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https://dev.mysql.com/doc/refman/8.0/en/program-variables.html
Many MySQL programs have internal variables that can be set at runtime using the SET statement. See Section 15.7.6.1, “SET Syntax for Variable Assignment”, and Section 7.1.9, “Using System Variables”. Most of these program variables also ...
https://dev.mysql.com/doc/refman/8.0/en/regexp.html
This section discusses the functions and operators available for regular expression matching and illustrates, with examples, some of the special characters and constructs that can be used for regular expression operations. MySQL implements regular ...
https://dev.mysql.com/doc/refman/8.0/en/replica-logs-status.html
A replica server creates two replication metadata repositories, the connection metadata repository and the applier metadata repository. If binary log file position based replication is in use, when the replica restarts, it reads the two ...
https://dev.mysql.com/doc/refman/8.0/en/replication-rbr-safe-unsafe.html
The “safeness” of a statement in MySQL replication refers to whether the statement and its effects can be replicated correctly using statement-based format. If this is true of the statement, we refer to the statement as safe; otherwise, we ...
https://dev.mysql.com/doc/refman/8.0/en/set.html
A SET is a string object that can have zero or more values, each of which must be chosen from a list of permitted values specified when the table is created. SET column values that consist of multiple set members are specified with members ...
https://dev.mysql.com/doc/refman/8.0/en/show-processlist.html
SHOW [FULL] PROCESSLIST Important The INFORMATION SCHEMA implementation of SHOW PROCESSLIST is deprecated and subject to removal in a future MySQL release. It is recommended to use the Performance Schema implementation of SHOW PROCESSLIST instead.
https://dev.mysql.com/doc/refman/8.0/en/atomic-ddl.html
An atomic DDL statement combines the data dictionary updates, storage engine operations, and binary log writes associated with a DDL operation into a single, atomic operation. The operation is either committed, with applicable changes persisted to ...
https://dev.mysql.com/doc/refman/8.0/en/audit-log-file-formats.html
The MySQL server calls the audit log plugin to write an audit record to its log file whenever an auditable event occurs. Typically the first audit record written after plugin startup contains the server description and startup options. Elements ...
https://dev.mysql.com/doc/refman/8.0/en/can-not-connect-to-server.html
A MySQL client on Unix can connect to the mysqld server in two different ways: By using a Unix socket file to connect through a file in the file system (default /tmp/mysql.sock), or by using TCP/IP, which connects through a port number. A Unix ...
https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html
Table 14.15 Cast Functions and Operators Name Description Deprecated BINARY Cast a string to a binary string Yes CAST() Cast a value as a certain type CONVERT() Cast a value as a certain type Cast functions and operators enable conversion of values ...