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https://dev.mysql.com/doc/refman/8.0/en/drop-function-loadable.html
It requires the DELETE privilege for the mysql system schema because it removes the row from the mysql.func system table that registers the function. Because DROP FUNCTION removes the mysql.func row for the dropped function, the server does not load ... DROP FUNCTION [IF EXISTS] function_name This statement drops the loadable function named ...
https://dev.mysql.com/doc/refman/8.0/en/execution-plan-information.html
A query on a huge table can be performed without reading all the rows; a join involving several tables can be performed without comparing every combination of rows. Depending on the details of your tables, columns, indexes, and the conditions in ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-general.html
A multiple-table insert can be accomplished using a trigger whose FOR EACH ROW clause contains multiple INSERT statements within a BEGIN ... The InnoDB storage engine offers full ACID transactions with row-level locking, multi-versioning, nonlocking ...Why did MySQL version numbering skip versions 6 and 7 and go straight to 8.0? ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-change-primary.html
row *************************** EVENT_NAME: stage/group_rpl/Primary Election: Waiting for members to turn on super_read_only WORK_COMPLETED: 3 WORK_ESTIMATED: 5 . This section explains how to change which member of a single-primary group is the ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-connection-control-failed-login-attempts-table.html
The table contains rows only for accounts that have had one or more consecutive failed connection attempts without a subsequent successful attempt. When an account connects successfully, its failed-connection count is reset to zero and the server ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-cmp-per-index-table.html
row *************************** database_name: employees table_name: salaries index_name: PRIMARY compress_ops: 0 compress_ops_ok: 0 compress_time: 0 uncompress_ops: 23451 uncompress_time: 4 *************************** 2. row ... The ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-metrics-table.html
row *************************** NAME: dml_inserts SUBSYSTEM: dml COUNT: 3 MAX_COUNT: 3 MIN_COUNT: NULL AVG_COUNT: 0.046153846153846156 COUNT_RESET: 3 MAX_COUNT_RESET: 3 MIN_COUNT_RESET: NULL AVG_COUNT_RESET: NULL TIME_ENABLED: 2014-12-04 14:18:28 ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-table-reference.html
The following table summarizes INFORMATION_SCHEMA InnoDB tables. For greater detail, see the individual table descriptions. Table 28.3 INFORMATION_SCHEMA InnoDB Tables Table Name Description Introduced INNODB_BUFFER_PAGE Pages in InnoDB buffer pool ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-introduction.html
INFORMATION_SCHEMA and Privileges For most INFORMATION_SCHEMA tables, each MySQL user has the right to access them, but can see only the rows in the tables that correspond to objects for which the user has the proper access privileges.
https://dev.mysql.com/doc/refman/8.0/en/information-schema-parameters-table.html
For a stored function, there is also a row that applies to the function return value (as described by the RETURNS clause). The return value is not a true parameter, so the row that describes it has these unique characteristics: The ORDINAL_POSITION ... The PARAMETERS table provides information about parameters for stored routines (stored procedures and stored functions), and about return values for stored ...