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https://dev.mysql.com/doc/refman/8.0/en/error-log-format.html
Each error log sink (writer) component has a characteristic output format it uses to write messages to its destination, but other factors may influence the content of the messages: The information available to the log sink. For information about ...
https://dev.mysql.com/doc/refman/8.0/en/error-handling.html
This appendix describes the types of error information MySQL provides and how to obtain information about them. It describes common problems and errors that may occur and potential resolutions.
https://dev.mysql.com/doc/refman/8.0/en/error-message-language.html
By default, mysqld produces error messages in English, but they can be displayed instead in any of several other languages: Czech, Danish, Dutch, Estonian, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Norwegian-ny, ...By ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-filtering.html
For error log filtering, MySQL offers a choice of components: log_filter_internal: This filter component provides error log filtering based on log event priority and error code, in combination with the log_error_verbosity and ... Error log ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-cjk.html
Why do I get Incorrect string value error messages? To see the problem, create a table with one Unicode (ucs2) column and one Chinese (gb2312) column. Please check these references before reporting gb2312 or gbk bugs: The MySQL gbk character set is ... This set of Frequently Asked Questions derives from the experience of MySQL's Support and Development groups in handling many inquiries about CJK (Chinese-Japanese-Korean) ...
https://dev.mysql.com/doc/refman/8.0/en/error-log.html
This section discusses how to configure the MySQL server for logging of diagnostic messages to the error log. For information about selecting the error message character set and language, see Section 12.6, “Error Message Character Set”, and ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-syslog.html
It is possible to have mysqld write the error log to the system log (the Event Log on Windows, and syslog on Unix and Unix-like systems). This section describes how to configure error logging using the built-in filter, log_filter_internal, and the ...Event Log entries have a source of MySQL (or MySQL-tag if syseventlog.tag is defined as ...
https://dev.mysql.com/doc/refman/8.0/en/show-errors.html
SHOW ERRORS [LIMIT [offset,] row_count] SHOW COUNT(*) ERRORS SHOW ERRORS is a diagnostic statement that is similar to SHOW WARNINGS, except that it displays information only for errors, rather than for errors, warnings, and notes. You can also ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-error-handling.html
Other errors are mostly detected by the MySQL layer of code (above the InnoDB storage engine level), and they roll back the corresponding SQL statement. If you run out of file space in a tablespace, a MySQL Table is full error occurs and InnoDB ...
https://dev.mysql.com/doc/refman/8.0/en/subquery-errors.html
Incorrect number of rows from subquery: ERROR 1242 (ER_SUBSELECT_NO_1_ROW) SQLSTATE = 21000 Message = "Subquery returns more than 1 row" This error occurs for statements where the subquery must return at most one row but returns multiple rows. If ...