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https://dev.mysql.com/doc/refman/8.0/en/firewall-reference.html
For information about MySQL Enterprise Firewall Information Schema and Performance Schema tables, see Section 28.7, “INFORMATION_SCHEMA MySQL Enterprise Firewall Tables”, and Section 29.12.17, “Performance Schema Firewall Tables”, ...When ...
https://dev.mysql.com/doc/refman/8.0/en/upgrade-prerequisites.html
To identify such tables, execute this query: SELECT TABLE_SCHEMA, TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE ENGINE NOT IN ('innodb', 'ndbcluster') AND CREATE_OPTIONS LIKE '%partitioned%'; Any table reported by the query must be altered to use ...Preliminary checks: The following issues must not be present: There must be no tables that use obsolete data types or ... Before upgrading to the latest MySQL 8.0 release, ensure the ...
https://dev.mysql.com/doc/refman/8.0/en/data-dictionary-usage-differences.html
ALTER TABLE tbl_name ENGINE=engine_name fails because it updates the storage engine designation, which is stored in the data dictionary. Use of a data dictionary-enabled MySQL server entails some operational differences compared to a server that ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-ft-index-table-table.html
The INNODB_FT_INDEX_TABLE table provides information about the inverted index used to process text searches against the FULLTEXT index of an InnoDB table. Before querying it, set the value of the innodb_ft_aux_table system variable to the name ...
https://dev.mysql.com/doc/refman/8.0/en/drop-table.html
Be careful with this statement! For each table, it removes the table definition and all table data. If the table is partitioned, the statement removes the table definition, all its partitions, all data stored in those partitions, and all partition ...They are permitted to make porting easier from other database ...
https://dev.mysql.com/doc/refman/8.0/en/update.html
UPDATE is a DML statement that modifies rows in a table. An UPDATE statement can start with a WITH clause to define common table expressions accessible within the UPDATE. Single-table syntax: UPDATE [LOW_PRIORITY] [IGNORE] table_reference SET ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-page-compression.html
Page compression is enabled by specifying the COMPRESSION attribute with CREATE TABLE or ALTER TABLE. For example: CREATE TABLE t1 (c1 INT) COMPRESSION="zlib"; You can also enable page compression in an ALTER TABLE statement. ALTER TABLE t1 ...
https://dev.mysql.com/doc/refman/8.0/en/temporary-table-problems.html
Use ALTER TABLE instead: ALTER TABLE old_name RENAME new_name; You cannot refer to a TEMPORARY table more than once in the same query. Temporary tables created with CREATE TEMPORARY TABLE have the following limitations: TEMPORARY tables are ...
https://dev.mysql.com/doc/refman/8.0/en/myisam-repair.html
In this case, you must use ALTER TABLE to increase the MAX_ROWS and AVG_ROW_LENGTH table option values: ALTER TABLE tbl_name MAX_ROWS=xxx AVG_ROW_LENGTH=yyy; If you do not know the current table option values, use SHOW CREATE TABLE. The discussion ...On Unix, make sure that they are readable by the user that mysqld runs as (and to you, because you need to access the files you are ...
https://dev.mysql.com/doc/refman/8.0/en/create-table-check-constraints.html
Prior to MySQL 8.0.16, CREATE TABLE permits only the following limited version of table CHECK constraint syntax, which is parsed and ignored: CHECK (expr) As of MySQL 8.0.16, CREATE TABLE permits the core features of table and column CHECK ...If ...