Hi,
Is there any way to do this? I tried using a 'select scope_identity()', but that returns null, apparently because my identity column is not a numeric of any sort.
An answer to this would help me a lot! I would love to not have to use an integer or similar...
Cheers!
Well, I am not sure whether you are mistaken about identity and uniqueidentifier.
See the difference:
-- scope_identity(), @@identity and ident_current() are dealing with identities as in:
create table t (id integer identity(1000, 1), m varchar(100))
insert into table t (m) values ('sequence number starting from 1000 incremented by 1');
select scope_identity('t') as "Last inserted identity number for table t is";whereas
create table ui (id uniqueidentifier, m varchar(100))greates in table ui a globally unique identifier (GUID) which cannot be managed with above mentioned functions/variable. There are some ways to access such generated GUID, as for example using transact sql:
declare @tt table (idtt uniqueidentifier);
insert into ui output inserted.id into @tt values (newid(), 'This is a GUID!');
select idtt as "Last inserted GUID: " from @tt;
-- Instead of newid() which generates randomly distributed GUIDs you can also use newsequentialid() which generates sequential GUIDs.Attention: This code not tested!
GUIDs (example: 70E2E8DE-500B-4630-B3CB-16A131D35CD1) are extremly rarely used for primary keys and foreign keys. GUID identifiers should never appear on human-being interfaces. For such purposes identities which usually have integer datatype are quite usual.
-- tesu
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