PDF (US Ltr)
- 41.8Mb
PDF (A4)
- 41.9Mb
Man Pages (TGZ)
- 272.3Kb
Man Pages (Zip)
- 378.3Kb
Info (Gzip)
- 4.2Mb
Info (Zip)
- 4.2Mb
Search Results
https://dev.mysql.com/doc/refman/9.7/en/optimizing-innodb-bulk-data-loading.html
These performance tips supplement the general guidelines for fast inserts in Section 10.2.5.1, “Optimizing INSERT Statements”. When importing data into InnoDB, turn off autocommit mode, because it performs a log flush to disk for every insert.
https://dev.mysql.com/doc/refman/9.7/en/partitioning-limitations.html
This section discusses current restrictions and limitations on MySQL partitioning support. The following constructs are not permitted in partitioning expressions: Stored procedures, stored functions, loadable functions, or plugins. For a list of ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-functions.html
MySQL includes built-in SQL functions that format or retrieve Performance Schema data, and that may be used as equivalents for the corresponding sys schema stored functions. The built-in functions can be invoked in any schema and require no ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-optimization.html
Applications that monitor databases may make frequent use of Performance Schema tables. To write queries for these tables most efficiently, take advantage of their indexes. For example, include a WHERE clause that restricts retrieved rows based on ...
https://dev.mysql.com/doc/refman/9.7/en/replication-gtids-concepts.html
A global transaction identifier (GTID) is a unique identifier created and associated with each transaction committed on the server of origin (the source). This identifier is unique not only to the server on which it originated, but is unique across ...
https://dev.mysql.com/doc/refman/9.7/en/srjsapi-routines.html
Two functions, listed here, provide JavaScript Function objects reflecting MySQL stored routines: getFunction(): Get a Function instance given the name of a stored function. getProcedure(): Get a Function instance given the name of a stored ...
https://dev.mysql.com/doc/refman/9.7/en/sys-ps-thread-id.html
Note ps_thread_id() is deprecated, and subject to removal in a future MySQL version. Applications that use it should be migrated to use the built-in PS_THREAD_ID() and PS_CURRENT_THREAD_ID() functions instead. See Section 14.22, “Performance ...
https://dev.mysql.com/doc/refman/9.7/en/sys-schema-auto-increment-columns.html
This view indicates which tables have AUTO_INCREMENT columns and provides information about those columns, such as the current and maximum column values and the usage ratio (ratio of used to possible values). By default, rows are sorted by ...
https://dev.mysql.com/doc/refman/9.7/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/9.7/en/mysql-cluster-install-example-data.html
Note The information in this section applies to NDB Cluster running on both Unix and Windows platforms. Working with database tables and data in NDB Cluster is not much different from doing so in standard MySQL. There are two key points to keep in ...