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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-desc.html
Three of the table properties that can be set using NDB_TABLE comments embedded in CREATE TABLE and ALTER TABLE statements are also visible in ndb_desc output. You can check that the ALTER TABLE statement has the desired effect using SHOW CREATE ...
https://dev.mysql.com/doc/refman/5.7/en/timestamp-initialization.html
CREATE TABLE t1 ( ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, dt DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP ); With a DEFAULT clause but no ON UPDATE CURRENT_TIMESTAMP clause, the column has the given ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-nodes.html
This is one of: NOTHING, CMVMI, STARTING, STARTED, SINGLEUSER, STOPPING_1, STOPPING_2, STOPPING_3, or STOPPING_4. SINGLEUSER is displayed in the status column for all data nodes when the cluster is in single user mode (see Section 21.6.6, “NDB ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-connection-configuration-table.html
(CHANGE MASTER TO option: MASTER_PORT) USER The user name of the account used to connect to the replication source server. (CHANGE MASTER TO option: MASTER_USER) NETWORK_INTERFACE The network interface that the replica is bound to, if any. This ...
https://dev.mysql.com/doc/refman/5.7/en/security.html
These include choosing good passwords, not granting unnecessary privileges to users, ensuring application security by preventing SQL injections and data corruption, and others. Access control and security within the database system itself, including ... When thinking about security within a MySQL installation, you should consider a wide range of possible topics and how they affect the security of your MySQL server and related applications: General factors that affect ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-information-schema-temp-table-info.html
INNODB_TEMP_TABLE_INFO provides information about user-created InnoDB temporary tables that are active in the InnoDB instance. Create a simple InnoDB temporary table: mysql> CREATE TEMPORARY TABLE t1 (c1 INT PRIMARY KEY) ENGINE=INNODB; Query ...It ...
https://dev.mysql.com/doc/refman/5.7/en/partitioning-key.html
Partitioning by key is similar to partitioning by hash, except that where hash partitioning employs a user-defined expression, the hashing function for key partitioning is supplied by the MySQL server. PARTITION BY KEY are similar to those for ...
https://dev.mysql.com/doc/refman/5.7/en/replication-gtids-functions.html
This section provides examples of stored functions (see Chapter 23, Stored Objects) which you can create using some of the built-in functions provided by MySQL for use with GTID-based replication, listed here: GTID_SUBSET(): Shows whether one GTID ...GTID_SUBTRACT(): Returns the GTIDs from one GTID set that are not in ...
https://dev.mysql.com/doc/refman/5.7/en/stored-program-restrictions.html
Because local variables are in scope only during stored program execution, references to them are not permitted in prepared statements created within a stored program. An event may not be created, altered, or dropped from within a stored program, if ...Some of the restrictions noted here apply to all stored routines; that is, both to stored procedures and stored ...
https://dev.mysql.com/doc/refman/5.7/en/binary-log-mysql-database.html
The contents of the grant tables in the mysql database can be modified directly (for example, with INSERT or DELETE) or indirectly (for example, with GRANT or CREATE USER). This pertains to statements such as GRANT, REVOKE, SET PASSWORD, RENAME ...