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https://dev.mysql.com/doc/refman/8.0/en/create-spatial-reference-system.html
If an SRS definition specifies an authority code for the projection (which is recommended), an error occurs if the definition is missing mandatory parameters. SRID values must be unique, so if neither OR REPLACE nor IF NOT EXISTS is specified, an ...
https://dev.mysql.com/doc/refman/8.0/en/charset-gb18030.html
In MySQL, the gb18030 character set corresponds to the “Chinese National Standard GB 18030-2005: Information technology — Chinese coded character set”, which is the official character set of the People's Republic of China (PRC). Supports ...
https://dev.mysql.com/doc/refman/8.0/en/replication-options-replica.html
--slave-skip-errors=[err_code1,err_code2,...|all|ddl_exist_errors] Command-Line Format --slave-skip-errors=name Deprecated Yes System Variable slave_skip_errors Scope Global Dynamic No SET_VAR Hint Applies No Type String Default Value OFF Valid ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-nutshell.html
The following server error codes are not used and have been removed. Now, each statement is transactional and either succeeds for all named users or rolls back and has no effect if any error occurs. If ALGORITHM=INSTANT is specified but not ... This ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-logs-cluster-log.html
[Occurred during startphase start_phase.] [ Initiated by signal.] [Caused by error error_code: 'error_message(error_classification). In the event of arbitration failure, an error_message and an arbitration state_code are provided; definitions for ...
https://dev.mysql.com/doc/refman/8.0/en/server-configuration-validation.html
As of MySQL 8.0.16, MySQL Server supports a --validate-config option that enables the startup configuration to be checked for problems without running the server in normal operational mode: mysqld --validate-config If no errors are found, the ...
https://dev.mysql.com/doc/refman/8.0/en/show-warnings.html
SHOW WARNINGS [LIMIT [offset,] row_count] SHOW COUNT(*) WARNINGS SHOW WARNINGS is a diagnostic statement that displays information about the conditions (errors, warnings, and notes) resulting from executing a statement in the current session. If ...
https://dev.mysql.com/doc/refman/8.0/en/server-status-variables.html
For additional connection-related information, check the Connection_errors_xxx status variables and the host_cache table. All Com_stmt_xxx variables are increased even if a prepared statement argument is unknown or an error occurred during execution. Connection_errors_xxx These variables provide information about errors that occur during the client connection ...
https://dev.mysql.com/doc/refman/8.0/en/replication-solutions-scaleout.html
Figure 19.1 Using Replication to Improve Performance During Scale-Out If the part of your code that is responsible for database access has been properly abstracted/modularized, converting it to run with a replicated setup should be very smooth and ... You can use replication as a scale-out solution; that is, where you want to split up the load of database queries across multiple database servers, within some reasonable ...
https://dev.mysql.com/doc/refman/8.0/en/charset-cp932.html
For example, “SHIFT JIS” used in Japanese Windows environments is a Microsoft extension of Shift_JIS and its exact name is Microsoft Windows Codepage : 932 or cp932. There are several conversion rules from so-called “SHIFT JIS” to Unicode, ... Why is cp932 needed? In MySQL, the sjis character set corresponds to the Shift_JIS character set defined by IANA, which supports JIS X0201 and JIS X0208 ...