MySQL 8.0 Reference Manual(读书笔记41节-- Data Types(3
1.Data Type Default Values Data type specifications can have explicit【ɪkˈsplɪsɪt 明确的;详述的;直言的, 坦率的;一目了然的;】 or implicit【ɪmˈplɪsɪt 含蓄的;完全的;内含的;无疑问的;不直接言明... 2025-03-18 22:20:15MySQL 8.0 Reference Manual(读书笔记40节-- Data Types(2
The string data types are CHAR, VARCHAR, BINARY, VARBINARY, BLOB, TEXT, ENUM, and SET. 1.String Data Type Syntax In some cases, MySQL may change a str... 2025-03-18 22:20:12MySQL 8.0 Reference Manual(读书笔记39节-- Data Types(1
前述 Data type descriptions use these conventions: • For integer types, M indicates the maximum display width. For floating-point and fixed-point types,... 2025-03-18 22:20:11MySQL 8.0 Reference Manual(读书笔记38节-- 字符编码
1.Supported Character Sets and Collations To list the available character sets and their default collations, use the SHOW CHARACTER SET statement or q... 2025-03-18 22:20:03