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 Transact-SQL (2008)
 Primary Index on 2 fields
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sunny_10
Yak Posting Veteran

72 Posts

Posted - 03/20/2013 :  00:29:17  Show Profile  Reply with Quote
Hi

I want Primary Index on 2 fields ShiftCode,EffectiveFrom . Secondly i want if tables exists it should not create table.

sql = " CREATE TABLE Shift" & "" _
& " (shiftcode nvarchar(10) not null, " _
& " CONSTRAINT " & Shift & "_PK6 PRIMARY KEY(shiftcode))"

Thanks

bandi
Flowing Fount of Yak Knowledge

India
2241 Posts

Posted - 03/20/2013 :  01:04:59  Show Profile  Reply with Quote
IF OBJECT_ID('Shift') IS NULL
CREATE TABLE Shift ( ShiftCode nvarchar(10) NOT NULL, EffectiveFrom DATETIME NOT NULL, CONSTRAINT Shift_PK PRIMARY KEY( ShiftCode, EffectiveFrom))


--
Chandu
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djj55
Constraint Violating Yak Guru

USA
352 Posts

Posted - 03/20/2013 :  13:39:15  Show Profile  Reply with Quote
Could also use
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[shift]') AND type in (N'U'))
CREATE TABLE...
This does what bandi did but is just another way.

djj
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jeffw8713
Aged Yak Warrior

USA
819 Posts

Posted - 03/20/2013 :  15:53:25  Show Profile  Reply with Quote
Make sure you include the object type if using object_id...

IF OBJECT_ID('Shift', 'U') IS NULL

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