Categories:

Semi-structured and structured data functions (Cast)

AS_DATE¶

Casts a VARIANT value to a DATE value. This function does not convert values of other data types, including timestamps, to DATE values.

See also:

AS_<object_type>

Syntax¶

AS_DATE( <variant_expr> )
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Arguments¶

variant_expr

An expression that evaluates to a value of type VARIANT.

Returns¶

The function returns a value of type DATE or NULL:

  • If the type of the value in the variant_expr argument is DATE, the function returns a value of type DATE.

  • If the type of the value in the variant_expr argument doesn’t match the type of the output value, the function returns NULL.

  • If the variant_expr argument is NULL, the function returns NULL.

Examples¶

Create a table and load data into it:

CREATE OR REPLACE TABLE as_date_example (date1 VARIANT);

INSERT INTO as_date_example (date1)
 SELECT TO_VARIANT(TO_DATE('2024-10-10'));
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Use the AS_DATE function in a query to cast a VARIANT value to a DATE value:

SELECT AS_DATE(date1) date_value
  FROM as_date_example;
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+------------+
| DATE_VALUE |
|------------|
| 2024-10-10 |
+------------+