or OPTIMIZE (-o) tables. Some of the options (like -e or -q) can be used at the same time. Not all options are supported by all storage engines. Please consult the MySQL manual for latest information about the above. The options -c, -r, -a, and -o are exclusive to each other...
So MySQL should have a standard way to check whether all is well. The original suggestion in WL#148 was: " CHECK TABLE --- It is not certain that "CHECK TABLE table_name FOREIGN KEYS" will be the syntax that we use. This requires an HLS change. Possibly we'd want "... CONSTRAINT...
This finds 99.999% of all errors. It first checks all index entries for errors and then reads through all rows. It calculates a checksum for all key values in the rows and verifies that the checksum matches the checksum for the keys in the index tree. ...
Changes are sometimes made to character sets or collations that require table indexes to be rebuilt. For details about such changes, see Section 2.11.3, “Changes in MySQL 5.7”. For information about rebuilding tables, seeSection 2.11.12, “Rebuilding or Repairing Tables or Indexes”. YEAR(2)...
利用percona-toolkit工具检查MySQL数据库主从复制数据的一致性,以及修复。 一、pt-table-checksum检查主从库数据的一致性 pt-table-checksum在MASTER上校验指定库、表,将结果存在一个库表里,复制进程将检验sql传递到slave上再执行一次。通过比较M/S的检验值确定数据是否一致。利用主从复制做检验,不需要在检验期间对主从数...
mysqlcheck 常用选项 A, –all-databases表示所有库 -a, –analyze分析表 -o, –optimize优化表 -r, –repair修复表错误 -c, –check检查表是否出错 –auto-repair自动修复损坏的表 -B, –databases选择多个库 -1, –all-in-1Use one query per database with tables listed in a comma separated way ...
shell>mysqlcheck[options]db_name[tables] shell>mysqlcheck[options] —databaseDB1[DB2DB3…] shell>mysqlcheck[options] –all–database 如果没有指定任何表或使用—database或–all–database选项,则检查整个数据库。 同其它客户端比较,mysqlcheck有一个特殊特性。重新命名二进制可以更改检查表的默认行为(–ch...
Each time you upgrade MySQL, you should execute mysql_upgrade, which looks for incompatibilities with the upgraded MySQL server: It upgrades the system tables in the mysql schema so that you can take advantage of new privileges or capabilities that might have been added. It upgrades the Per...
Note that MySQL 5.6 is not supported in Jira 8.12 and later. How to verify table collations 1 2 3 4 5 SELECT DISTINCT C.collation_name, T.table_name FROM information_schema.tables AS T, information_schema.`collation_character_set_applicability` AS C WHERE C.collation_name = T....
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 Ошибкавыскакиваетв adapter.Fill(table); (35 строка). ...