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https://dev.mysql.com/doc/refman/9.7/en/replication-solutions-diffengines.html
If you are already running a replication solution and want to convert your existing tables to another engine type, follow these steps: Stop the replica from running replication updates: mysql> STOP REPLICA; This makes it possible to change engine ...
https://dev.mysql.com/doc/refman/9.7/en/server-options.html
For a given buffer, the server might need to allocate internal data structures. --basedir=dir_name, -b dir_name Command-Line Format --basedir=dir_name System Variable basedir Scope Global Dynamic No SET_VAR Hint Applies No Type Directory name ...
https://dev.mysql.com/doc/refman/9.7/en/session-state-tracking.html
(To change sessions in a load-balanced environment, it is necessary to detect whether there is session state to take into consideration when deciding whether a switch can be made.) The tracker mechanism permits applications to know when transactions ...A client can enable these trackers to receive notification of changes to its session ...
https://dev.mysql.com/doc/refman/9.7/en/set-variable.html
The following procedure uses the increment procedure parameter and counter local variable: CREATE PROCEDURE p(increment INT) BEGIN DECLARE counter INT DEFAULT 0; WHILE counter < 10 DO -- ... SET counter = counter + increment; END WHILE; END; System ...variable: { user_var_name | param_name | local_var_name | {GLOBAL | @@GLOBAL.} system_var_name | {PERSIST | @@PERSIST.} system_var_name | {PERSIST_ONLY | @@PERSIST_ONLY.} system_var_name | [SESSION | ...
https://dev.mysql.com/doc/refman/9.7/en/show-columns.html
These two statements are equivalent: SHOW COLUMNS FROM mytable FROM mydb; SHOW COLUMNS FROM mydb.mytable; The optional EXTENDED keyword causes the output to include information about hidden columns that MySQL uses internally and are not accessible ... SHOW [EXTENDED] [FULL] {COLUMNS | FIELDS} {FROM | IN} tbl_name [{FROM | IN} db_name] [LIKE 'pattern' | WHERE expr] SHOW COLUMNS displays information about the columns in a given ...
https://dev.mysql.com/doc/refman/9.7/en/show-profile.html
If LIMIT is given, OFFSET offset may be added to begin the output offset rows into the full set of rows. The Status values are like the State values displayed by SHOW PROCESSLIST, although there might be some minor differences in interpretation for ...Note The SHOW PROFILE and SHOW PROFILES statements are deprecated; expect them to be removed in a future MySQL ...
https://dev.mysql.com/doc/refman/9.7/en/srjs-limitations.html
MySQL JavaScript stored programs are subject to the limitations and restrictions described in this section. The Global object and the globalThis object property are supported, but their scope is limited to that of the current routine. For example, ...
https://dev.mysql.com/doc/refman/9.7/en/srjsapi-session.html
sql(String sql, {passResultToClient: Bool, charsetName: String, integerType: IntegerType, decimalType: DecimalType}): Executes a simple SQL statement. IntegerType consists of a JSON key-value pair whose key is IntegerType, and whose possible values ... The Session object is always available as the session property of the global ...
https://dev.mysql.com/doc/refman/9.7/en/storage-requirements.html
Despite differences in storage layout on disk, the internal MySQL APIs that communicate and exchange information about table rows use a consistent data structure that applies across all storage engines. This section includes guidelines and ...
https://dev.mysql.com/doc/refman/9.7/en/stored-programs-defining.html
This enables the ; delimiter used in the procedure body to be passed through to the server rather than being interpreted by mysql itself. Each stored program contains a body that consists of an SQL statement. This statement may be a compound ...