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https://dev.mysql.com/doc/refman/9.7/en/charset-collation-implementations.html
MySQL implements several types of collations: Simple collations for 8-bit character sets This kind of collation is implemented using an array of 256 weights that defines a one-to-one mapping from character codes to weights. It is a case-insensitive ...
https://dev.mysql.com/doc/refman/9.7/en/charset-conversion.html
To convert a binary or nonbinary string column to use a particular character set, use ALTER TABLE. For successful conversion to occur, one of the following conditions must apply: If the column has a binary data type (BINARY, VARBINARY, BLOB), all ...
https://dev.mysql.com/doc/refman/9.7/en/charset-errors.html
This section describes how the MySQL server uses character sets for constructing error messages. For information about the language of error messages (rather than the character set), see Section 12.12, “Setting the Error Message Language”. For ...
https://dev.mysql.com/doc/refman/9.7/en/charset-metadata.html
Metadata is “the data about the data.” Anything that describes the database—as opposed to being the contents of the database—is metadata. Thus column names, database names, user names, version names, and most of the string results from SHOW ...
https://dev.mysql.com/doc/refman/9.7/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/9.7/en/clone-plugin-options-variables.html
This section describes the system variables that control operation of the clone plugin. If values specified at startup are incorrect, the clone plugin may fail to initialize properly and the server does not load it. In this case, the server may ...
https://dev.mysql.com/doc/refman/9.7/en/clone-plugin-stop.html
If necessary, you can stop a cloning operation with a KILL QUERY processlist_id statement. On the recipient MySQL server instance, you can retrieve the processlist identifier (PID) for a cloning operation from the PID column of the clone_status ...
https://dev.mysql.com/doc/refman/9.7/en/correlated-subqueries.html
A correlated subquery is a subquery that contains a reference to a table that also appears in the outer query. For example: SELECT * FROM t1 WHERE column1 = ANY (SELECT column1 FROM t2 WHERE t2.column2 = t1.column2); Notice that the subquery ...
https://dev.mysql.com/doc/refman/9.7/en/create-view.html
CREATE [OR REPLACE] [ALGORITHM = {UNDEFINED | MERGE | TEMPTABLE}] [MATERIALIZED] ... If the view does not exist, CREATE OR REPLACE VIEW is the same as CREATE VIEW. If the view does exist, CREATE OR REPLACE VIEW replaces it. The select_statement is ...
https://dev.mysql.com/doc/refman/9.7/en/data-masking-plugin-usage.html
Before using MySQL Enterprise Data Masking, install it according to the instructions provided at Section 8.5.3.1, “MySQL Enterprise Data Masking Plugin Installation”. To use MySQL Enterprise Data Masking in applications, invoke the functions ...