Search Results
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/backup-partial-options.html
The option can also be used with the backup-dir-to-image and image-to-backup-dir commands to select tables when creating or unpacking a backup image. The option can also be used with the backup-dir-to-image and image-to-backup-dir commands to select ...For an overview of partial backup and restore, as well as usage examples on the following options, see Section 4.3.5, “Making a Partial Backup” and Section 5.1.4, “Table-Level Recovery ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-information-schema-temp-table-info.html
INNODB_TEMP_TABLE_INFO provides information about user-created InnoDB temporary tables that are active in the InnoDB instance. Create a simple InnoDB temporary table: mysql> CREATE TEMPORARY TABLE t1 (c1 INT PRIMARY KEY) ENGINE=INNODB; Query ...It ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-persistent-stats.html
You can also configure automatic statistics recalculation for individual tables by specifying the STATS_AUTO_RECALC clause when creating or altering a table. To override these system-wide settings and configure optimizer statistics parameters for ...
https://dev.mysql.com/doc/refman/8.4/en/table-cache.html
When you execute a mysqladmin status command, you should see something like this: Uptime: 426 Running threads: 1 Questions: 11082 Reloads: 1 Open tables: 12 The Open tables value of 12 can be somewhat puzzling if you have fewer than 12 tables. If ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-partitions-table.html
PARTITION_EXPRESSION The expression for the partitioning function used in the CREATE TABLE or ALTER TABLE statement that created the table's current partitioning scheme. For each such row: The SUBPARTITION_NAME, SUBPARTITION_ORDINAL_POSITION, ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-replication-tables.html
This is similar to the information available from the SHOW REPLICA STATUS statement, but representation in table form is more accessible and has usability benefits: SHOW REPLICA STATUS output is useful for visual inspection, but not so much for ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-limitations.html
Tables employing user-defined partitioning do not preserve the SQL mode in effect at the time that they were created. Therefore, a change in the SQL mode at any time after the creation of partitioned tables may lead to major changes in the behavior ...Partitioning and repartitioning operations (such as ALTER TABLE with PARTITION BY ..., REORGANIZE PARTITION, or REMOVE PARTITIONING) depend on file system operations for their ...
https://dev.mysql.com/doc/refman/8.4/en/truncate-table.html
Logically, TRUNCATE TABLE is similar to a DELETE statement that deletes all rows, or a sequence of DROP TABLE and CREATE TABLE statements. It differs from DELETE in the following ways: Truncate operations drop and re-create the table, which is much ...To achieve high performance, TRUNCATE TABLE bypasses the DML method of deleting ...For ...
https://dev.mysql.com/doc/refman/8.4/en/rebuilding-tables.html
If you need to rebuild an InnoDB table because a CHECK TABLE operation indicates that a table upgrade is required, use mysqldump to create a dump file and mysql to reload the file. For example, if t1 is an InnoDB table, use this statement: ALTER ...
https://dev.mysql.com/doc/heatwave/en/mys-hwaml-predictions-ml-predict-table.html
The input table does not have the columns that are created for the output table when generating predictions. When the output table is created, you can query a sample of the table to review predictions. ML_PREDICT_TABLE generates predictions for an ...The following example trains a dataset with the classification machine learning ...