ibd grants

Mysql grants user permissions, mysql user permissions # Granting permissionsMySQL> grant permission parameter on database name. Table name to user name @ user address identified by 'user password '; # Permission to take effect immediatelyMySQL> flush privileges; Permission parameter: all and all privileges, indicating that all permissions are granted to the user. Permission parameters: select, insert, update, delete, create, drop, index, alter,

privileges or all, indicating that all permissions are granted to the user. When the database name. table name is replaced by *. *, it grants the user the permission to operate all the tables in the database on the server. The user address can be localhost, IP address, machine name, or domain name. You can also use '%' to connect from any address. The 'connection password' cannot be blank; otherwise, creation fails. For example: Mysql> grant se

privileges;Mysql> grant permission 1, permission 2 ,... Permission n on database name. Table name to user name @ user address identified by 'connection password ';Permission 1, permission 2 ,... Permission n indicates 14 permissions, including select, insert, update, delete, create, drop, index, alter, grant, references, reload, shutdown, process, and file.When permission 1, permission 2 ,... Permission n is replaced by all privileges or all, indicating that all permissions are granted to the u

ORACLE creates tablespaces, creates users, modifies user default tablespaces, and grants and views permissions. oracle Permissions Oracle creates users, tablespaces, imports and exports,... commands // Create a temporary tablespace Create temporary tablespace ext_tempTempfile 'd: \ oracle \ product \ 10.2.0 \ oradata \ test \ ext_temp.dbf'Size 32 mAutoextend onNext 32 m maxsize 2048 mExtent management local; // Create a data table spaceCreate tables

| SELECT STATEMENT | | 1 | 13 | 7 (0) | 00:00:01 || 1 | SORT AGGREGATE | | 1 | 13 | | ||* 2 | TABLE ACCESS full| T3 | 1 | 13 | 7 (0) | 00:00:01 |--------------------------------------------------------------------------- predicate information (identified by Operation ID):--------------------------------------------------- 2-filter ("ID" =1) note ----- -dynamic sampling used for this statement (level=2) -SQL plan Baseline "sql_plan_ghfucv736fsc114fae16c" used for this statement Statistic

When debugging the underlying software, the system may be suspended and unresponsive, and the forced blue screen on the keyboard is also invalid. In this case, hardware debugging is required. The JTAG debugging protocol is introduced in software debugging. This protocol is used for hardware debugger interfaces (UI/XDP. Taking windows as an example, windbg provides the exdi mode, that is, the connection debugging mode through the API. The procedure is as follows: Install windbg, install the

NULL,' Name ' varchar (DEFAULT NULL)) Engine=innodb DEFAULT Charset=utf8;Query OK, 0 rows affected (0.09 sec) Detach the table structure and spaceMysql> ALTER TABLE Yoon Discard tablespace;Query OK, 0 rows affected (0.02 sec) To transfer the IBD data file on Server A to the B serverSCP YOON.IBD 182.19.4.7:/export/data/mysql/data/yoon Modify PermissionsChown-r Mysql.mysql YOON.IBD Building relationships between table structure and spaceMysql> ALTER TA

Label:Without SSH channel, MySQL grants remote connection direct access Statement GRANT all privileges on * * to [email protected]'%'!dsjdg! ' Later revoke, wrong. There was an error in re-grant. Mysql> Grant all privileges on * * to [E- Mail protected]'% ' identified by '!dsjdg! ' with GRANT OPTION;ERROR 1045 (28000): Access denied for user ' root ' @ ' localhost ' (using Password:yes) ---------------------- Solution: Remove some Delete from user whe

Customer's machine system abnormal shutdown, after restarting the MySQL database does not start normally, after reloading the system found that the database file corruption, sad is that the customer database is not backed up in time, can only find ways to recover from the database files, find data, test various methods, confirm the following steps feasible:OneRetrieve the table structure if the table structure is not lost directly to the nextA, first create a database, this database must be no t

Tags: hot standby logging MyISAM ini next tab discard boot isThis article is transferred from othersMySQL is stored on disk, and all kinds of natural disasters can result in data loss. Large companies when we often need to do a good job of data hot and cold, for small companies to do all the data backup needs to spend a lot of costs, many companies are unrealistic. In case the backup is not done, the data has been mistakenly deleted, or ibdata damaged what to do? Don't worry, you can recover som

structure information. Second, retrieve data A. Set up a database to create a table based on the SQL run of the created table from the above export.B, locate the record point. The table space of the current database should be discarded first. Separates the current IBD data file from the frm. ALTER TABLE test DISCARD tablespace;c. Copy the. ibd files that you have previously recovered to the new table stru

] |+----------------+1 row in Set (0.00 sec)Mysql> show engines;+--------------------+---------+----------------------------------------------------------------+-------------- +------+------------+| Engine | Support | Comment | Transactions | XA | savepoints |+--------------------+---------+----------------------------------------------------------------+-------------- +------+------------+| Mrg_myisam | YES | Collection of identical MyISAM tables | NO | NO | NO || CSV | YES | CSV Storage Engine

session Alter system set Resource_limit=true scope=both sid= ' * '; //Use Resource_limit and profile to restrict user connectionsCreate profile User01_profile limit Sessions_per_user 1 failed_login_attempts unlimited; //Create a new user Profile:user01_profileAlter user User01 profile User01_profile; //change user User01 profile to User01_profileAlter profile user01_profile limit Sessions_per_user 2; //Limit user User01 number of connections to 2 When User01 has more than three access connectio

Sometimes MySQL does not do a good job of data backup, or by the data Administrator mistakenly deleted, or ibdata damage how do we recover? Don't be afraid, as long as there are some frm, IBD exists, the following is a resume tutorial. MySQL is stored in disk, all kinds of natural and man-made disasters will result in data loss. Large companies when we often need to do good data hot and cold preparation, for small companies to do all the data backup

Preface: With the popularization of InnoDB, Innobackup has become the mainstream backup way. Physical backup for the new slave, the need for a full library recovery can be easily addressed. But when the single table data mistakenly deleted, or a single table mistakenly drop, if the use of physical fully prepared to restore it? A detailed analysis is provided below. Tools to be used in the recovery process, Percona data recover Tool:https://launchpad.net/percona-innodb-recovery-tool situation

MySQL rolls back the insert statement, leading to a doubling of ibd files' MySQL rolls back the insert statement, which causes the ibd file to increase by a factor of one. A simple test: Start transaction;Insert into tb1 values (3, repeat ('A', 65000), 'x', 1 );-- Commit;Rollback; These are the sizes of files after tb1.ibd is inserted, before rollback, and aft

A simple test: starttransaction; insertintotb1values (3, repeat (#39; a #39;, 65000), #39; x #39;, 1); -- commit; rollback; these are the size of files after tb1.ibd is inserted, before rollback, and after Rollback: someone asked in the QQ group :... A simple test: Start transaction; Insert into tb1 values (3, repeat ('A', 65000), 'X', 1 ); -- Commit; Rollback; These are the sizes of files after tb1.ibd