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Editorial Team
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Asked: 2026-06-15T22:10:06+00:00

I tried the following code in SQL Server and met a strange error: IF

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I tried the following code in SQL Server and met a strange error:

IF OBJECT_ID(N'tempdb..#t1') IS NULL
BEGIN
CREATE TABLE #t1(
    F1 DATE NOT NULL
)
END

IF OBJECT_ID(N'tempdb..#t1') IS NULL
BEGIN
CREATE TABLE #t1(
    F1 DATE NOT NULL
)
END

Error:

‘#t1’ existed.

I have no idea why this error occurs?

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1 Answer

  1. Editorial Team

    This is idea

    IF OBJECT_ID(N'tempdb..#t1') IS NULL
BEGIN
   CREATE TABLE #t1( F1 DATE NOT NULL )
END
GO

IF OBJECT_ID(N'tempdb..#t1') IS NULL
BEGIN
   CREATE TABLE #t1( F1 DATE NOT NULL )
END
GO
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