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https://dev.mysql.com/doc/refman/5.7/en/replication-channels.html
In MySQL multi-source replication, a replica opens multiple replication channels, one for each replication source server. The replication channels represent the path of transactions flowing from a source to the replica. Each replication channel has ...
https://dev.mysql.com/doc/refman/5.7/en/resignal.html
RESIGNAL may change some or all information before passing it on. RESIGNAL is related to SIGNAL, but instead of originating a condition as SIGNAL does, RESIGNAL relays existing condition information, possibly after modifying it. RESIGNAL makes it ...
https://dev.mysql.com/doc/refman/5.7/en/string-literals.html
A string is a sequence of bytes or characters, enclosed within either single quote (') or double quote (") characters. Examples: 'a string' "another string" Quoted strings placed next to each other are concatenated to a single string. The following ...
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/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 ...