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https://dev.mysql.com/doc/refman/5.7/en/time-zone-support.html
This section describes the time zone settings maintained by MySQL, how to load the system tables required for named time support, how to stay current with time zone changes, and how to enable leap-second support. For information about time zone ...
https://dev.mysql.com/doc/refman/5.7/en/traceable-statements.html
Statements which are traceable are listed here: SELECT INSERT REPLACE UPDATE DELETE EXPLAIN with any of the preceding statements SET DO DECLARE, CASE, IF, and RETURN as used in stored routines CALL Tracing is supported for both INSERT and REPLACE ...For statements which are prepared and executed in separate steps, preparation and execution are traced ...
https://dev.mysql.com/doc/refman/5.7/en/tracing-example.html
Now we can examine the trace, whose first column (QUERY), containing the original statement to be traced, is shown here: SELECT * FROM INFORMATION_SCHEMA.OPTIMIZER_TRACE\G *************************** 1. row *************************** QUERY: SELECT ...
https://dev.mysql.com/doc/refman/5.7/en/using-innodb-tables.html
You can declare an auto-increment column so that ascending values are filled in automatically as rows are inserted: # The value of ID can act like a pointer between related items in different tables. InnoDB tables are created using the CREATE TABLE ...
https://dev.mysql.com/doc/refman/5.7/en/working-with-null.html
A common error when working with NULL is to assume that it is not possible to insert a zero or an empty string into a column defined as NOT NULL, but this is not the case. The NULL value can be surprising until you get used to it. Conceptually, ...
https://dev.mysql.com/doc/refman/5.7/en/xa-states.html
An XA transaction progresses through the following states: Use XA START to start an XA transaction and put it in the ACTIVE state. For an ACTIVE XA transaction, issue the SQL statements that make up the transaction, and then issue an XA END ...
https://dev.mysql.com/doc/refman/5.7/en/access-control.html
The primary function of the MySQL privilege system is to authenticate a user who connects from a given host and to associate that user with privileges on a database such as SELECT, INSERT, UPDATE, and DELETE. MySQL enables the creation of accounts ...
https://dev.mysql.com/doc/refman/5.7/en/added-deprecated-removed.html
Options and Variables Introduced in MySQL 5.7 Options and Variables Deprecated in MySQL 5.7 Options and Variables Removed in MySQL 5.7 This section lists server variables, status variables, and options that were added for the first time, have been ...
https://dev.mysql.com/doc/refman/5.7/en/analyze-table.html
ANALYZE TABLE performs a key distribution analysis and stores the distribution for the named table or tables. For MyISAM tables, this statement is equivalent to using myisamchk --analyze. ANALYZE TABLE is supported for partitioned tables, and you ...
https://dev.mysql.com/doc/refman/5.7/en/assigning-passwords.html
Operations that assign or modify passwords are permitted only to users with the CREATE USER privilege, or, alternatively, privileges for the mysql database (INSERT privilege to create new accounts, UPDATE privilege to modify existing accounts).