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https://dev.mysql.com/doc/refman/5.7/en/alter-view.html
ALTER [ALGORITHM = {UNDEFINED | MERGE | TEMPTABLE}] [DEFINER = user] [SQL SECURITY { DEFINER | INVOKER }] VIEW view_name [(column_list)] AS select_statement [WITH [CASCADED | LOCAL] CHECK OPTION] This statement changes the definition of a view, ...
https://dev.mysql.com/doc/refman/5.7/en/any-in-some-subqueries.html
The expression is TRUE if table t2 contains (21,14,7) because there is a value 7 in t2 that is less than 10. The expression is FALSE if table t2 contains (20,10), or if table t2 is empty. The expression is unknown (that is, NULL) if table t2 ...
https://dev.mysql.com/doc/refman/5.7/en/apache.html
There are programs that let you authenticate your users from a MySQL database and also let you write your log files into a MySQL table.
https://dev.mysql.com/doc/refman/5.7/en/assignment-operators.html
Table 12.6 Assignment Operators Name Description := Assign a value = Assign a value (as part of a SET statement, or as part of the SET clause in an UPDATE statement) := Assignment operator. Causes the user variable on the left hand side of the ...
https://dev.mysql.com/doc/refman/5.7/en/bit-value-literals.html
A leading 0b is case-sensitive and cannot be written as 0B. In numeric contexts, MySQL treats a bit literal like an integer. To ensure numeric treatment of a bit literal, use it in numeric context. For example, a bit literal assigned to a ...
https://dev.mysql.com/doc/refman/5.7/en/cache-index.html
| tbl_name PARTITION (partition_list) } IN key_cache_name tbl_index_list: tbl_name [{INDEX|KEY} (index_name[, index_name] ...)] partition_list: { partition_name[, partition_name] ... | ALL } The CACHE INDEX statement assigns table indexes to a ...
https://dev.mysql.com/doc/refman/5.7/en/charset-applications.html
To create a database such that its tables use a given default character set and collation for data storage, use a CREATE DATABASE statement like this: CREATE DATABASE mydb CHARACTER SET utf8 COLLATE utf8_general_ci; Tables created in the database ...
https://dev.mysql.com/doc/refman/5.7/en/charset-configuration.html
However, when character_set_system differs from character_set_server or character_set_client, and you input characters manually (as database object identifiers, column values, or both), these may be displayed incorrectly in output from the client or ... The MySQL server has a compiled-in default character set and ...
https://dev.mysql.com/doc/refman/5.7/en/charset-mysql.html
The INFORMATION_SCHEMA COLLATIONS table and the SHOW COLLATION statement have a column that indicates for each collation whether it is the default for its character set (Yes if so, empty if not). To display the available character sets, use the ...
https://dev.mysql.com/doc/refman/5.7/en/charset-national.html
Standard SQL defines NCHAR or NATIONAL CHAR as a way to indicate that a CHAR column should use some predefined character set. For example, these data type declarations are equivalent: CHAR(10) CHARACTER SET utf8 NATIONAL CHARACTER(10) NCHAR(10) As ...