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https://dev.mysql.com/doc/refman/5.7/en/triggers.html
A trigger is a named database object that is associated with a table, and that activates when a particular event occurs for the table. Some uses for triggers are to perform checks of values to be inserted into a table or to perform calculations on ...
https://dev.mysql.com/doc/refman/5.7/en/windows-restrictions.html
The following restrictions apply to use of MySQL on the Windows platform: Process memory On Windows 32-bit platforms, it is not possible by default to use more than 2GB of RAM within a single process, including MySQL. This is because the physical ...
https://dev.mysql.com/doc/refman/5.7/en/x-plugin-options-system-variables.html
To control activation of X Plugin, use this option: --mysqlx[=value] Command-Line Format --mysqlx[=value] Introduced 5.7.12 Type Enumeration Default Value ON Valid Values ONOFFFORCEFORCE_PLUS_PERMANENT This option controls how the server loads X ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-delete-all.html
--defaults-group-suffix Command-Line Format --defaults-group-suffix=string Type String Default Value [none] Also read groups with concat(group, suffix). In some cases, this can be much faster than DELETE or even TRUNCATE TABLE. Usage ndb_delete_all ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-drop-table.html
--defaults-group-suffix Command-Line Format --defaults-group-suffix=string Type String Default Value [none] Also read groups with concat(group, suffix). Usage ndb_drop_table -c connection_string tbl_name -d db_name Options that can be used with ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-move-data.html
--defaults-group-suffix Command-Line Format --defaults-group-suffix=string Type String Default Value [none] Also read groups with concat(group, suffix). Usage The program is invoked with the names of the source and target tables; either or both of ...
https://dev.mysql.com/doc/refman/5.7/en/problems-with-float.html
Floating-point numbers sometimes cause confusion because they are approximate and not stored as exact values. A floating-point value as written in an SQL statement may not be the same as the value represented internally. Attempts to treat ...
https://dev.mysql.com/doc/refman/5.7/en/environment-variables.html
This section lists environment variables that are used directly or indirectly by MySQL. Most of these can also be found in other places in this manual. Options on the command line take precedence over values specified in option files and ...
https://dev.mysql.com/doc/refman/5.7/en/faqs-thread-pool.html
The Thread Pool then manages client connections within configurable thread groups, where they are prioritized and queued based on the nature of the work they were submitted to accomplish. If you are using the innodb_thread_concurrency to limit the ...What is the Thread Pool and what problem does it solve? ...
https://dev.mysql.com/doc/refman/5.7/en/create-table-select.html
You can create one table from another by adding a SELECT statement at the end of the CREATE TABLE statement: CREATE TABLE new_tbl [AS] SELECT * FROM orig_tbl; MySQL creates new columns for all elements in the SELECT. For example: mysql> CREATE ...