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https://dev.mysql.com/doc/refman/5.7/en/drop-trigger.html
DROP TRIGGER requires the TRIGGER privilege for the table associated with the trigger. Use IF EXISTS to prevent an error from occurring for a trigger that does not exist. A NOTE is generated for a nonexistent trigger when using IF EXISTS. Triggers ... DROP TRIGGER [IF EXISTS] [schema_name.]trigger_name This statement drops a ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-examples-of-use-case-scenarios.html
The following examples are typical use cases for Group Replication. Autonomic Systems - Additionally, you can deploy MySQL Group Replication purely for the automation that is built into the replication protocol (described already in this and ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-buffer-pool-stats-table.html
The INNODB_BUFFER_POOL_STATS table provides much of the same buffer pool information provided in SHOW ENGINE INNODB STATUS output. Much of the same information may also be obtained using InnoDB buffer pool server status variables. For related usage ...The idea of making pages in the buffer pool “young” or “not young” refers to transferring them between the sublists at the head and tail of the buffer pool data ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-configuration.html
For information about optimizing database operations for InnoDB tables, see Section 8.5, “Optimizing for InnoDB Tables”. This section provides configuration information and procedures for InnoDB initialization, startup, and various components ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-backup.html
The next few sections describe how to prepare for and then to create an NDB Cluster backup using the functionality for this purpose found in the ndb_mgm management client. To distinguish this type of backup from a backup made using mysqldump, we ...
https://dev.mysql.com/doc/refman/5.7/en/sys-statements-with-full-table-scans.html
db The default database for the statement, or NULL if there is none. total_latency The total wait time of timed statement events for the statement. rows_examined The total number of rows read from the storage engine for the table. rows_examined_avg ... These views display normalized statements that have done full table ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-memcached-ddl.html
If this option is set to a value greater than 1, use READ UNCOMMITTED queries to find rows that were just inserted. If this option is set to a value greater than 1, changes made to the table using SQL are not immediately visible to memcached ... You ...
https://dev.mysql.com/doc/refman/5.7/en/libmysqld-restrictions.html
As of MySQL 5.7.8, the default value for this directory can be set at build time with the INSTALL_SECURE_FILE_PRIV_EMBEDDEDDIR CMake option. You cannot set this up as a source or a replica (no replication). Very large result sets may be unusable on ... The embedded server has the following limitations: No loadable ...
https://dev.mysql.com/doc/refman/5.7/en/manual-info.html
This is the Reference Manual for the MySQL Database System, version 5.7, through release 5.7.44. Typographical and Syntax Conventions This manual uses certain typographical conventions: Text in this style is used for SQL statements; database, ...
https://dev.mysql.com/doc/refman/5.7/en/pluggable-storage-overview.html
The MySQL pluggable storage engine architecture enables a database professional to select a specialized storage engine for a particular application need while being completely shielded from the need to manage any specific application coding ...The ...The MySQL server architecture isolates the application programmer and DBA from all of the low-level implementation details at the storage level, providing a consistent and easy application model and ...