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https://dev.mysql.com/doc/refman/9.7/en/prepare.html
PREPARE stmt_name FROM preparable_stmt The PREPARE statement prepares a SQL statement and assigns it a name, stmt_name, by which to refer to the statement later. The prepared statement is executed with EXECUTE and released with DEALLOCATE PREPARE.
https://dev.mysql.com/doc/refman/9.7/en/primary-key-optimization.html
The primary key for a table represents the column or set of columns that you use in your most vital queries. Query performance benefits from the NOT NULL optimization, because it cannot include any NULL values. With the InnoDB storage engine, the ...
https://dev.mysql.com/doc/refman/9.7/en/processlist-access.html
The following discussion enumerates the sources of process information, the privileges required to see process information, and describes the content of process list entries. The other sources have negative performance consequences because they ...
https://dev.mysql.com/doc/refman/9.7/en/proxy-users.html
The plugin that authenticates a given connection may request that the connecting (external) user be treated as a different user for privilege-checking purposes. This enables the external user to be a proxy for the second user; that is, to assume the ...
https://dev.mysql.com/doc/refman/9.7/en/replication-options-binary-log.html
Startup Options Used with Binary Logging System Variables Used with Binary Logging You can use the mysqld options and system variables that are described in this section to affect the operation of the binary log as well as to control which ...
https://dev.mysql.com/doc/refman/9.7/en/rewriter-query-rewrite-plugin-reference.html
Users communicate with the plugin by modifying the set of rules stored in this table. The plugin communicates information to users by setting the table's message column. Note The rules table is loaded into the plugin by the flush_rewrite_rules ...
https://dev.mysql.com/doc/refman/9.7/en/select-into.html
INTO form of SELECT enables a query result to be stored in variables or written to a file: SELECT ... Column and line terminators can be specified to produce a specific output format. INTO DUMPFILE writes a single row to a file without any ...
https://dev.mysql.com/doc/refman/9.7/en/srjs-libraries.html
This section provides information about and examples of use of JavaScript libraries in JavaScript stored programs as supported by the Multilingual Engine (MLE) in MySQL Enterprise Edition. First we create a database jslib, and make it the current ...
https://dev.mysql.com/doc/refman/9.7/en/srjsapi-mysql.html
The following SQL built-in functions can be called directly from the mysql namespace. These are described in the following list, along with their analogous SQL functions: rand() (MySQL RAND()): Returns a random floating-point value v in the range 0 ...
https://dev.mysql.com/doc/refman/9.7/en/storage-engines.html
Storage engines are MySQL components that handle the SQL operations for different table types. InnoDB is the default and most general-purpose storage engine, and Oracle recommends using it for tables except for specialized use cases. (The CREATE ...