CAST, ::

Converts a value from one data type to another. :: is an alias for CAST.

See also: TRY_CAST

Syntax

CAST( <expr> AS <data_type> )

<expr>::<data_type>

Examples

SELECT CAST(1 AS VARCHAR), 1::VARCHAR;

┌───────────────────────────────┐
│ cast(1 as string) │ 1::string │
├───────────────────┼───────────┤
│ 1                 │ 1         │
└───────────────────────────────┘