This document provides an overview of data management commands for backing up, restoring, mounting, and deleting data in an InfiniFlux database management system. It describes the backup concept of storing time-based database images as files. It also outlines the syntax and usage of the BACKUP, RESTORE, MOUNT, DELETE, and UNMOUNT commands to backup data to disk or file, restore from backup images, mount backup images as read-only views, and delete data by time or number of rows. An example scenario demonstrates using daily backups and restoring prior data by mounting backup images.

1. DATA Management
(BACKUP, RESTORE, MOUNT, and DELETE)
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2. Table of Contents
BACKUP Concept
BACKUP Command
RESTORE Command
DELETE Command
MOUNT Command
1
2
3
4
5
Example Scenario6

3. BACKUP Concept
3
DB
Create Backup Image
Table1 Table2 Table3 Table4 Table5
date1 date1 date1 date1 date1
date2 date2 date2 date2 date2
Backup target based on date
date3 date3 date3 date3 date3
date2 date2 date2 date2 date2
Restore recovery data
Backup file
Table1 Table2
Table3 Table4 Table5
InfiniFlux Storage Device
(Local disk/NFS/Cloud)
date2 date2
date2 date2 date2
• BACKUP stores all the images of time-based database as files.
• RESTORE allows to restore the images by using backup images when the original images were damaged.
• MOUNT creates “read only view” by using backup image.

4. BACKUP Command
4
• BACKUP DATABASE [FROM start_time TO end_time] INTO [DISK | IBFILE] = ‘backup_file_path'
• Backup database of a specified period of time, defined by ifluxsql, into the specified path ($IFLUX_HOME/dbs).
• When using an absolute path, backup data will be stored in the path.
• Backup the whole database
• Able to backup database as a directory or a single file
 Full backup of database on a specified date
 Backup the whole single file on a specified date
• Backup files will be created in the directory of “$IFLUX_HOME/dbs/2015-09-21”.
• Backup file “$IFLUX_HOME/dbs/2015-09-21_backup.ibf” will be created.
iFlux> BACKUP DATABASE
FROM TO_DATE(‘2015-09-21 00:00:00’, ‘YYYY-MM-DD HH24:MI:SS’)
TO TO_DATE(‘2015-09-21 23:59:59 999:999:999’, ‘YYYY-MM-DD HH24:MI:SS mmm:uuu:nnn’)
INTO DISK = ‘2015-09-21’;
iFlux> BACKUP DATABASE
FROM TO_DATE(‘2015-09-21 00:00:00’, ‘YYYY-MM-DD HH24:MI:SS’)
TO TO_DATE(‘2015-09-21 23:59:59 999:999:999’, ‘YYYY-MM-DD HH24:MI:SS mmm:uuu:nnn’)
INTO IBFILE = ‘2015-09-21_backup.ibf’;

5. RESTORE Command
5
• ifluxadmin –r ‘ backup_file_path’
• Update the data which is overlapped with backup image area, as database image
• If table doesn’t exist in the database, it will automatically be created.
 Restore the backup image database on a specified date
• Must stop the infiniFlux and delete the database before executing RESTORE command.
• Create a new database by using backup image.
 Read information of a single backup file
• Able to read information of a single backup file by using “ifluxadmin –w” command.
• Name of backup file, creation date, starting/ending point of backup, and version information of DB will be displayed.
$ ifluxadmin –k; /* Stop the database */
$ ifluxadmin –d; /* Delete the database */
$ ifluxadmin –r ‘2015-09-21’;
$ ifluxadmin –w ‘2015-09-21_backup.ibf’;

6. MOUNT Command
6
• [MOUNT | UNMOUNT] DATABASE ‘backup_file_path‘
• Create a table, exists in the backup image, as a read-only view in the current database.
• Able to use backup files immediately by running mount/unmount commands within a few seconds.
 Mount/unmount backup images on a specified date
 Mount/unmount backup images of a single file on a specified date
• Mount and unmount backup directory images of “$IFLUX_HOME/dbs/2015-09-21”.
• For the backup of single files, execute mount command after decompressing the files as directory format.
iFlux> MOUNT DATABASE ‘2015-09-21’;
iFlux> UNMOUNT DATABASE ‘2015-09-21’;
$ ifluxadmin –x ‘2015-09-21_backup.ibf’ ‘2015-09-21_extract’
iFlux> MOUNT DATABASE ‘2015-09-21_extract’;
iFlux> UNMOUNT DATABASE ‘2015-0-21_extract’;

7. MOUNT Command (cont’)
7
• Able to select mounted data through the virtual table “V$STORAGE_MOUNT_DATABASES”
 Select mounted data
Name of Column Description
NAME Name of mounted database
PATH Location of mounted database
BACKUP_TBSID Backup tablespace ID
BACKUP_SCN Unique ID of Backup
DB_BEGIN_TIME Start time of backup database
DB_END_TIME End time of backup database
BACKUP_BEGIN_TIME Start time of backup
BACKUP_END_TIME End time of backup
FLAG Attribute of flag
iFlux> SELECT * FROM V$STORAGE_MOUNT_DATABASES;

8. DELETE Command
8
• DELETE FROM TableName [ OLDEST | EXCEPT ] Number [Time Duration] ROWS;
• DELETE FROM TableName BEFORE datetime_expression;
• Impossible to delete data from a random record, but able to delete continuous records.
• Cannot be restored once the data is deleted.
 Deleting the oldest 100 records
 Deleting all the records except the latest 100 records
 Deleting all the records except for the records of 100 days from today
 Deleting all the records prior to September 22, 2015
iFlux> DELETE FROM t1 OLDEST 100 ROWS;
iFlux> DELETE FROM t1 EXCEPT 100 ROWS;
iFlux> DELETE FROM t1 EXCEPT 100 DAY;
iFlux> DELETE FROM t1 BEFORE TO_DATE(‘2015-09-22’, ‘YYYY-MM-DD’);

9. 데이터의 실시간 저장
Example Scenario
9
• 9/21/2015 Insert data
• 9/21/2015 Backup the database
• 9/21/2015 Delete all the prior data including Sep. 21, 2015
• 9/21/2015 Select data by mounting backup images
• 9/21/2015 Unmount backup images
• 9/22/2015 Insert data
• 9/22/2015 Backup the database
• 9/22/2015 Delete all the prior data including today
• 9/22/2015 Select data by mounting backup images
• 9/21/2015 Select data by mounting backup images
• 9/22/2015 Unmount backup images
• 9/21/2015 Unmount backup images
• Check backup files in the directory of “$IFLUX_HOME/dbs“.
 Daily backup and samples

10. www.infiniflux.com
info@infiniflux.com
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