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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-online-add-node-example.html
This should be similar to what is shown here, where password is the MySQL root password for a given MySQL server instance: $> mysqladmin -uroot -ppassword shutdown 081208 20:19:56 mysqld_safe mysqld from pid file /usr/local/mysql/var/tonfisk.pid ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-columns-table.html
This is NULL if the column has an explicit default of NULL, or if the column definition includes no DEFAULT clause. The value is YES if NULL values can be stored in the column, NO if not. (A UNIQUE index permits multiple NULL values, but you can ...
https://dev.mysql.com/doc/refman/5.7/en/creating-tables.html
You want a table that contains a record for each of your pets. This can be called the pet table, and it should contain, as a bare minimum, each animal's name. Because the name by itself is not very interesting, the table should contain other ...
https://dev.mysql.com/doc/refman/5.7/en/range-optimization.html
Additionally, for BTREE indexes, comparison of a key part with a constant value is a range condition when using the >, <, >=, <=, BETWEEN, !=, or <> operators, or LIKE comparisons if the argument to LIKE is a constant string that does not start with ... The range access method uses a single index to retrieve a subset of table rows that are contained within one or several index value ...
https://dev.mysql.com/doc/refman/5.7/en/show-columns.html
Collation The collation for nonbinary string columns, or NULL for other columns. The value is YES if NULL values can be stored in the column, NO if not. (A UNIQUE index permits multiple NULL values, but you can tell whether the column permits NULL ... SHOW [FULL] {COLUMNS | FIELDS} {FROM | IN} tbl_name [{FROM | IN} db_name] [LIKE 'pattern' | WHERE expr] SHOW COLUMNS displays information about the columns in a given ...
https://dev.mysql.com/doc/refman/5.7/en/alter-table.html
Running ALTER TABLE tbl_name ENGINE=INNODB on an existing InnoDB table performs a “null” ALTER TABLE operation, which can be used to defragment an InnoDB table, as described in Section 14.12.4, “Defragmenting a Table”. The outcome of ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-restore.html
The following changes in primary key definitions are supported by --allow-pk-changes: Extending the primary key: A non-nullable column that exists in the table schema in the backup becomes part of the table's primary key in the database. --connect, ... The NDB Cluster restoration program is implemented as a separate command-line utility ndb_restore, which can normally be found in the MySQL bin ...
https://dev.mysql.com/doc/refman/5.7/en/select-into.html
If the FIELDS ESCAPED BY character is empty, no characters are escaped and NULL is output as NULL, not \N. INTO form of SELECT enables a query result to be stored in variables or written to a file: SELECT ... Column and line terminators can be ...
https://dev.mysql.com/doc/refman/5.7/en/audit-log-reference.html
Return value: The password string for success (up to 766 bytes), or NULL and an error for failure. Return value: If the call succeeds, the return value is a binary JSON string containing an array of audit events, or a JSON null value if that was ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-row-format.html
An SQL NULL value reserves one or two bytes in the record directory. An SQL NULL value reserves zero bytes in the data part of the record if stored in a variable-length column. Reserving fixed space for NULL values permits columns to be updated in ... The row format of a table determines how its rows are physically stored, which in turn can affect the performance of queries and DML ...