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https://dev.mysql.com/doc/refman/8.4/en/json-attribute-functions.html
The functions in this section return attributes of JSON values. An error occurs if the argument is not a valid JSON document. An empty array, empty object, or scalar value has depth 1. A nonempty array containing only elements of depth 1 or ...
https://dev.mysql.com/doc/refman/8.4/en/keywords.html
Certain keywords, such as SELECT, DELETE, or BIGINT, are reserved and require special treatment for use as identifiers such as table and column names. This may also be true for the names of built-in functions. Some keywords which are otherwise ...
https://dev.mysql.com/doc/refman/8.4/en/locking-service.html
MySQL distributions provide a locking interface that is accessible at two levels: At the SQL level, as a set of loadable functions that each map onto calls to the service routines. As a C language interface, callable as a plugin service from server ...
https://dev.mysql.com/doc/refman/8.4/en/myisamchk-table-info.html
To obtain a description of a MyISAM table or statistics about it, use the commands shown here. The output from these commands is explained later in this section. myisamchk -d tbl_name Runs myisamchk in “describe mode” to produce a description ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-restore.html
The NDB Cluster restoration program is implemented as a separate command-line utility ndb_restore, which can normally be found in the MySQL bin directory. This program reads the files created as a result of the backup and inserts the stored ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-quick-start.html
This section briefly introduces the Performance Schema with examples that show how to use it. For additional examples, see Section 29.19, “Using the Performance Schema to Diagnose Problems”. To enable or disable it explicitly, start the server ...
https://dev.mysql.com/doc/refman/8.4/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/8.4/en/string-types.html
The string data types are CHAR, VARCHAR, BINARY, VARBINARY, BLOB, TEXT, ENUM, and SET. For information about storage requirements of the string data types, see Section 13.7, “Data Type Storage Requirements”. For descriptions of functions that ...
https://dev.mysql.com/doc/refman/8.4/en/sys-diagnostics.html
Creates a report of the current server status for diagnostic purposes. This procedure disables binary logging during its execution by manipulating the session value of the sql_log_bin system variable. That is a restricted operation, so the ...
https://dev.mysql.com/doc/refman/8.4/en/sys-ps-is-account-enabled.html
Returns YES or NO to indicate whether Performance Schema instrumentation for a given account is enabled. Parameters in_host VARCHAR(60): The host name of the account to check. Example mysql> SELECT sys.ps_is_account_enabled('localhost', 'root'); ...