This document provides instructions for various MySQL backup and restore operations using mysqldump and other tools. It discusses:
- Backing up and restoring a single database or multiple databases using mysqldump.
- Backing up all databases, restoring databases, and restoring a single database.
- Backing up a specific table.
- Importing data into MySQL from text files using mysqlimport or LOAD DATA LOCAL INFILE statements.
- Additional topics covered include MySQL backups on Linux and Windows, different backup types, dumping databases to other servers, and loading SQL files and CSV files into MySQL.
MySQL Enterprise Backup: Backup & Recovery Performance tests, full and partial restores, comparisons using MySQL Utilities, using transportable tablespaces, etc.
A simple scenario on a small environment, using ubuntu a laptop and an external hd, showing how to use MEB and leave mysqldump to those specific situations, and reduce backup and restore times via MEB and single-image files, extracting specific .ibd or .frm's and recover the lost rows, or a dropped table.
MySQL Backup and Security Best PracticesLenz Grimmer
Slides of my talk about MySQL Backup and Security at phpDay in Verona, Italy:
http://www.phpday.it/site/phpday-2009/calendario-conferenze/canale-developers/mysql-backup-and-security-best-practices/
MySQL Enterprise Backup: Backup & Recovery Performance tests, full and partial restores, comparisons using MySQL Utilities, using transportable tablespaces, etc.
A simple scenario on a small environment, using ubuntu a laptop and an external hd, showing how to use MEB and leave mysqldump to those specific situations, and reduce backup and restore times via MEB and single-image files, extracting specific .ibd or .frm's and recover the lost rows, or a dropped table.
MySQL Backup and Security Best PracticesLenz Grimmer
Slides of my talk about MySQL Backup and Security at phpDay in Verona, Italy:
http://www.phpday.it/site/phpday-2009/calendario-conferenze/canale-developers/mysql-backup-and-security-best-practices/
Embracing Database Diversity: The New Oracle / MySQL DBA - UKOUGKeith Hollman
Classic Oracle DBAs are somewhat starved for the "big overview" knowledge that will make them better decision makers and less hesitant to use MySQL.
The aim is to allow an existing Oracle DBA to get to grips with a MySQL environment, concentrating on the real focus points, and highlighting the similarities of both RDBMS'.
And both worlds provide the necessary tools to avoid a sleepless night.
Oracle Database 12c offers new enhancements and additions in Recovery Manager (RMAN). The features listed in this article will help you transport data across platforms and reduce downtime by 8x versus tradition migration approach, recover table and table partitions to point-in-time without affecting other objects in the database, and audit RMAN-related events using unified auditing. Take advantage of these new features for efficient backup and recovery.
12cR2 Single-Tenant: Multitenant Features for All EditionsFranck Pachot
Multitenant architecture is available even without Oracle's multitenant option. In this session take a look at the overhead and the 12.2 new features so that you can choose among single-tenant or non-container databases. These features include agility in data movement, easy flashback, and fast upgrade.
Highly efficient backups with percona xtrabackupNilnandan Joshi
Percona XtraBackup is an open source, free MySQL hot backup software that performs non-blocking backups for InnoDB and XtraDB databases. In this talk we'll describe below things.
- How it works with MySQL/Percona Server and what are the features provided
- Difference between Xtrabackup and Innobackupex
- How to take full/increment/partial backup and restore
- How to use features like streaming, compression, remote and compact backups
- How to troubleshoot the issue with xtrabackup
Embracing Database Diversity: The New Oracle / MySQL DBA - UKOUGKeith Hollman
Classic Oracle DBAs are somewhat starved for the "big overview" knowledge that will make them better decision makers and less hesitant to use MySQL.
The aim is to allow an existing Oracle DBA to get to grips with a MySQL environment, concentrating on the real focus points, and highlighting the similarities of both RDBMS'.
And both worlds provide the necessary tools to avoid a sleepless night.
Oracle Database 12c offers new enhancements and additions in Recovery Manager (RMAN). The features listed in this article will help you transport data across platforms and reduce downtime by 8x versus tradition migration approach, recover table and table partitions to point-in-time without affecting other objects in the database, and audit RMAN-related events using unified auditing. Take advantage of these new features for efficient backup and recovery.
12cR2 Single-Tenant: Multitenant Features for All EditionsFranck Pachot
Multitenant architecture is available even without Oracle's multitenant option. In this session take a look at the overhead and the 12.2 new features so that you can choose among single-tenant or non-container databases. These features include agility in data movement, easy flashback, and fast upgrade.
Highly efficient backups with percona xtrabackupNilnandan Joshi
Percona XtraBackup is an open source, free MySQL hot backup software that performs non-blocking backups for InnoDB and XtraDB databases. In this talk we'll describe below things.
- How it works with MySQL/Percona Server and what are the features provided
- Difference between Xtrabackup and Innobackupex
- How to take full/increment/partial backup and restore
- How to use features like streaming, compression, remote and compact backups
- How to troubleshoot the issue with xtrabackup
Пожалуй даже скептикам сегодня очевидно - времена меняются и меняются кардинально: новые бизнес-модели вытесняют старые подходы. Традиционный бизнес уступает место новому, в котором ценность создается пользователями, в основе лежат современные технологии, а скорость развития такого бизнеса приближается к экспоненциальной. О новой парадигме бизнеса ( платформенном подходе) текущий обзор
Financially clearing patients is becoming an important part of revenue cycle ...Healthcare consultant
Revenue cycle management remains relatively elusive in the new healthcare landscape, as new regulations and reforms have led the industry to evolve and left many hospitals scrambling to keep their revenue strong in a value-based care reimbursement model.
Today, technology platforms can play a role in assisting providers, payers, and consumers communicate and interact more efficiently, which will lead to a more durable revenue cycle management strategy. There are several key areas that revenue cycle managers could focus on to ensure their medical facility optimized their reimbursement.
Immigration lawyers frequently need psychological evidence in support of waiver cases. But mental health professionals have importantly distinct areas of focus. This webinar will explain the role of forensic psychologists, who provide expert testimony and reports to guide legal decision making. We will discuss what you should expect in a high-quality report, and the evaluation and testing that should support the report's analysis and conclusions. We will specifically discuss hardship evaluations of qualifying relatives, as used in I-601/601A waiver applications.
This webinar will address:
~ Understanding the role of the forensic psychologist.
~ How is a forensic psychologist different from a “regular” psychologist, therapist, counselor, or social worker?
~ What are the training qualifications of a forensic psychologist?
~ What is the difference between a therapist’s letter of support and a forensic evaluation?
~ What goes into creating a strong forensic evaluation?
~ What are objective psychological testing instruments, why are they useful, and what instruments are typically used in forensic evaluations?
~ Best practices for immigration attorneys working with forensic psychologists.
Psychological reports in I-601/601A waivers, VAWA applications, U-visa applications, Drug and Alcohol Abuse/Rehabilitation, Mental Health Inadmissibility
A closer quick understanding of different backup technologies and pros and cons backup & recovery,ntbackup,types of backups, windows backup path so far, differential backup, incremental backup, full backup, mirror backup. If you have have anyqueries please contact me at jabvtl@gmail.com
Convegno 4 Ottobre a Jesi: Disfunzione Erettile e Sessuologia: sensibilizzare, aggiornare, informare.
Intervento del Dr. Maurizio Diambrini, urologo presso Ospedale di Osimo (AN).
iLAB OVERVIEWScenario and SummarySuccessful database recovery re.docxrochellscroop
iLAB OVERVIEW
Scenario and Summary
Successful database recovery relies on the database being backed. This is what enables the database to recover data that were lost due to a media failure, loss of power, or any other type of disaster. Each time the online line redoes logs filled up in a log group, the DBMS issues a log switch that will move the log writer process from the current redo log group to the next one in line. The archive background process begins archiving the data in the full online log group files to the archive log files. This is done simultaneously for each log file in the group. If media recovery is needed at the time that the database needs recovery, then the DBMS will search through the archived log files to find the ones that need to be used.
In Part 1, you will use mysqldump command to dump database, expand tables, and restore database.
In Part 2, you will use MySQL Workbench to back up, expand tables, and restore the database.
Note:
Be sure that you are making screenshots and save in Lab4 Report.
Deliverables
Grading of the lab assignment will be based on the following.
Assignment Step
Description
Points
Part 1: Take Dump/Backup and restore database using command line
Step 1
Taking a backup of the database
5
Step 2
Expand table
5
Step 3
Restore and recover the database
10
Part 2: Backup and Recovery using MySQL Workbench
Step 1
Taking a backup of the database using Export to
Dump Project Folder
5
Step 2
Taking a backup of the database using Export to
self-contained file
5
Step 3
Expand table
5
Step 4
Restore database using Import from
Dump Project Folder
10
Step 5
Expand table
5
Step 6
Restore database using Import from
self-contained file
10
Total iLab Points
60
The Report file should be a single file called yourname_Lab_4.doc to submit to the Dropbox for the Week 4 iLab.
Your report should show any queries, create statements, or other SQL code, along with the resulting return from the database.
iLAB STEPS
Part 1: Take Dump/Backup and Restore Database Using Command Line
Step 1: Taking a Backup of the Database
1.
Go to
MySQL Command line – Unicode
and enter password.
2.
There are several databases here now. To list them, type:
Mysql>show databases;
3.
Identify required database;
You have to make database backup to be used later to restore.
4.
Confirm the location of mysqldump utility on your local machine.
Usually, it is:
C:\Program Files\MySQL\MySQL Server5.6\bin
5.
Go to
Start - Accessories – Point to Command Prompt and
right-click on Run as administrator
(to be able to have all types of access on PC).
6.
Set up location using cd command: type in Command prompt:
C:\user username>cd C:\ and
press Enter
C:\>cd Program Files and
press Enter
C:\\Program Files> cd MySQL and
press Enter.
C:\Program Files\MySQL>cd MySQL Server5.6\ and
press Enter.
C:\Program Files\MySQL\MySQL Server5.6>cd and
press Enter.
7.
Use mysqldump utility.
a)
In Command prompt, type:
Mysqldump –uroot –p databasen.
This ppt provide information about:
1. Database basics,
2. Indexes,
3. PHP MyAdmin Connect & Pconnect,
4. MySQL Create,
5. MySQL Insert,
6. MySQL Select,
7. MySQL Update,
8. MySQL Delete,
9. MySQL Truncate,
10. MySQL Drop
Summary of the lessons we learned with Docker (Dockerfile, storage, distributed networking) during the first iteration of the AdamCloud project (Fall 2014).
The AdamCloud project (part I) was presented here:
http://www.slideshare.net/davidonlaptop/bdm29-adamcloud-planification
Exam 1z0 062 Oracle Database 12c: Installation and AdministrationKylieJonathan
Training increase your chance of passing Oracle Database 12c: Installation and Administration exam. Examarea.com
provide you the updated study dumps for 1Z1-062 exam.
@ https://www.examarea.com/1Z1-062-exams.html
#IT #oracle #database #training #dumps #discount
With MySQL being the most popular open source DBMS in the world and with an estimated growth of 16 percent anually until 2020,we can assume that sooner or later an Oracle DBA will be handling a MySQL database in their shop. This beginner/intermediate-level session will take you through my journey of an Oracle DBA and my first 100 days of starting to administer a MySQL database, show several demos and all the roadblocks and the success I had along this path.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
1. Contents:
A. Backup a single Database
B. Backup Multiple Databases
C. Backup all the Databases
D. Restore all the Databases
E. Restore a Single Database
F. Backup a specific Table
G. Import data in MySQL.
H. Backup (Script on Linux)
I. Import and Export on MySQL Database
J. MySQL Backups on Windows
K. Different types of Backups for MySQL databases
L. Dump MySQL database into a new database on another server
M. How to dump local MySQL data to remote MySQL server through terminal?
N. Loading a SQL file into MySQL
O. Loading CSV or tab delimited files into MySQL
P. Mysqldump Upgrading to 4.1
Q. Simple backup options
2. (A) Backup a single database:
Using mysqldump, you can backup a local database and restore it on a remote database
at the same time, using a single command. In this article, let us review several practical
examples on how to use mysqldump to backup and restore. For the impatient, here is the
quick snippet of how backup and restore MySQL database using mysqldump:
Backup: #mysqldump –u root –p[root password] [database name] >dumpfilename.sql
Restore: #mysql –u root –p[root password] [databasename] < dumpfilename.sql
This example takes a backup of sampledb database and dumps the output to dbdump.sql
[mysql@localhost]# /usr/bin/mysqldump –u root –pmysql sampled > /tmp/dbdump.sql
[mysql@localhost]# mysqldump –u root –p[rootpassword] [databasename] >
/tmp/dbdump.sql
http://www.techiecorner.com/31/how-to-restore-mysql-database-from-sql-dump-file/
http://www.cyberciti.biz/faq/mysql-datadir-files-stored-unix-linux/ (location of data-dir)
After you press enter to execute the command, the backup will be generated. If you
browse to this path: /tmp, then you should see dbdump.sql in there.
(B) Backup multiple databases:
If you want to backup multiple databases, first identify the databases that you want to
backup using the show databases as shown below:
# mysql -u root -ppassword
mysql> show databases;
3. +--------------------+
| Database |
+--------------------+
| information_schema |
| newdb |
| mysql |
| sampledb |
For example, if you want to take backup of both sampledb and newdb database, execute
the mysqldump as shown below:
[mysql@localhost]# mysqldump –u root –p[rootpassword] --databases
sampledbnewdb> /tmp/dbdump.sql
Verify the dbdump.sqldump file contains both the database backup.
#grep –I “Current database:” /tmp/dbdump.sql
--Current database: ’newdb’
--Current database:’sampledb’
(C) Backup all the databases:
The following example takes a backup of all the database of the MySQL instance.
# mysqldump -u root -ptmppassword --all-databases > /tmp/all-database.sql
(D) Restore all the databases:
(How to restore mysqldump –all-databases backup ?)
[mysql@INVIRH54DB3 ~]$ mysql -u root -p < /tmp/alldbs55.sql
Enter password: mysql
Or
Mysql –u root –ppassword@<alldatabases.sql
4. (E) Restore a singledatabase:
In this example, to restore the newdb database, execute mysql with < as shown below.
When you are restoring the dumpfilename.sql on a remote database, make sure to create
the newdb database before you can perform the restore
# mysql -u root -p[root_password] [database_name] <dumpfilename.sql
5.
6.
7. (F) Backup a specific table:
In this example, we backup only the ta2 table from sampledb database.
#mysqldump –u root –ptemppasswordsample ta2 > /tmp/nwedb_ta2.sql
(OR)
#mysqldump –c –u username –ppassworddatabasenametablename>
/tmp/databasename.tablename.sql
9. (G) Import data in MySQL
Create an employee table and employee.txt data file.
For the examples, let us create a very simple employee table with three columns–
employee number, employee name andjob.
(1)Mysql -u root -ptmppassword
Mysql> use test
Database changed
mysql> create table employee (empnoint,enamevarchar(15),job varchar(10));
(2)Create a test datafile employee.txt with fields delimited by tab as shown below.
Cat employee.txt
100 John Doe DBA
200 John Smith Sysadmin
300 Raj Patel Developer
(3)Upload tab delimited datafile to MySQL table
Use mysqlimport to import the employee.txt datafile to employee table in test database,
as shown below:
mysqlimport -u root -ptmppassword --local test employee.txt
test.employee: Records: 3 Deleted: 0 Skipped: 0 Warnings: 0
(4)Verify that the records got uploaded successfully.
mysql -u root -ptmppassword
mysql> use test;
mysql> select * from employee;
Note: In mysqlimport, the name of the datafile should match the name of the table. The
extension of the datafile can be anything. In the above example, only employee.* datafile
10. can be used to upload data to employee table. You’ll get the following error message
when the filename is not same as tablename:
mysqlimport -u root -ptmppassword --local test emp.txt
mysqlimport: Error: Table 'test.emp' doesn't exist, when using table: emp
[Note: The table name is employee. So, datafile name should be employee.*]
(5) Import multiple datafiles into multiple MySQL tables:
The following example uploads data from two different datafiles to two different tables.
I.e. It uploads employee.txt to employee table and manager.txt to manager table.
mysqlimport -u root -ptmppassword --local test employee.txt manager.txt
(6) Use LOAD DATA LOCAL INFILE to upload data to MySQL tables:
The mysqlimport client is simply a command-line interface to the LOAD DATA LOCAL
INFILE SQL statement. Most options to mysqlimport correspond directly to clauses of
“load data local infile” syntax. You can perform the same upload explained in example#1
using “load data local infile” instead of mysqlimport as explained below:
mysql -u root -ptmppassword
mysql> use test;
mysql> LOAD DATA LOCAL INFILE '/home/ramesh/employee.txt' INTO TABLE employee
FIELDS TERMINATED BY 't' LINES TERMINATED BY 'n' (empno, ename, job);
Records: 3 Deleted: 0 Skipped: 0 Warnings: 0
mysql> select * from employee;
+-------+------------+-----------+
| empno | ename | job |
+-------+------------+-----------+
| 100 | John Doe | DBA |
| 200 | John Smith | Sysadmin |
| 300 | Raj Patel | Developer |
+-------+------------+-----------+
3 rows in set (0.00 sec)
Load a CSV file into a table.
11. Mysql> LOAD DATA INFILE ‘/tmp/filename.csv replace into table *tablename+ fields
terminated by ‘,’ lines terminated by ‘n’ (field1,field2,field3);
(7)Most frequently used mysqlimport options:
The most frequently used mysqlimport options are shown in the example below. Most of
these options are self-explanatory.
Compress: Compress all information sent between the client and the server
delete: This option is very handy when you want to empty the table before importing the
text file local: Read input files locally from the client host
lock-tables: Lock all tables for writing before processing any text files. This ensures that all
tables are synchronized on the server.
1. mysqlimport
--user=root
--password=tmppassword
--columns=empno,ename,job
--compress
--delete
--fields-optionally-enclosed-by='"'
--fields-terminated-by='t'
--fields-escaped-by=''
--lines-terminated-by='n'
--local
--lock-tables
--verbose
test employee.txt
Output of the above mysqlimport command:
Connecting to localhost
Selecting database test
Locking tables for write
Deleting the old data from table employee
12. Loading data from LOCAL file: /home/ramesh/employee.txt into employee
test.employee: Records: 3 Deleted: 0 Skipped: 0 Warnings: 0
Disconnecting from localhost
Issue while taking a backup on mysql
http://itknowledgeexchange.techtarget.com/security-admin/resolving-mysql-error-1146-
table-doesnt-exist-when-doing-backup/
(H) Backup (Script on Linux) :
[root@mysql backup]# cat dbbackup.sh
MAIL_ADMINS="DEEPAK.KACHOLE@yahoo.com"
LOGFILE=/backup/dbbackup.log
#Clear the Log file
rm -f $LOGFILE
#Backup MySQL Database
if
/usr/bin/mysqldump --verbose --log-error=$LOGFILE -u root -p'abcd' --all-databases |
gzip> /backup/database_`date '+%m-%d-%Y'`.sql.gz
then
mail -s "$HOSTNAME MySQL Backup Sucessful" $MAIL_ADMINS < $LOGFILE
exit 0
else
mail -s "$HOSTNAME MySQL Backup Failed" $MAIL_ADMINS
exit 1
fi
Clean Up all files older than 10 days-
find /backup/ -mtime +10 -exec rm -Rf {} ;
(I) How to import and Export MySQL Database.
To export MySQL DB:
1.Type the below command to export MySQL db.
#mysqldump –u root –p DBName>dbname11092012.sql
To import MySQL DB:
13. 1. Go to file location where you saved backupdb and type following command.
2. Login into MySQL and create new database.
Create database newdb
3.exit from sql and type as following
#mysql –u root –p newdb<db_04102012.sql
[where newdb is newly created db and db_04102012-0700.sql is going to restore newly
created db.]
(J)MySQL backups on windows:
14. On Windows cmd prompt using the following command on taking backup.
On Windows cmd prompt using the following command on restoring the tables or
databases.
15. (K)Different types of Backups for MySQL databases
(1) Logical Backup
It is done by dumping the contents of database into text files containing SQL statements
which can be used to rebuild the database. They can be used even to build it on a host
with different architecture and with different engine. But they are generally slower than
the raw kind, for both backup and recovery operations. And they can be larger than the
actual data too. It can be performed using the mysqldump utility.
(2) Raw (Binary) Backup
It involves only file copy operations, so can be very fast to perform backup or recoveries.
The engine type of tables cannot be changed in this method, as it preserves the actual
data format. Depending on engine type, it can be used to take Cold, Hot or Warm
backups. Various tools are available for this operation, which will be covered in a slide
ahead.
(3) Snapshot Based Backup
16. This kind of backup uses external utilities to take file system snapshot of MySQL. For
InnoDB, a hot backup can be performed using this, and for other engines, a warm backup.
(4) Replication-Based Backup
A copy of the Primary installation can be maintained on a separate server using a
Replication setup. Using this method, an exact replica of the databases can be maintained
separately, and can be used for backup purposes. But it is comparatively an expensive
option.
(5) Incremental Backup
The binary logs, which contain a record of all changes done on the database, can be
backed up for the purpose of doing point-in-time-recovery. Using tools like mysqlbinlog,
databases can be recovered from Binary logs till a certain point in time, or certain log
position also. Binary logging should be enabled on MySQL servers
(6) Backup Tools
Though backups can be taken without the use of any tool, there are some tools designed
specifically to make the operation easier.
(7) Mysqlhotcopy
Provided with the MySQL distribution, this is useful to perform raw backup of MyISAM
type tables only. Contrary to its name, it is not exactly a “hot” backup, as database is not
fully available during the operation, but is available only for read. It is locked and cannot
be altered. So, it is also called a “warm” backup.
(8) MySQL dump
It is provided with the MySQL distribution. It helps in taking logical backups for any kind of
engine. Our current masters are designed to automatically enable this backup in cron at
the time of installation.
(9) MySQL Administrator
17. It is available as a separate GUI download from MySQL, and can be used to perform
logical backups. It can also be used with any database engine, and has some tracking
capabilities also.
(10) InnoDB Hot Backup (ibbackup)
It is a commercial product available from InnoDB. It performs raw backups of MySQL
databases using InnoDB engine only. It is in fact a real “hot backup” as databases are
completely available for read and update during the operation.
(11) Third Party Tools
Among the many commercially available third party tools available, there is one called
Zmanda Recovery Manager that can perform both logical and raw backups for all engine
types. It can do both warm and hot backups, and can drive Replication and Snapshot
based backups too. It takes consistent backups, and has extensive reporting and Tracking
capabilities
(L) Dump MySQL database into a new database on another server :
Here I am trying to achieve is to dump a MySQL database over to a new database on a
different server; I also wanted to do it with limited write to the original server.
The plan is to dump the old MySQL database, and import the output into the new
database on the second server.
Here is what I’ve got; I've done it this way so that in theory the original server will only be
doing a read, whereas the new server will be doing the write.
$mysqldump –uusername –ppassworddbname | sshuser@newhostmysql –u user –
ppassword newdbname
(http://stackoverflow.com/questions/10104725/dump-mysql-database-into-a-new-
database-on-another-server )
18. (M) How to dump local MySQL data to remote mysql server through
terminal?
I’m currently working on some local development, which often needs to update the
remote database with my own local development database.
This is what I try to do , dump the local database and ssh to remote and update the db.
mysqldump -ulocaluser -plocalpasslocaldb | ssh user@255.255.255.255 "mysql -
uremoteuser -premotepassremotedb"
It seem like completed without any error, but checking on the remote db, it seem like the
old table never drop and replace with the new table data.
Check the output ofmysqldump -ulocaluser –plocalpass localdbDoes this contain DROP
statements?
(N)Loading a SQL file into MySQL:
Import SQL file from MySQL client command line:
mysql> source file.sql
OR
mysql> . file.sql
The SQL file may have schema generation statements like CREATE TABLE ... or data
load statements like INSERT INTO. The statements in the SQL file will be executed
as if they were being specified at the MySQL client command line interface. One
may import data into the MySQL database from SQL files or "load" data from CSV
or tab delimited files using the LOAD command.
(O)Loading CSV or tab delimited files into MySQL
"LOAD DATA LOCAL INFILE" vs "LOAD DATA INFILE": The term "LOCAL" pertains to
19. whether the file is local to the MySQL client. Without the keyword "LOCAL", the data file
must reside on the same computer as the database server. The location of the client in
this case would be irrelevant. The "LOAD DATA INFILE" has many file permission pitfalls
and is thus tricky. In fact I have never been successful using this method with a user
directory.Load a tab delimited file into the database:
Command:LOAD DATA LOCAL INFILE 'file.dat' INTO TABLE employer;
Input tab delimited file: file.dat
Note: The number of tab delimited fields MUST match the number and order of fields in
the database. Load a comma delimited file (CSV) into the database:
Command:LOAD DATA LOCAL INFILE "/tmp/TableData.csv" INTO TABLE employer
FIELDS TERMINATED BY "," OPTIONALLY ENCLOSED BY """" LINES
TERMINATED BY "rn" (Name, Dept, jobTitle);
Note:MS/Windows generated files will have lines terminated by "rn".
Linux/Unix generated files will have lines terminated by "n".
File locations on database server must be absolute path names, relative path or relative
to the mysqld process owner's home directory (typically /var/lib/mysql/). File locations on
the client may be fully qualified or relative to the current mysql client directory.
Fully qualified: /tmp/TableData.csv
Relative to current mysql client directory: ./TableData.csv (Verify current directory:
mysql> ! pwd)
Database process owner home directory: TableData.csv(Actual:
/var/lib/mysql/TableData.csv)
Text strings often are encapsulated by quotes so that the strings may contain a comma
without representing a new field.
20. ERROR 13 (HY000): Can't get stat of '/tmp/TableData.csv' (Err code: 13)
The fils is local and you have not specified the "LOCAL" directive.
ERROR 29 (HY000): File '/var/lib/mysql/test/TableData.csv' not found (Errcode: 2)
Error from command LOAD DATA INFILE 'TableData.csv' INTO ... where the file is assumed
to be read from the /database-process-home-directory/mysql-database-
name/TableData.csv
(Note: Database name "test" is being used.)
ERROR 1045 (28000): Access denied for user 'user1'@'%' (using password: YES)
OR
ERROR 2 (HY000): File '/tmp/TableData.csv' not found (Err code: 2)
Error from command LOAD DATA INFILE '/tmp/TableData.csv' INTO .... This is a common
pitfall, trying to load a file located on the database server remotely from a client. Getting
the file permissions correct is difficult. Avoid this method. Use the LOAD DATA LOCAL
INFILE instead of the LOAD DATA INFILE method (it is so much easier).
Also look at the MySQLimport command.
Dump/Backup/Transfer Database:
The mysqldump command will read the MySQL database and generate a SQL command
text file. This allows data to be migrated to other versions of mySQL (i.e. upgrade from
typical Red Hat (RH7.x to FC3) MySQL release 3.23.58 to a more advanced MySQL 4.1 or
5.0) or to other SQL databases. SQL command file generated can create tables, insert
data.
Option Description
-A--all-databases Dump all the databases.
-B--databases Dump the specified databases.
-h--host= Specify host to connect to.
-p--password= Specify password. If you do not specify a password, then you will be
queried.
21. -u--user= Specify user. Defaults to current user logged in.
-a--all Include all mySQL specific SQL "create" options.
-e--extended-insert Allows utilization of the new, much faster INSERT
Syntax. Database you are migrating to must support this notation.
-q--quick Don’t buffer query, dump directly to stdout.
-l--lock-tables Lock all tables for read.
-?--help Display command line options.
(P) MysqldumpUpgrading to 4.1:
Upgrading mySQL to 4.1 from 3.23
Use the command:
mysql_fix_privilege_tables --password=root-password
This allows you to use the new GRANT command.
Restore MySql Database:
Restore using dump generated by mysqldump above:
mysql -h host-name -u user-id -psupersecretpassword< total-db-dump-file.sql
On Source Server :
22. Mysql database-name -h host-name -u user-id -psupersecretpassword<db-
Dump-file.sql
On Destination server :
23. (Q) Simple backup options
Backup all databases uncompressed from the command line (not from within MySQL):
Backup:mysqldump -u root -pmypass --all-databases >alldatabases.sql
Restore full:mysql -u username -pmypass<alldatabases.sql (no space in between -p and
mypass)
Restore single:mysql -u username -pmypassmydb<mydb.sql (no space in between -p and
mypass)
Backup all databases compressed from the command line (not from within MySQL):
With bzip2:mysqldump --all-databases | bzip2 -c > databasebackup.sql.bz2 (use bunzip2
to uncompress)
With gzip:mysqldump --all-databases | gzip> databasebackup.sql.gz (use gunzip to
uncompress)
Backup a specific database only:
mysqldump -u username -pmypassdatabasename>backupfile.sql
Backup database structure only:
mysqldump --no-data --databases databasename>structurebackup.sql
Backup a specific database and specific tables within that database only:
mysqldump --add-drop-table -u username -pmypassdatabasename table_1 table_2
>databasebackup.sql
The syntax for the command to issue is:
mysqldump -u [username] -p[password] [databasename] [table1 table2 ....]
>backupfilename.sql
24. Backing up only the database structure of specific databases, not the actual data:
mysqldump --no-data --databases db1 db2 db3 >structurebackup.sql
@@@@@@@@@@@@@@@@@@@@@
BACKUP AND RECOVER MySQL DATABASE
It is important to back up your databases so that you can recover your data and be up and running again in case
problems occur, such as system crashes, hardware failures, or users deleting data by mistake.
Types of Backup:
logical backup
This type of backup is created by saving information that represents the
logical database structures using SQL statements like create database, create
table and insert. This type of backup is ideal when you want to upgrade from
one version of MySQL to another however it is a slower method of backing
up.
physical
backup
This type of backup is a backup of the actual database files or disk partitions,
this type of backup can be very fast to backup and restore.
full backup
A full backup is a standalone backup containing everything in the database,
this could then be restored on another server. A full backup can be either
logical or physical.
incremental
backup
This type of backup only contains the data that has changed from the last
backup. The advantage of this type of backup is that it is faster as there is
not some much data to backup, however the disadvantage is that it takes
longer to recover.
consistent
backup
This is a backup at an exact moment in time, generally you shutdown the
database (or quiescent mode) then take the backup.
hot backup
This type of backup is taken when the database is running, during the backup
both reads and writes are not blocked
25. warm backup
This type of backup is taken when the database is running, however reads
are not blocked but writes are prohibited from making any modifications to
the database.
cold backup
Similar to a consistent backup as the database is shutdown before the
backup begins
point-in-time
restore
It is a restoration of a database to a specified date and time , some
databases use a full backup and recovery logs to restore to that point-in-
time, others can only use the last full backup which means that data might
have to be re-keyed into the system.
Types of Backup tools:
Backup tools for MySQL
Backup method
Storage
engine
Impact
Backup
speed
Recovery
speed
Recovery
granularity
mysqldump ALL WARM MEDUIM SLOWEST
MOST
FLEXIBLE
mysqldump INNODB HOT MEDUIM SLOWEST
MOST
FLEXIBLE
select into outfile ALL WARM SLOW SLOW
MOST
FLEXIBLE
mk-parallel-backup ALL WARM MEDUIM MEDUIM FLEXIBLE
ibbackup INNODB HOT FAST FAST FLEXIBLE
ibbackup ALL WARM FAST FAST FLEXIBLE
backup command
in mysqld
ALL HOT FAST FAST FLEXIBLE
filesystem (copy files) ALL COLD FASTEST FASTEST NOT FLEXIBLE
26. snapshot (using LVM,
ZFS, VMWare)
ALL
ALMOST
HOT
FAST FAST
LEAST
FLEXIBLE
mysqlhotcopy MyISAM
MOSTLY
COLD
FAST FAST FLEXIBLE
MySQLdump:
mysqldump is an effective tool to backup MySQL database. It creates a *.sql file with DROP table, CREATE
table and INSERT into sql-statements of the source database. To restore the database, execute the *.sql file on
destination database.
mysqldump
# backup all databases
mysqldump --user=root --password --all-databases > backup_<date>_all.sql
# backup a specific database
mysqldump --user=root --password <database_name>>
backup_<date>_<database_name>.sql
# backup multiple databases
mysqldump --user=root --password <database_name>,<database_name>>
backup_<date>.sql
# backup a table from a database
mysqldump --user=root --password <database_name><table_name>>
backup_<date>_<database_name>_<table_name>.sql
# backup some specific data
mysqldump --user=root --password <database_name><table_name> --where
"last_name='VALLE' order by first_name > backup_<date>.sql
# dumping from one database to another
mysqldump --databases <database_name> | mysql -h
<destination_host><database_name>
restore a
mysqldump
# all databases
mysql --user=root --password < backup.sql
# specific database
mysql --user=<user> --password <database_name><
backup_<dataabse_name>.sql
27. SELECT INTO OUTFILE
The SELECT INTO OUTFILE SQL statement is actually a variant of the SELECT query. It is used when you
want to direct query output to a text file. This file can then be opened by a spreadsheet application, or imported into
another database like Microsoft Access, Oracle, or any other software that supports delimitation.
Ex
SELECT id, data INTO @x, @y FROM test.t1 LIMIT 1;
LOAD DATA INFILE
The LOAD DATA INFILE statement reads rows from a text file into a table at a very high speed. The file name
must be given as a literal string.
Ex
LOAD DATA INFILE 'data.txt' INTO TABLE db2.my_table;
mysqlhotcopy
mysqlhotcopy is a Perl script that was originally written and contributed by Tim Bunce. It uses FLUSH
TABLES, LOCK TABLES, and cp or scp to make a database backup. It is a fast way to make a backup of the
database or single tables, but it can be run only on the same machine where the database directories are
located. mysqlhotcopy works only for backing up MyISAM and ARCHIVE tables.
Ex
#backup a database
mysqlhotcopy <database_name> /backups
# backup multiple databases
mysqlhotcopy <database_name> accounts /backups
#backup a database to to another server
mysqlhotcopy --method=scp <database_name> username@backup.server:/backup
# use pattern match to backup databases and tables
mysqlhotcopy <database_name>./^employees/ /backup
10 Ways to Automatically & Manually Backup MySQL Database