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MYSQL ,[object Object]
Data Management
Advantage
Disadvantage
Commands
MySQL Presented by Jordan Nedelchev, FN:  Course: Modern Software Technologies
MySQL The principal author Monty Widenius
WHAT IS MYSQL ,[object Object]
licensed with the  GNU  General public license http://www.gnu.org/
MySQL  is a database management system.
MySQL  is a relational database management system.
MySQL  is Open Source Software.
THE IDEA ,[object Object]
Server PC  MySQL  Server  safe_mysqld
QUERY
RESPONSE
Separate the logical part of the queries from the implementation  logicalgly, and phisically.
HISTORY ,[object Object]
The reslt is a new SQL server -  MySQL
The name  MySQL   The directories "my”  Monty's daughter My
MAIN SUPPORTED PLATFORMS ,[object Object]
FreeBSD.
OpenBSD.
Mac OS X Server.
Win95, Win98, NT, and Win2000.
All modern systems with working Posix  threads and a C++ compiler.

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Sah

  • 1.
  • 6. MySQL Presented by Jordan Nedelchev, FN: Course: Modern Software Technologies
  • 7. MySQL The principal author Monty Widenius
  • 8.
  • 9. licensed with the GNU General public license http://www.gnu.org/
  • 10. MySQL is a database management system.
  • 11. MySQL is a relational database management system.
  • 12. MySQL is Open Source Software.
  • 13.
  • 14. Server PC MySQL Server safe_mysqld
  • 15. QUERY
  • 17. Separate the logical part of the queries from the implementation logicalgly, and phisically.
  • 18.
  • 19. The reslt is a new SQL server - MySQL
  • 20. The name MySQL The directories "my” Monty's daughter My
  • 21.
  • 24. Mac OS X Server.
  • 25. Win95, Win98, NT, and Win2000.
  • 26. All modern systems with working Posix threads and a C++ compiler.
  • 27.
  • 29. RedHat and SuSe Linux distributions.
  • 30. http://www.analysisandsolutions.com/code/mybasic.htm Beginners MySQL Tutorial on how to install and set up MySQL on a Windows machine.
  • 31.
  • 32. Under any (other) Linux (install as root) groupadd mysql useradd -g mysql mysql cd /usr/local gunzip < /path/to/mysql-VERSION-OS.tar.gz | tar xvf - ln -s mysql-VERSION-OS mysql cd mysql scripts/mysql_install_db chown -R mysql /usr/local/mysql chgrp -R mysql /usr/local/mysql bin/safe_mysqld --user=mysql &
  • 33. START MYSQL Server As root under Linux with the command safe_mysqld &
  • 34.
  • 35. Using passwords mysql -u <user> -h <Host> -p Example: mysql -u root -h localhost
  • 36. Exitting with the command quit or exit .
  • 37.
  • 41. SELECT * FROM table;
  • 42. SELECT * FROM table
  • 45. CREATE TABLE tableName(name1 type1, name2 type2, ...);
  • 47. INSERT INTO TABLE VALUES( value1, value2, ...);
  • 48. SELECT field1, field2, ... FROM tableName;
  • 49. SELECT * INTO OUTFILE 'C:/tmp/skr.txt' FROM skr;
  • 50. LOAD DATA INFILE /path/file.txt INTO TABLE skr;
  • 51.  
  • 52.  
  • 53.
  • 54.
  • 55. Works on many different platforms.
  • 57. Very fast joins using an optimized one-sweep multi-join
  • 58. Full operator and function support in the SELECT and WHERE parts of queries.
  • 59. You can mix tables from different databases in the same query.
  • 60. A privilege and password system that is very flexible and secure.
  • 62. Tested with a broad range of different compilers. (C/C++)
  • 64. Full support for several different character sets.
  • 65.
  • 67. As text manual.txt
  • 68. As HTML manual_toc.html
  • 69. As GNU Info mysql.info
  • 70. As PostScript manual.ps http://www.turbolift.com/mysql
  • 71.
  • 73. multi-threaded multi-user and robust SQL database server.
  • 74.
  • 75. MySQL doesn't yet support the Oracle SQL extension: i SELECT ... INTO TABLE , but supports INSERT INTO ... SELECT ..
  • 76. Does not support Stored Procedures and Triggers.
  • 77. MySQL doesn't support views, but this is on the TODO.
  • 78. MYSQL COMMANDS To login (from unix shell) use -h only if needed. # [mysql dir]/bin/mysql -h hostname -u root -p Create a database on the sql server. mysql> create database [databasename]; List all databases on the sql server. mysql> show databases; Switch to a database. mysql> use [db name]; To see all the tables in the db. mysql> show tables; To see database's field formats. mysql> describe [table name]; To delete a db. mysql> drop database [database name]; To delete a table. mysql> drop table [table name]; Show all data in a table. mysql> SELECT * FROM [table name];
  • 79. Returns the columns and column information pertaining to the designated table. mysql> show columns from [table name]; Show certain selected rows with the value &quot;whatever&quot;. mysql> SELECT * FROM [table name] WHERE [field name] = &quot;whatever&quot;; Show all records containing the name &quot;Bob&quot; AND the phone number '3444444'. mysql> SELECT * FROM [table name] WHERE name = &quot;Bob&quot; AND phone_number = '3444444'; Show all records not containing the name &quot;Bob&quot; AND the phone number '3444444' order by the phone_number field. mysql> SELECT * FROM [table name] WHERE name != &quot;Bob&quot; AND phone_number = '3444444' order by phone_number; Show all records starting with the letters 'bob' AND the phone number '3444444'. mysql> SELECT * FROM [table name] WHERE name like &quot;Bob%&quot; AND phone_number = '3444444'; Show all records starting with the letters 'bob' AND the phone number '3444444' limit to records 1 through 5. mysql> SELECT * FROM [table name] WHERE name like &quot;Bob%&quot; AND phone_number = '3444444' limit 1,5; Use a regular expression to find records. Use &quot;REGEXP BINARY&quot; to force case-sensitivity. This finds any record beginning with a. mysql> SELECT * FROM [table name] WHERE rec RLIKE &quot;^a&quot;;
  • 80. Show unique records. mysql> SELECT DISTINCT [column name] FROM [table name]; Show selected records sorted in an ascending (asc) or descending (desc). mysql> SELECT [col1],[col2] FROM [table name] ORDER BY [col2] DESC; Return number of rows. mysql> SELECT COUNT(*) FROM [table name]; Sum column. mysql> SELECT SUM(*) FROM [table name]; Join tables on common columns. mysql> select lookup.illustrationid, lookup.personid,person.birthday from lookup left join person on lookup.personid=person.personid=statement to join birthday in person table with primary illustration id; Creating a new user. Login as root. Switch to the MySQL db. Make the user. Update privs. # mysql -u root -p mysql> use mysql; mysql> INSERT INTO user (Host,User,Password) VALUES('%','username',PASSWORD('password')); mysql> flush privileges; Change a users password from unix shell. # [mysql dir]/bin/mysqladmin -u username -h hostname.blah.org -p password 'new-password'
  • 81. Change a users password from MySQL prompt. Login as root. Set the password. Update privs. # mysql -u root -p mysql> SET PASSWORD FOR 'user'@'hostname' = PASSWORD('passwordhere'); mysql> flush privileges; Recover a MySQL root password. Stop the MySQL server process. Start again with no grant tables. Login to MySQL as root. Set new password. Exit MySQL and restart MySQL server. # /etc/init.d/mysql stop # mysqld_safe --skip-grant-tables & # mysql -u root mysql> use mysql; mysql> update user set password=PASSWORD(&quot;newrootpassword&quot;) where User='root'; mysql> flush privileges; mysql> quit # /etc/init.d/mysql stop # /etc/init.d/mysql start Set a root password if there is on root password. # mysqladmin -u root password newpassword Update a root password. # mysqladmin -u root -p oldpassword newpassword
  • 82. Allow the user &quot;bob&quot; to connect to the server from localhost using the password &quot;passwd&quot;. Login as root. Switch to the MySQL db. Give privs. Update privs. # mysql -u root -p mysql> use mysql; mysql> grant usage on *.* to bob@localhost identified by 'passwd'; mysql> flush privileges; Give user privilages for a db. Login as root. Switch to the MySQL db. Grant privs. Update privs. # mysql -u root -p mysql> use mysql; mysql> INSERT INTO db (Host,Db,User,Select_priv,Insert_priv,Update_priv,Delete_priv,Create_priv,Drop_priv) VALUES ('%','databasename','username','Y','Y','Y','Y','Y','N'); mysql> flush privileges; or mysql> grant all privileges on databasename.* to username@localhost; mysql> flush privileges; To update info already in a table. mysql> UPDATE [table name] SET Select_priv = 'Y',Insert_priv = 'Y',Update_priv = 'Y' where [field name] = 'user'; Delete a row(s) from a table. mysql> DELETE from [table name] where [field name] = 'whatever';
  • 83. Update database permissions/privilages. mysql> flush privileges; Delete a column. mysql> alter table [table name] drop column [column name]; Add a new column to db. mysql> alter table [table name] add column [new column name] varchar (20); Change column name. mysql> alter table [table name] change [old column name] [new column name] varchar (50); Make a unique column so you get no dupes. mysql> alter table [table name] add unique ([column name]); Make a column bigger. mysql> alter table [table name] modify [column name] VARCHAR(3); Delete unique from table. mysql> alter table [table name] drop index [colmn name]; Load a CSV file into a table. mysql> LOAD DATA INFILE '/tmp/filename.csv' replace INTO TABLE [table name] FIELDS TERMINATED BY ',' LINES TERMINATED BY '' (field1,field2,field3); Dump all databases for backup. Backup file is sql commands to recreate all db's. # [mysql dir]/bin/mysqldump -u root -ppassword --opt >/tmp/alldatabases.sql
  • 84. Dump one database for backup. # [mysql dir]/bin/mysqldump -u username -ppassword --databases databasename >/tmp/databasename.sql Dump a table from a database. # [mysql dir]/bin/mysqldump -c -u username -ppassword databasename tablename > /tmp/databasename.tablename.sql Restore database (or database table) from backup. # [mysql dir]/bin/mysql -u username -ppassword databasename < /tmp/databasename.sql Create Table Example 1. mysql> CREATE TABLE [table name] (firstname VARCHAR(20), middleinitial VARCHAR(3), lastname VARCHAR(35),suffix VARCHAR(3),officeid VARCHAR(10),userid VARCHAR(15),username VARCHAR(8),email VARCHAR(35),phone VARCHAR(25), groups VARCHAR(15),datestamp DATE,timestamp time,pgpemail VARCHAR(255)); Create Table Example 2. mysql> create table [table name] (personid int(50) not null auto_increment primary key,firstname varchar(35),middlename varchar(50),lastnamevarchar(50) default 'bato');