How can you determine if a temporary table exists in SQL?

In SQL, you can determine if a temporary table exists by using the following method:

IF OBJECT_ID('tempdb..#temp_table') IS NOT NULL
BEGIN
    -- 临时表存在的处理逻辑
END
ELSE
BEGIN
    -- 临时表不存在的处理逻辑
END

The OBJECT_ID() function in the code above is used to retrieve the ID of an object. It returns the ID if the temporary table exists, otherwise it returns NULL. By checking if the return value is NULL, you can determine if the temporary table exists.

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