ibd grants

' test1 ' (' product_id ' varchar (not NULL),' param ' int (one) DEFAULT NULL,' Create_time ' int (one) DEFAULT NULL,PRIMARY KEY (' product_id '),KEY ' I_create_time ' (' Create_time '),KEY ' I_product_create_time ' (' product_id ', ' create_time '),KEY ' I_param ' (' param ')) Engine=innodb DEFAULT Charset=utf8; View table-related files: Shell > ll/data/mysql3306/xiaoboluo/test1*-RW-RW----1 mysql mysql 8648 January 7 09:31/data/mysql3306/xiaoboluo/test1.frm-RW-RW----1 mysql mysql 147456 Januar

Sec) // View files in the database directory [Root @ localhost TG] # ll Total usage 544 -RW ----. 1 MySQL 65 December 31 22:48 dB. Opt -RW ----. 1 MySQL 8658 December 31 22:49 GB. FRM -RW ----. 1 MySQL 98304 December 31 22:49 GB. IBD -RW ----. 1 MySQL 8658 December 31 22:49 QR. FRM -RW ----. 1 MySQL 98304 December 31 22:49 QR. IBD -RW ----. 1 MySQL 8658 December 31 22:49 QY. FRM -RW ----. 1 MyS

be configured through the innodb_read_ahead_threshold parameter, 56 by default), InnoDB can read an extent (64 consecutive pages, if not compressed, each page is 1 MB ). However, it is of little significance to do so. An extent (64 pages) is very small. For a large database table, the next page is not necessarily in the same extent. The above is a good example. After reading page #3, InnoDB needs to read page #5230. Page #3 and page #5230 are not in the same extent, so linear pre-read technolog

temporary table(This process is not sorted) After the copy is completed, the read operation of the original table is disabled, that is, the original table does not provide the read/write service at this time. Perform the rename operation to complete the DDL Process Inplace method (fast index creation, only for index creation and deletion) Create a temporary frm File Lock the original table. DML is not allowed and query is allowed. Query the data in the order of clustered i

! 140920 19:34:27 [Note] innodb:starting crash recovery. 140920 19:34:27 [Note] innodb:reading tablespace information from the. ibd files ... 2014-09-20 19:34:27 EC4 innodb:operating system error number 2 in a file operation. Innodb:some Operating system error numbers is described at Innodb:http://dev.mysql.com/doc/refman/5.6/en/operating-system-error-codes.html InnoDB:Error:could not open single-table tablespace file. \dota2\data_ab

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forward operations.Test ADestroy XBB5.IBD tableThe data page was deletedInnodb_force_recovery = 1-3 Table Unavailable report error 2002 (HY000): Can ' t connect to local MySQL server through socket '/TMP/MYSQLD.SOC K ' Error innodb_force_recovery = 4-6 SELECT * Available, select COUNT (*) No lack of report error (HY000): Lost connection to MySQL server Duri ng Query ErrorTest TwoCreate transaction, do not commit[Email protected] 04:32:32>begin; Query

You can use create user or grant to create a user, which is also assigned relevant permissions. Revoke is used to delete user permissions and drop user to delete accounts. $ Mysql-u root-ppassword: mysql> Create Database test; # create database query OK, 1 row affected (0.00 Sec) mysql> show databases; # Check whether the database is successfully created + ------------------ + | database | + -------------------- + | information_schema | MySQL | test | + ------------------ + 3 rows in SET (0.00 S

Http://www.rainsts.net/article.asp? Id = 988 You can use create user or grant to create a user, which is also assigned relevant permissions. Revoke is used to delete user permissions and drop user to delete accounts. $ Mysql-u root-ppassword: mysql> Create Database test; # create database query OK, 1 row affected (0.00 Sec) mysql> show databases; # Check whether the database is successfully created + ------------------ + | database | + -------------------- + | information_schema | MySQL | test |

TestDB to [e-mail protected] ' 192.168.0.10 ' identified by ' dbapasswd ';OrGrant all on TestDB to [e-mail protected] ' 192.168.0.10 ' identified by ' dbapasswd ';//Open Manage permissions for database-specific tables (testdb.table1) in MySQLGrant all on Testdb.teable1 to [e-mail protected] ' 192.168.0.10 ' identified by ' dbapasswd ';//Open Manage permissions for partial columns of a database-specific table (testdb.table1) in MySQLGrant Select (ID, SE, rank) on Testdb.table1 to [e-mail protect

be granted permissions# # # requires Administrator Authorization # # #Grant Create session to starive;//Grant starive user permission to create session, that is, login permission# # # tablespace # #Grant Unlimited tablespace to starive;//grants starive users permission to use tablespacesGrant create tablespace to starive;//Grant starive permission to create a tablespaceGrant drop tablespace to starive;//grants