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https://dev.mysql.com/doc/refman/8.0/en/myisam-table-formats.html
When you use CREATE TABLE or ALTER TABLE for a table that has no BLOB or TEXT columns, you can force the table format to FIXED or DYNAMIC with the ROW_FORMAT table option. The third, compressed format, can be created only with the myisampack utility ...Two of them, fixed and dynamic format, are chosen automatically depending on the type of columns you are ...
https://dev.mysql.com/doc/refman/8.0/en/commit.html
To disable autocommit mode implicitly for a single series of statements, use the START TRANSACTION statement: START TRANSACTION; SELECT @A:=SUM(salary) FROM table1 WHERE type=1; UPDATE table2 SET summary=@A WHERE type=1; COMMIT; With START ...SET ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-locking-reads.html
However, FOR SHARE supports OF table_name, NOWAIT, and SKIP LOCKED options. FOR SHARE requires the SELECT privilege and at least one of the DELETE, LOCK TABLES, or UPDATE privileges. FOR SHARE statements do not acquire read locks on MySQL grant ...
https://dev.mysql.com/doc/refman/8.0/en/timestamp-initialization.html
For any TIMESTAMP or DATETIME column in a table, you can assign the current timestamp as the default value, the auto-update value, or both: An auto-initialized column is set to the current timestamp for inserted rows that specify no value for the ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-processlist-table.html
As such, the implementation of SHOW PROCESSLIST which uses this table is also deprecated. For a comparison of this table with other sources, see Sources of Process Information. This is the same value displayed in the Id column of the SHOW ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-triggers-table.html
To see information about a table's triggers, you must have the TRIGGER privilege for the table. The TRIGGERS table has these columns: TRIGGER_CATALOG The name of the catalog to which the trigger belongs. This is the type of operation on the ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-javascript-table-delete.html
You can use the delete() method to remove some or all records from a table in a database. All records matching the condition are deleted from the city table. mysql-js> db.city.delete().where("Name = 'Olympia'") Delete the First Record To delete the ...The X DevAPI provides additional methods to use with the delete() method to filter and order the records to be ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-python-table-delete.html
You can use the delete() method to remove some or all records from a table in a database. All records matching the condition are deleted from the city table. mysql-py> db.city.delete().where("Name = 'Olympia'") Delete the First Record To delete the ...The X DevAPI provides additional methods to use with the delete() method to filter and order the records to be ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-accounts-table.html
The accounts table contains a row for each account that has connected to the MySQL server. For each account, the table counts the current and total number of connections. To set the table size explicitly, set the performance_schema_accounts_size ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-hosts-table.html
The hosts table contains a row for each host from which clients have connected to the MySQL server. For each host name, the table counts the current and total number of connections. To set the table size explicitly, set the ...This is NULL for an ...