Categories:

Semi-structured and Structured Data Functions (Type Predicates)

IS_TIMESTAMP_*¶

Verifies whether a VARIANT value contains the respective TIMESTAMP value:

  • IS_TIMESTAMP_LTZ (value with local time zone).

  • IS_TIMESTAMP_NTZ (value with no time zone).

  • IS_TIMESTAMP_TZ (value with time zone).

See also:

IS_<object_type> , IS_DATE , IS_DATE_VALUE , IS_TIME

Syntax¶

IS_TIMESTAMP_LTZ( <variant_expr> )

IS_TIMESTAMP_NTZ( <variant_expr> )

IS_TIMESTAMP_TZ( <variant_expr> )
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Arguments¶

variant_expr

An expression that evaluates to a value of type VARIANT.

Returns¶

This function returns a value of type BOOLEAN.

Examples¶

Show all TIMESTAMP_* values in a VARIANT column, with the output using the time zone specified for the session.

Note

The output format for the time zone is set using a parameter:

In these examples, the local time zone is US Pacific Standard Time (-08:00 relative to GMT/UCT).

Create and load the table:

CREATE OR REPLACE TABLE vardttm (v VARIANT);
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INSERT INTO vardttm SELECT TO_VARIANT(TO_DATE('2024-02-24'));
INSERT INTO vardttm SELECT TO_VARIANT(TO_TIME('20:57:01.123456789+07:00'));
INSERT INTO vardttm SELECT TO_VARIANT(TO_TIMESTAMP('2023-02-24 12:00:00.456'));
INSERT INTO vardttm SELECT TO_VARIANT(TO_TIMESTAMP_LTZ('2022-02-24 13:00:00.123 +01:00'));
INSERT INTO vardttm SELECT TO_VARIANT(TO_TIMESTAMP_NTZ('2021-02-24 14:00:00.123 +01:00'));
INSERT INTO vardttm SELECT TO_VARIANT(TO_TIMESTAMP_TZ('2020-02-24 15:00:00.123 +01:00'));
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Show the TIMESTAMP values in the data:

SELECT * FROM vardttm WHERE IS_TIMESTAMP_NTZ(v);
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+---------------------------+
| V                         |
|---------------------------|
| "2023-02-24 12:00:00.456" |
| "2021-02-24 14:00:00.123" |
+---------------------------+

SELECT * FROM vardttm WHERE IS_TIMESTAMP_LTZ(v);
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+---------------------------------+
| V                               |
|---------------------------------|
| "2022-02-24 04:00:00.123 -0800" |
+---------------------------------+

SELECT * FROM vardttm WHERE IS_TIMESTAMP_TZ(v);
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+---------------------------------+
| V                               |
|---------------------------------|
| "2020-02-24 15:00:00.123 +0100" |
+---------------------------------+
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