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https://dev.mysql.com/doc/refman/5.7/en/partitioning-management-range-list.html
You can see that this is the case by re-running the previous SELECT query: mysql> SELECT * FROM tr WHERE purchased -> BETWEEN '1995-01-01' AND '1999-12-31'; Empty set (0.00 sec) Because of this, you must have the DROP privilege for a table before ...
https://dev.mysql.com/doc/refman/5.7/en/view-updatability.html
The flag is set to YES (true) if UPDATE and DELETE (and similar operations) are legal for the view. Derived tables can also be specified in multiple-table UPDATE and DELETE statements, but can only be used for reading data to specify rows to be ...
https://dev.mysql.com/doc/refman/5.7/en/backup-and-recovery.html
It is important to back up your databases so that you can recover your data and be up and running again in case problems occur, such as system crashes, hardware failures, or users deleting data by mistake. Backups are also essential as a safeguard ...MySQL offers a variety of backup strategies from which you can choose the methods that best suit the requirements for your ...
https://dev.mysql.com/doc/refman/5.7/en/date-and-time-types.html
This is useful when you want to store a “possibly wrong” value which the user has specified (for example, in a web form) in the database for future processing. The date and time data types for representing temporal values are DATE, TIME, ...
https://dev.mysql.com/doc/refman/5.7/en/general-security-issues.html
For information specifically about the access control system that MySQL uses for setting up user accounts and checking database access, see Section 2.9, “Postinstallation Setup and Testing”. For answers to some questions that are often asked ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-compression-background.html
Data compression enables smaller database size, reduced I/O, and improved throughput, at the small cost of increased CPU utilization. Compression is especially valuable for read-intensive applications, on systems with enough RAM to keep frequently ... Because processors and cache memories have increased in speed more than disk storage devices, many workloads are ...
https://dev.mysql.com/doc/refman/5.7/en/error-log.html
For information about selecting the error message character set and language, see Section 10.6, “Error Message Character Set”, and Section 10.12, “Setting the Error Message Language”. This section discusses how to configure the MySQL server ...The error log contains a record of mysqld startup and shutdown ...
https://dev.mysql.com/doc/refman/5.7/en/outer-join-optimization.html
MySQL implements an A LEFT JOIN B join_specification as follows: Table B is set to depend on table A and all tables on which A depends. Table A is set to depend on all tables (except B) that are used in the LEFT JOIN condition. (In other words, any ...The LEFT JOIN condition is used to decide how to retrieve rows from table ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-memory-model.html
Memory used depends on the load actually seen, not the load estimated or explicitly configured for. As the Performance Schema collects data, memory is allocated in the corresponding buffer. With the value set to 0: The corresponding internal buffer ...The buffer size is unbounded, and may grow with the ...
https://dev.mysql.com/doc/refman/5.7/en/windows-server-first-start.html
After starting the server, you should set up a password for it using the instructions in Section 2.9.4, “Securing the Initial MySQL Account”. Note The database must be initialized before MySQL can be started. The following sections provide more ... This section gives a general overview of starting the MySQL ...