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https://dev.mysql.com/doc/c-api/8.4/en/mysql-error.html
const char * mysql_error(MYSQL *mysql) Description For the connection specified by mysql, mysql_error() returns a null-terminated string containing the error message for the most recently invoked API function that failed. If a function did not ...
https://dev.mysql.com/doc/refman/8.4/en/comp-err.html
comp_err creates the errmsg.sys file that is used by mysqld to determine the error messages to display for different error codes. It compiles the errmsg.sys file from text-format error information in MySQL source distributions: The error ...Invoke ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-stmt-error.html
const char * mysql_stmt_error(MYSQL_STMT *stmt) Description For the statement specified by stmt, mysql_stmt_error() returns a null-terminated string containing the error message for the most recently invoked statement API function that can succeed ...
https://dev.mysql.com/doc/refman/8.4/en/not-enough-file-handles.html
If you get ERROR 'file_name' not found (errno: 23), Can't open file: file_name (errno: 24), or any other error with errno 23 or errno 24 from MySQL, it means that you have not allocated enough file descriptors for the MySQL server. You can either ...
https://dev.mysql.com/doc/refman/8.4/en/error-lost-connection.html
Usually it indicates network connectivity trouble and you should check the condition of your network if this error occurs frequently. If the error message includes “during query,” this is probably the case you are experiencing. You may see ...
https://dev.mysql.com/doc/refman/8.4/en/myisam-check.html
To check a MyISAM table, use the following commands: myisamchk tbl_name This finds 99.99% of all errors. It first checks all index entries for errors and then reads through all rows. This causes myisamchk to keep going, up through a maximum of 20 ...What it cannot find is corruption that involves only the data file (which is very ...
https://dev.mysql.com/doc/refman/8.4/en/sys-statements-with-errors-or-warnings.html
These views display normalized statements that have produced errors or warnings. By default, rows are sorted by descending error and warning counts. The statements_with_errors_or_warnings and x$statements_with_errors_or_warnings views have these ...
https://dev.mysql.com/doc/refman/8.4/en/using-log-files.html
If you find the text mysqld restarted in the error log (normally a file named host_name.err) you probably have found a query that causes mysqld to fail. If you get a lot of these errors, without mysqld having died unexpectedly just before, then ...
https://dev.mysql.com/doc/mysql-errors/8.4/en/index.html
It lists all error messages produced by server and client programs in MySQL 8.4. This document accompanies Error Messages and Common Problems, in MySQL 8.4 Reference Manual. For help with using MySQL, please visit the MySQL Forums, where you can ...
https://dev.mysql.com/doc/internals/en/use-of-disable-abort-on-error.html
This option is very useful when starting to write a new test because the test will not abort if your script contains some failing statements or SQL syntax errors. By disabling the abort, you get to see more of the errors per test run and can fix ...