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https://dev.mysql.com/doc/refman/8.0/en/stored-routines-last-insert-id.html
For stored functions and triggers that change the value, the value is restored when the function or trigger ends, so following statements do not see a changed value. Within the body of a stored routine (procedure or function) or a trigger, the ...
https://dev.mysql.com/doc/refman/8.0/en/sys-memory-by-thread-by-current-bytes.html
The memory_by_thread_by_current_bytes and x$memory_by_thread_by_current_bytes views have these columns: thread_id The thread ID. By default, rows are sorted by descending amount of memory used. current_count_used The current number of allocated ...
https://dev.mysql.com/doc/refman/8.0/en/sys-memory-global-by-current-bytes.html
The memory_global_by_current_bytes and x$memory_global_by_current_bytes views have these columns: event_name The memory event name. These views summarize memory use, grouped by allocation type (that is, by event). By default, rows are sorted by ...
https://dev.mysql.com/doc/refman/8.0/en/sys-memory-global-total.html
The memory_global_total and x$memory_global_total views have these columns: total_allocated The total bytes of memory allocated within the server.
https://dev.mysql.com/doc/refman/8.0/en/sys-schema-tables.html
The following sections describe sys schema tables and triggers. ...
https://dev.mysql.com/doc/refman/8.0/en/batch-mode.html
In the previous sections, you used mysql interactively to enter statements and view the results. If you want the script to continue even if some of the statements in it produce errors, you should use the --force command-line option. Why use a ...
https://dev.mysql.com/doc/refman/8.0/en/compiling-for-debugging.html
In this case, you can try to add -g using the CMAKE_C_FLAGS and CMAKE_CXX_FLAGS CMake options and not use -DWITH_DEBUG=1. If they find something “unexpected,” an entry is written to stderr, which mysqld_safe directs to the error log! This also ... If you have some very specific problem, you can always try to debug ...
https://dev.mysql.com/doc/refman/8.0/en/corrupted-myisam-tables.html
You are using an external program (such as myisamchk) to modify a table that is being modified by the server at the same time. You can check the health of a MyISAM table using the CHECK TABLE statement, and repair a corrupted MyISAM table with ...
https://dev.mysql.com/doc/refman/8.0/en/debugging-server.html
If mysqld does not want to start, verify that you have no my.cnf files that interfere with your setup! You can check your my.cnf arguments with mysqld --print-defaults and avoid using them by starting with mysqld --no-defaults .... If mysqld starts ... If you are using some functionality that is very new in MySQL, you can try to run mysqld with the --skip-new option (which disables all new, potentially unsafe ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-session-temp-tablespaces-table.html
The INNODB_SESSION_TEMP_TABLESPACES table provides metadata about session temporary tablespaces used for internal and user-created temporary tables. A range of 400 thousand space IDs is reserved for session temporary tablespaces. Session temporary ...The INNODB_SESSION_TEMP_TABLESPACES table has these columns: ID The process or session ...