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https://dev.mysql.com/doc/refman/5.7/en/data-change-optimization.html
For inserting and updating large volumes of data (known in the industry as ETL, for “extract-transform-load”), sometimes you use other SQL statements or external commands, that mimic the effects of INSERT, UPDATE, and DELETE statements. This ...
https://dev.mysql.com/doc/refman/5.7/en/foreign-key-optimization.html
If a table has many columns, and you query many different combinations of columns, it might be efficient to split the less-frequently used data into separate tables with a few columns each, and relate them back to the main table by duplicating the ...
https://dev.mysql.com/doc/refman/5.7/en/gis-class-linestring.html
A LineString is a Curve with linear interpolation between points. LineString Examples On a world map, LineString objects could represent rivers. LineString Properties A LineString has coordinates of segments, defined by each consecutive pair of ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-schema-privileges-table.html
The SCHEMA_PRIVILEGES table has these columns: GRANTEE The name of the account to which the privilege is granted, in 'user_name'@'host_name' format. TABLE_CATALOG The name of the catalog to which the schema belongs. The value can be any privilege ...
https://dev.mysql.com/doc/refman/5.7/en/installing-mysql-shell-windows-quick.html
Important The Community version of MySQL Shell requires the Visual C++ Redistributable for Visual Studio 2013 (available at the Microsoft Download Center) to work; make sure that is installed on your Windows system before installing MySQL Shell.
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-instance-tables.html
They provide event names and explanatory notes or status information: cond_instances: Condition synchronization object instances file_instances: File instances mutex_instances: Mutex synchronization object instances rwlock_instances: Lock ...
https://dev.mysql.com/doc/refman/5.7/en/server-administration.html
MySQL Server (mysqld) is the main program that does most of the work in a MySQL installation.
https://dev.mysql.com/doc/refman/5.7/en/sys-ps-is-thread-instrumented.html
Returns YES or NO to indicate whether Performance Schema instrumentation for a given connection ID is enabled, UNKNOWN if the ID is unknown, or NULL if the ID is NULL. This is a value of the type given in the PROCESSLIST_ID column of the ...
https://dev.mysql.com/doc/refman/5.7/en/sys-ps-setup-disable-thread.html
Given a connection ID, disables Performance Schema instrumentation for the thread. This is a value of the type given in the PROCESSLIST_ID column of the Performance Schema threads table or the Id column of SHOW PROCESSLIST output. Example Disable a ...
https://dev.mysql.com/doc/refman/5.7/en/sys-ps-setup-enable-thread.html
Given a connection ID, enables Performance Schema instrumentation for the thread. This is a value of the type given in the PROCESSLIST_ID column of the Performance Schema threads table or the Id column of SHOW PROCESSLIST output. Example Enable a ...