>>Hi,
>>
>>What would be the TSQL syntax to check if a column is set to be an Indenity column (Is Identity = Yes)? And if No, how to do set the column in Identity Yes in code?
>>
>>TIA
>
>Sys.columns has IsIdentity bit column, e.g.
>
>if exists (SELECT name, is_identity
>FROM sys.columns
>WHERE [object_id] = object_id('items')
>and is_identity = 1)
>
>print 'Table Items has identity column'
>
>(If you know the column name, just check it using a similar script).
>
>If you want to make the column to be identity, you need to re-create the table (e.g. if you don't want to preserve current values, you can do
>
>select identity (int,1,1) as NewIdentityColumn, col1, col2, ...
>into myNewTable
>from myTable
The code (above that checks if a table has identity) works. How do I change it if I want to include the column name. That is, if I want to know if a certain column in table 'items' is identity?
On the last point, I do want to preserve the current value in the column before making it an identity. From this point, the column value will be incremented then. So I do not want to recreate the table.
Thank you for your help.
UPDATE. I know that on my first question I just need to specify the name of the column in the WHERE. Got it.
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
"If a nation values anything more than freedom, it will lose its freedom; and the irony of it is that if it is comfort or money that it values more, it will lose that too." W.Somerset Maugham