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MySQL CAST() Function


Convert a value to a DATE datatype:

SELECT CAST("2017-08-29" AS DATE);
Try it Yourself »

Definition and Usage

The CAST() function converts a value (of any type) into the specified datatype.

Tip: See also the CONVERT() function.


CAST(value AS datatype)

Parameter Values

Parameter Description
value Required. The value to convert
datatype Required. The datatype to convert to. Can be one of the following:
Value Description
DATE Converts value to DATE. Format: "YYYY-MM-DD"
DATETIME Converts value to DATETIME. Format: "YYYY-MM-DD HH:MM:SS"
DECIMAL Converts value to DECIMAL. Use the optional M and D parameters to specify the maximum number of digits (M) and the number of digits following the decimal point (D).
TIME Converts value to TIME. Format: "HH:MM:SS"
CHAR Converts value to CHAR (a fixed length string)
NCHAR Converts value to NCHAR (like CHAR, but produces a string with the national character set)
SIGNED Converts value to SIGNED (a signed 64-bit integer)
UNSIGNED Converts value to UNSIGNED (an unsigned 64-bit integer)
BINARY Converts value to BINARY (a binary string)

Technical Details

Works in: From MySQL 4.0

More Examples


Convert a value to a CHAR datatype:

Try it Yourself »


Convert a value to a TIME datatype:

SELECT CAST("14:06:10" AS TIME);
Try it Yourself »


Convert a value to a SIGNED datatype:

Try it Yourself »