为什么当我在雪花中运行时会出错？

Question

add_months(CURRENT_DATE() - 1,'MONTH')    

throws an error

Invalid argument types for function '>=': (ROW(TIMESTAMP_NTZ(9), VARCHAR(5)), DATE)

Answer 1

In Oracle and Snowflake , the syntax is:

 ADD_MONTHS( <date_or_timestamp_expr>, <num_months_expr> )

So you would want:

add_months(CURRENT_DATE, -1)

(Note: CURRENT_DATE() can also be used in Snowflake but not in Oracle.)

Answer 2

Correct syntax would be like below as per documentation:

select current_date(), add_months(current_date(), 1);