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https://dev.mysql.com/doc/refman/8.0/en/data-masking-component-usage.html
To use a dictionary, it must first be added to the masking_dictionaries system table and given a name. The dictionaries are read from the table and loaded to the cache during initialization of the components (on server startup). Note Always edit ...
https://dev.mysql.com/doc/refman/8.0/en/function-resolution.html
When the parser encounters a word that is the name of a built-in function, it must determine whether the name signifies a function call or is instead a nonexpression reference to an identifier such as a table or column name. This occurs even when ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-file-space.html
The data files that you define in the configuration file using the innodb_data_file_path configuration option form the InnoDB system tablespace. You cannot define where within the system tablespace your tables are allocated. In a newly created ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndb-api-statistics.html
Such actions include starting and closing (or aborting) transactions; primary key and unique key operations; table, range, and pruned scans; threads blocked while waiting for the completion of various operations; and data and events sent and ... A ...
https://dev.mysql.com/doc/refman/8.0/en/replication-snapshot-method.html
If your database is stored in binary portable files, you can copy the raw data files to a replica. Choose one of these options: Exclude all the tables in the database using --ignore-table option. Check the description for mysqldump's ... If the ...
https://dev.mysql.com/doc/refman/8.0/en/creating-spatial-columns.html
MySQL provides a standard way of creating spatial columns for geometry types, for example, with CREATE TABLE or ALTER TABLE. Use the CREATE TABLE statement to create a table with a spatial column: CREATE TABLE geom (g GEOMETRY); Use the ALTER TABLE ...Spatial columns are supported for MyISAM, InnoDB, NDB, and ARCHIVE ...See also the notes ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-undo-tablespaces.html
To empty an undo tablespace, the undo tablespace must first be marked as inactive using ALTER UNDO TABLESPACE syntax so that the tablespace is no longer used for assigning rollback segments to new transactions. ALTER UNDO TABLESPACE tablespace_name ... Undo tablespaces contain undo logs, which are collections of records containing information about how to undo the latest change by a transaction to a clustered index ...
https://dev.mysql.com/doc/refman/8.0/en/example-auto-increment.html
To start with an AUTO_INCREMENT value other than 1, set that value with CREATE TABLE or ALTER TABLE, like this: mysql> ALTER TABLE tbl AUTO_INCREMENT = 100; InnoDB Notes For information about AUTO_INCREMENT usage specific to InnoDB, see Section ...
https://dev.mysql.com/doc/refman/8.0/en/fulltext-search-mecab.html
Creating a FULLTEXT Index that uses the MeCab Parser To create a FULLTEXT index that uses the mecab parser, specify WITH PARSER ngram with CREATE TABLE, ALTER TABLE, or CREATE INDEX. For InnoDB tables, minimum token size is defined by the ... The ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-replication-group-members.html
The performance_schema.replication_group_members table is used for monitoring the status of the different server instances that are members of the group. The information in the table is updated whenever there is a view change, for example when the ...At that point, servers exchange some of their metadata to synchronize themselves and continue to cooperate ...