Help Center/ GaussDB(DWS)/ Tool Guide/ DSC/ SQL Syntax Migration Reference/ MySQL Syntax Migrating/ Data Manipulation Language (DML)/ SELECT/ INTERVAL
Updated on 2024-07-19 GMT+08:00
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INTERVAL

In MySQL, the interval expression format is INTERVAL N, which is not supported by GaussDB(DWS) and needs to be converted to INTERVAL'N'.

Input

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SELECT CURRENT_TIME() - INTERVAL 4 DAY;
SELECT NOW() - INTERVAL 5 HOUR;
SELECT CURRENT_TIME() - INTERVAL '4' DAY;
SELECT NOW() - INTERVAL '5' HOUR;
SELECT CURRENT_TIME() - INTERVAL "4" DAY;
SELECT NOW() - INTERVAL "5" HOUR;

Output

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SELECT  (CURRENT_TIME () - INTERVAL '4' DAY);
SELECT  (NOW () - INTERVAL '5' HOUR);
SELECT  (CURRENT_TIME () - INTERVAL '4' DAY);
SELECT  (NOW () - INTERVAL '5' HOUR);
SELECT  (CURRENT_TIME () - INTERVAL '4' DAY);
SELECT  (NOW () - INTERVAL '5' HOUR);
Parent topic: SELECT