如何在 Snowflake 中重命名表的多个列？

Question

I have a table, say table1 and it has three columns ( col1_a, col2_b, col3_c ). I want to rename the columns to col1, col2, col3 . But the thing is I want to rename all columns in a single query.

Is there a way to achieve this?

Answer 1

You can use a select :

select col1_a as col1, col2_a as col2, col3_a as col3
from t;

If you want to actually change the names in the table, I think you need three alter tables:

alter table t rename column col1_a to col1;
alter table t rename column col2_a to col2;
alter table t rename column col3_a to col3;

I don't think Snowflake allows multiple renames with a single alter table .