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https://dev.mysql.com/doc/connector-j/en/connector-j-reference-type-conversions.html
MySQL Connector/J is flexible in the way it handles conversions between MySQL data types and Java data types. In general, any MySQL data type can be converted to a java.lang.String, and any numeric type can be converted to any of the Java numeric ...
https://dev.mysql.com/doc/refman/8.4/en/cast-functions.html
row *************************** Table: new_table Create Table: CREATE TABLE `new_table` ( `c1` date DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci The cast functions are useful for sorting ENUM columns in lexical ...
https://dev.mysql.com/doc/refman/8.4/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/8.4/en/create-procedure.html
For example, if a function specifies an ENUM or SET value in the RETURNS clause, but the RETURN statement returns an integer, the value returned from the function is the string for the corresponding ENUM member of set of SET members. By default, a ...
https://dev.mysql.com/doc/refman/8.4/en/create-table.html
Character data types (CHAR, VARCHAR, the TEXT types, ENUM, SET, and any synonyms) can include CHARACTER SET to specify the character set for the column. Columns using BLOB, TEXT, SET, ENUM, BIT, or spatial data types are not permitted; columns that ...| {FULLTEXT | SPATIAL} [INDEX | KEY] [index_name] (key_part,...) [index_option] ...
https://dev.mysql.com/doc/refman/8.4/en/data-type-defaults.html
For string types other than ENUM, the default value is the empty string. Data type specifications can have explicit or implicit default values. A DEFAULT value clause in a data type specification explicitly indicates a default value for a column.
https://dev.mysql.com/doc/refman/8.4/en/grant-tables.html
Table 8.7 procs_priv Table Columns Table Name procs_priv Scope columns Host Db User Routine_name Routine_type Privilege columns Proc_priv Other columns Timestamp Grantor The Routine_type column is an ENUM column with values of 'FUNCTION' or ... The ...
https://dev.mysql.com/doc/refman/8.4/en/known-issues.html
You can have up to 255 ENUM and SET columns in one table. In MIN(), MAX(), and other aggregate functions, MySQL currently compares ENUM and SET columns by their string value rather than by the string's relative position in the set. This section ...
https://dev.mysql.com/doc/refman/8.4/en/myisampack.html
table-lookup The column had only a small number of different values, which were converted to an ENUM before Huffman compression. When the table is used later, the server reads into memory the information needed to decompress columns. This results in ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-limitations.html
This section discusses current restrictions and limitations on MySQL partitioning support. The following constructs are not permitted in partitioning expressions: Stored procedures, stored functions, loadable functions, or plugins. For a list of ...