Check if a temporary table exists and delete if it exists before creating a temporary table

Question

I am using the following code to check if the temporary table exists and drop the table if it exists before creating again. It works fine as long as I don\'t change the colu

Answer 1

I think the problem is you need to add GO statement in between to separate the execution into batches. As the second drop script i.e. IF OBJECT_ID('tempdb..#Results') IS NOT NULL DROP TABLE #Results did not drop the temp table being part of single batch. Can you please try the below script.

IF OBJECT_ID('tempdb..#Results') IS NOT NULL
    DROP TABLE #Results

CREATE TABLE #Results
(
    Company                CHAR(3),
    StepId                TINYINT,
    FieldId                TINYINT,
)

GO

select company, stepid, fieldid from #Results

IF OBJECT_ID('tempdb..#Results') IS NOT NULL
DROP TABLE #Results

CREATE TABLE #Results
(
    Company                CHAR(3),
    StepId                TINYINT,
    FieldId                TINYINT,
    NewColumn            NVARCHAR(50)
)

GO

select company, stepid, fieldid, NewColumn from #Results