SSC-EWI-TS0070

CURRENT_TIMESTAMP in At Time Zone statement may have a different behavior in certain cases.

This EWI is deprecated, please refer to SSC-FDM-TS0024 documentation.

Description

This EWI is added when the At Time Zone has the CURRENT_TIMESTAMP. This is because the result may have different results in some instances.

The main difference is that in SQL Server, CURRENT_TIMESTAMP returns the current system date and time in the server time zone and in Snowflake CURRENT_TIMESTAMP returns the current date and time in the UTC (Coordinated Universal Time) time zone.

Input Code:

Sql Server

SELECT current_timestamp at time zone 'Hawaiian Standard Time';

Result

2024-02-08 16:52:55.317 -10:00

Output Code:

Snowflake

SELECT
CONVERT_TIMEZONE('Pacific/Honolulu', CURRENT_TIMESTAMP() !!!RESOLVE EWI!!! /*** SSC-EWI-TS0070 - CURRENT_TIMESTAMP in At Time Zone statement may have a different behavior in certain cases ***/!!!);

Result

2024-02-08 06:53:46.994 -1000

Recommendations

This is an example if you want to keep the same format in Snowflake.

SQL Server

SELECT current_timestamp at time zone 'Hawaiian Standard Time';

Result

2024-02-08 16:33:49.143 -10:00

In Snowflake you can use ALTER SESSION to change the default time zone. For example:

Snowflake

ALTER SESSION SET TIMEZONE = 'Pacific/Honolulu';

SELECT
CONVERT_TIMEZONE('Pacific/Honolulu', 'UTC', CURRENT_TIMESTAMP());

Result

2024-02-08 16:33:49.143

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