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Search Results
https://dev.mysql.com/doc/refman/5.7/en/sys-statements-with-sorting.html
The statements_with_sorting and x$statements_with_sorting views have these columns: query The normalized statement string. db The default database for the statement, or NULL if there is none. total_latency The total wait time of timed occurrences of ...
https://dev.mysql.com/doc/refman/5.7/en/sys-statements-with-temp-tables.html
The statements_with_temp_tables and x$statements_with_temp_tables views have these columns: query The normalized statement string. db The default database for the statement, or NULL if there is none. These views list normalized statements that have ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-commands.html
If you provide an argument to the help command, mysql uses it as a search string to access server-side help from the contents of the MySQL Reference Manual. delimiter str, \d str Change the string that mysql interprets as the separator between SQL ... mysql sends each SQL statement that you issue to the server to be ...
https://dev.mysql.com/doc/refman/5.7/en/windows-pluggable-authentication.html
Authentication string syntax for the Windows authentication plugin follows these rules: The string consists of one or more user mappings separated by commas. Thus, these statements are equivalent: CREATE USER sql_admin IDENTIFIED WITH ... Note ...
https://dev.mysql.com/doc/refman/5.7/en/charset-unicode-utf32.html
The utf32 character set is fixed length (like ucs2 and unlike utf16). utf32 uses 32 bits for every character, unlike ucs2 (which uses 16 bits for every character), and unlike utf16 (which uses 16 bits for some characters and 32 bits for others).
https://dev.mysql.com/doc/refman/5.7/en/declare-local-variable.html
If the DEFAULT clause is missing, the initial value is NULL. type [DEFAULT value] This statement declares local variables within stored programs. To provide a default value for a variable, include a DEFAULT clause. The value can be specified as an ...
https://dev.mysql.com/doc/refman/5.7/en/drop-database.html
If the default database is dropped, the default database is unset (the DATABASE() function returns NULL). DROP {DATABASE | SCHEMA} [IF EXISTS] db_name DROP DATABASE drops all tables in the database and deletes the database. Be very careful with ...
https://dev.mysql.com/doc/refman/5.7/en/example-maximum-row.html
Task: Find the number, dealer, and price of the most expensive article.
https://dev.mysql.com/doc/refman/5.7/en/exists-and-not-exists-subqueries.html
For the preceding example, if t2 contains any rows, even rows with nothing but NULL values, the EXISTS condition is TRUE. If a subquery returns any rows at all, EXISTS subquery is TRUE, and NOT EXISTS subquery is FALSE. For example: SELECT column1 ...
https://dev.mysql.com/doc/refman/5.7/en/function-optimization.html
A function is nondeterministic if, given fixed values for its arguments, it can return different results for different invocations. If a function is tagged nondeterministic, a reference to it in a WHERE clause is evaluated for every row (when ...