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      2. Mysql 官方文檔

        Resource

        Related

        Data Types

        Types

        Operators

        Assignment Operators

        • :=
        • =

        Logical Operators

        Comparison Operators

        • ^
        • -
        • !=, <>
        • *
        • /
        • &
        • >
        • >>
        • >=
        • <
        • <<
        • <=
        • <=>
        • % or MOD
        • +
        • |
        • ~
        • BETWEEN ... AND ...
        • BINARY
        • CASE
        • DIV
        • IS
        • IS NOT
        • IS NOT NULL
        • IS NULL
        • LIKE
        • NOT BETWEEN ... AND ...
        • NOT LIKE
        • NOT REGEXP
        • REGEXP
        • RLIKE
        • SOUNDS LIKE

        String

        String Comparison

        Regular Expressions

        String Functions

        • ASCII()
        • BIN()
        • BIT_LENGTH()
        • CHAR_LENGTH()
        • CHAR()
        • CHARACTER_LENGTH()
        • CONCAT_WS()
        • CONCAT()
        • ELT()
        • EXPORT_SET()
        • FIELD()
        • FIND_IN_SET()
        • FORMAT()
        • HEX()
        • INSERT()
        • INSTR()
        • LCASE()
        • LEFT()
        • LENGTH()
        • LOAD_FILE()
        • LOCATE()
        • LOWER()
        • LPAD()
        • LTRIM()
        • MAKE_SET()
        • MATCH
        • MID()
        • OCTET_LENGTH()
        • ORD()
        • POSITION()
        • QUOTE()
        • REPEAT()
        • REPLACE()
        • REVERSE()
        • RIGHT()
        • RPAD()
        • RTRIM()
        • SOUNDEX()
        • SPACE()
        • SUBSTR()
        • SUBSTRING_INDEX()
        • SUBSTRING()
        • TRIM()
        • UCASE()
        • UNHEX()
        • UPPER()

        Numeric

        Arithmetic Operators

        Mathematical Functions

        • ABS()
        • ACOS()
        • ASIN()
        • ATAN()
        • ATAN2(), ATAN()
        • CEIL()
        • CEILING()
        • CONV()
        • COS()
        • COT()
        • CRC32()
        • DEGREES()
        • EXP()
        • FLOOR()
        • LN()
        • LOG()
        • LOG10()
        • LOG2()
        • MOD()
        • OCT()
        • PI()
        • POW()
        • POWER()
        • RADIANS()
        • RAND()
        • ROUND()
        • SIGN()
        • SIN()
        • SQRT()
        • TAN()
        • TRUNCATE()

        Date

        Date and Time

        Group

        GROUP BY Functions

        Information

        Information Functions

        Encrypt

        Encryption and Compression

        Miscellaneous

        Miscellaneous Functions

        • DEFAULT()
        • GET_LOCK()
        • INET_ATON()
        • INET_NTOA()
        • IS_FREE_LOCK()
        • IS_USED_LOCK()
        • MASTER_POS_WAIT()
        • NAME_CONST()
        • RELEASE_LOCK()
        • SLEEP()
        • UUID_SHORT()
        • UUID()
        • VALUES()

        Samples

        Select Queires

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