Where Table Data Is Stored by the MyISAM Storage Engine

Q

Where Table Data Is Stored by the MyISAM Storage Engine? - MySQL FAQs - Storage Engines: MyISAM, InnoDB and BDB

✍: FYIcenter.com

A

By default, MySQL provides \mysql\data directory for all storage engines to store table data. Under \mysql\data directory, each database will have its own subdirectory to store table data.

If a new table is created with the MyISAM storage engine, several files will be created. For example, the new table "fyi_isam" created in the previous tutorial exercise will result the following files:

>cd \mysql\data\fyi

>dir
   8,620 fyi_isam.frm
       0 fyi_isam.MYD
   1,024 fyi_isam.MYI
...

These files are:

fyi_isam.frm - Created by MySQL to store "fyi_isam" table format.
fyi_isam.myd - Created by MyISAM to store "fyi_isam" table data. "myd" stands for "MyData". The data file size is 0, because there is no data row stored in the table yet.
fyi_isam.myi - Created by MyISAM to store "fyi_isam" table index. "myi" stands for "MyIndex". The primary key column "id" is indexed by default.

2007-05-10, 5087👍, 0💬

Where Are User Privileges Stored on the Server
Where Are User Privileges Stored on the Server? - MySQL FAQs - Managing User Accounts and Access Privileges MySQL server has a system database, which hosts a number of system tables to system related information like user privileges. Depending on the scope levels, granted user privileges are stored ... 2007-05-08, 5688👍, 0💬

How To Revoke User Privileges
How To Revoke User Privileges? - MySQL FAQs - Managing User Accounts and Access Privileges If your want remove some granted user privileges, you can use the "REVOKE privilegeName ..." command. You can only revoke privileges in the same way as they were granted. For example, you can not revoke a priv... 2007-05-08, 5682👍, 0💬

What Are Storage Engines
What Are Storage Engines? - MySQL FAQs - Storage Engines: MyISAM, InnoDB and BDB Storage engines are programs that are integrated into MySQL database management system to manage data tables. MySQL 5.0 supports the following major storage engines: MyISAM Storage Engine - MySQL default storage engine.... 2007-05-10, 5288👍, 0💬

How To Create a New Table Using the InnoDB Storage Engine
How To Create a New Table Using the InnoDB Storage Engine? - MySQL FAQs - Storage Engines: MyISAM, InnoDB and BDB InnoDB storage engine was developed by Innobase Oy, which is an Oracle company now. InnoDB is transaction safe, and has been used by a number of large Websites, like Slashdot.org. InnoDB... 2007-05-10, 5206👍, 0💬

How To Backup Tables by Copying MyISAM Table Files
How To Backup Tables by Copying MyISAM Table Files? - MySQL FAQs - Storage Engines: MyISAM, InnoDB and BDB To easiest way to backup MyISAM tables is to copy the data files to a backup directory. But this is not the recommended way to do backups. Read the backup FAQ collections for more details. The ... 2007-05-10, 5145👍, 0💬

How To Restore Tables by Copying MyISAM Table Files
How To Restore Tables by Copying MyISAM Table Files? - MySQL FAQs - Storage Engines: MyISAM, InnoDB and BDB If you have old copies of MyISAM table files, you can restore them easily by copying them back to the data directory to replace the current table files. However you may need to shutdown MySQL ... 2007-05-10, 5133👍, 0💬

Where Table Data Is Stored by the MyISAM Storage Engine
Where Table Data Is Stored by the MyISAM Storage Engine? - MySQL FAQs - Storage Engines: MyISAM, InnoDB and BDB By default, MySQL provides \mysql\data directory for all storage engines to store table data. Under \mysql\data directory, each database will have its own subdirectory to store table data.... 2007-05-10, 5088👍, 0💬

How To Check and Repair MyISAM Tables
How To Check and Repair MyISAM Tables? - MySQL FAQs - Storage Engines: MyISAM, InnoDB and BDB If you have a corrupted MyISAM table, like the one resulted from the previous tutorial exercise, you can use the "CHECK TABLE" and "REPAIR TABLE" commands to try to repair it. The following tutorial exercis... 2007-05-10, 5086👍, 0💬

How To Create a New Table Using MyISAM Storage Engine
How To Create a New Table Using MyISAM Storage Engine? - MySQL FAQs - Storage Engines: MyISAM, InnoDB and BDB MyISAM storage engine is based on the ISAM (Indexed Sequential Access Method) concept, which was first developed at IBM to store and retrieve data on secondary storage systems like tapes. My... 2007-05-10, 5039👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.