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https://dev.mysql.com/doc/refman/9.7/en/cast-functions.html
Table 14.15 Cast Functions and Operators Name Description Deprecated BINARY Cast a string to a binary string Yes CAST() Cast a value as a certain type CONVERT() Cast a value as a certain type Cast functions and operators enable conversion of values ...
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-collation-information-schema.html
String columns in INFORMATION_SCHEMA tables have a collation of utf8mb3_general_ci, which is case-insensitive. However, for values that correspond to objects that are represented in the file system, such as databases and tables, searches in ...
https://dev.mysql.com/doc/refman/9.7/en/charset-column.html
Every “character” column (that is, a column of type CHAR, VARCHAR, a TEXT type, or any synonym) has a column character set and a column collation. CREATE TABLE t1 ( col1 CHAR(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ) CHARACTER SET ...
https://dev.mysql.com/doc/refman/9.7/en/charset-compatibility.html
For MaxDB compatibility these two statements are the same: CREATE TABLE t1 (f1 CHAR(N) UNICODE); CREATE TABLE t1 (f1 CHAR(N) CHARACTER SET ucs2); Both the UNICODE attribute and the ucs2 character set are deprecated; you should expect them to be ...
https://dev.mysql.com/doc/refman/9.7/en/charset-configuration.html
The MySQL server has a compiled-in default character set and collation. To change these defaults, use the --character-set-server and --collation-server options when you start the server. The collation must be a legal collation for the default ...
https://dev.mysql.com/doc/refman/9.7/en/charset-connection.html
A “connection” is what a client program makes when it connects to the server, to begin a session within which it interacts with the server. The client sends SQL statements, such as queries, over the session connection. The server sends ...
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-database.html
Every database has a database character set and a database collation. The CREATE DATABASE and ALTER DATABASE statements have optional clauses for specifying the database character set and collation: CREATE DATABASE db_name [[DEFAULT] CHARACTER SET ...
https://dev.mysql.com/doc/refman/9.7/en/charset-literal.html
Every character string literal has a character set and a collation. For the simple statement SELECT 'string', the string has the connection default character set and collation defined by the character_set_connection and collation_connection system ...