how to get first day of month in snowflake

 we have a function in the snowflake, that will truncate the month/year from the given date.

here are few examples.

1. Using Current_Date function

SELECT CURRENT_DATE() AS Today_Date,DATE_TRUNC(MONTH,CURRENT_DATE()) AS Start_Date;

Output: 

2. By using Hardcoded Value

SELECT '2021-05-26' AS Actual_Date,DATE_TRUNC(MONTH,TO_DATE('2021-05-26')) AS Start_Date;

OutPut: