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https://dev.mysql.com/doc/refman/8.4/en/security-options.html
The following table shows mysqld options and system variables that affect security. For descriptions of each of these, see Section 7.1.7, “Server Command Options”, and Section 7.1.8, “Server System Variables”.
https://dev.mysql.com/doc/refman/8.4/en/server-option-variable-reference.html
The following table lists all command-line options, system variables, and status variables applicable within mysqld. The table lists command-line options (Cmd-line), options valid in configuration files (Option file), server system variables ...
https://dev.mysql.com/doc/refman/8.4/en/stop-group-replication.html
To be completely safe, ensure that your applications can no longer connect to the instance before issuing this statement to avoid any chance of stale reads. This statement requires the GROUP_REPLICATION_ADMIN privilege (or the deprecated SUPER ...
https://dev.mysql.com/doc/refman/8.4/en/system-schema.html
server_cost, engine_cost: The optimizer cost model uses tables that contain cost estimate information about operations that occur during query execution. It contains tables that store information required by the MySQL server as it runs. A broad ...
https://dev.mysql.com/doc/refman/8.4/en/tracing-example.html
(Observe that it could have a match, were the operator a null-safe equals <=>). Now we can examine the trace, whose first column (QUERY), containing the original statement to be traced, is shown here: SELECT * FROM ...
https://dev.mysql.com/doc/refman/8.4/en/xa-statements.html
To perform XA transactions in MySQL, use the following statements: XA {START|BEGIN} xid [JOIN|RESUME] XA END xid [SUSPEND [FOR MIGRATE]] XA PREPARE xid XA COMMIT xid [ONE PHASE] XA ROLLBACK xid XA RECOVER [CONVERT XID] For XA START, the JOIN and ...
https://dev.mysql.com/doc/c-api/8.4/en/c-api-implementations.html
Before MySQL 5.5, these were built as thread-safe (re-entrant) libraries separately from the non-_r libraries. The MySQL C API is a C-based API that client applications written in C can use to communicate with MySQL Server. Client programs refer to ...
https://dev.mysql.com/doc/c-api/8.4/en/c-api-thread-function-reference.html
Table 8.1 C API Thread Functions Name Description mysql_thread_end() Finalize thread handler mysql_thread_init() Initialize thread handler mysql_thread_safe() Whether client is compiled thread-safe . The following table summarizes the functions ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-init.html
However, mysql_library_init() is not thread-safe in a multithreaded environment, and thus neither is mysql_init(). MYSQL * mysql_init(MYSQL *mysql) Description Allocates or initializes a MYSQL object suitable for mysql_real_connect(). If mysql is a ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-library-init.html
However, mysql_library_init() is not thread-safe in a multithreaded environment, and thus neither is mysql_init(), which calls mysql_library_init(). int mysql_library_init(int argc, char **argv, char **groups) Description Call this function to ...