How to use unique identifier column where clause of SQL Server 2000?

Question

How to use unique identifier column where clause of SQL Server 2000?

sohail29

SSC Veteran

Points: 276
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April 27, 2008 at 7:29 am

#186970

Hi,
I got 1 problem regarding uniqueidentifier column that how do we select values from table where uniqueidentifier columns matches the value.
i use this query
select sCode_value from Codes where
gCode_Id = '853C63ED-D7CC-4E86-965E-F425A53E1BA2'
note: gCode_ID is UnqiueIdentifier column
I also tried below query
select sCode_value from Codes where
gCode_Id = Cast('853C63ED-D7CC-4E86-965E-F425A53E1BA2' as UnqiueIdentifier)
but no luck
any one helps me
thanks

Viewing 5 posts - 1 through 4 (of 4 total)

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Carl Federl One Orange Chip Points: 25384 More actions · Answer 1

Your problem is not clear as "no luck" is not very meaningful. Do you mean that no rows are found ? If so, check the value of the uniqueidentifier that is being used.

use tempdb

go

create table FOO

(FooIduniqueidentifiernot null default newid()

,FooDescrvarchar(255)not null

, constraint FOO_P primary key (FooId)

)

insert into FOO (FooDescr)

select 'First' union select 'Second'

select * from FOO

-- replace the value of FooId based on the select

select * from Foo where FooId = '9E3DF8B0-120B-47B4-B150-375B23EE9DDE'

SQL = Scarcely Qualifies as a Language

ChiragNS One Orange Chip Points: 26137 More actions · Answer 2

Hi

This query "select sCode_value from Codes where

gCode_Id = '853C63ED-D7CC-4E86-965E-F425A53E1BA2' " which you have mentioned will work.

As Carl said if no rows are being returned check whether the uniqueidentifier value is being used.

BTW why do you want to use CAST. Is'nt the column datatype uniqueidentifier ?

"Keep Trying"

J-440512 SSCertifiable Points: 6285 More actions · Answer 3

I could not replicate your problem. I tried the following:

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Table1]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)

drop table [dbo].[Table1]

GO

CREATE TABLE [dbo].[Table1] (

[pk] uniqueidentifier ROWGUIDCOL NOT NULL,

[ln_no] [int] NULL

) ON [PRIMARY]

GO

ALTER TABLE [dbo].[Table1] WITH NOCHECK ADD

CONSTRAINT [PK_Table1] PRIMARY KEY CLUSTERED

(

[pk]

) ON [PRIMARY]

GO

ALTER TABLE [dbo].[Table1] ADD

CONSTRAINT [DF_Table1_pk] DEFAULT (newid()) FOR [pk]

GO

INSERT INTO Table1 (ln_no) VALUES (1)

--Viewing the record in Enterprise Manager -> Tables -> Open Table -> All Rows:

--the uniqueidentifier column is stored as

{2F240FEA-0116-4915-9382-CFA4B97B9297} --NOTE curly braces {} !

--whereas the query analyzer displays

2F240FEA-0116-4915-9382-CFA4B97B9297 -- NO braces

--1. From Query Analyzer, BOTH statements, with or without braces, WORK

INSERT INTO Table1 (ln_no) values (1)

SELECT * FROM Table1 WHERE pk = '{2F240FEA-0116-4915-9382-CFA4B97B9297}'

SELECT * FROM Table1 WHERE pk = '2F240FEA-0116-4915-9382-CFA4B97B9297'

pk ln_no

2F240FEA-0116-4915-9382-CFA4B97B9297 1

--2. Checking off IsRowGuid produces the same results

INSERT INTO Table1 (ln_no) values (2)

SELECT * FROM Table1 WHERE pk = '{707A6054-A363-4263-8CB7-F0776A518DA8}'

SELECT * FROM Table1 WHERE pk = '707A6054-A363-4263-8CB7-F0776A518DA8'

pk ln_no

707A6054-A363-4263-8CB7-F0776A518DA8 2

--Removing the default NEWID() property and entering it explicitly STILL WORKS

INSERT INTO Table1 (pk, ln_no) Select NEWID(), 3

SELECT * FROM Table1 WHERE pk = '{DE269F48-45DC-4BBB-8FD7-9A474E2906D6}'

SELECT * FROM Table1 WHERE pk = 'DE269F48-45DC-4BBB-8FD7-9A474E2906D6'

pk ln_no

DE269F48-45DC-4BBB-8FD7-9A474E2906D6 3

Tp help ypu further, you have to suly more info. Script your table and insert values.

sohail29 SSC Veteran Points: 276 More actions · Answer 4

Thanks a lot to all of you for your kind help. I apprecaite your kind and quick help that will solve my problem.

Hopefully in the future i'll get have same type of reponses from you

Thanks once again

Regards

Sohail