sql - How to identify whether the table has identity column

Question

I want to find out whether the table has an identity column or not. Table is unknown to me. I have not done the structure of the table. Using Query?

I am using Sql Server Compact Edition.

question from:https://stackoverflow.com/questions/2871701/how-to-identify-whether-the-table-has-identity-column

Answer 1

This query returns a table's identity column name:

CREATE PROCEDURE dbo.usp_GetIdentity
@schemaname nvarchar(128) = 'dbo'  
,@tablename nvarchar(128)
AS
BEGIN
    SELECT   OBJECT_NAME(OBJECT_ID) AS TABLENAME, 
             NAME AS COLUMNNAME, 
             SEED_VALUE, 
             INCREMENT_VALUE, 
             LAST_VALUE, 
             IS_NOT_FOR_REPLICATION 
    FROM     SYS.IDENTITY_COLUMNS 
    WHERE OBJECT_NAME(OBJECT_ID) = @tablename
    AND OBJECT_SCHEMA_NAME(object_id) = @schemaname
END

Then form the code side.

Call this stored procedure using the datareader role, then check datareader.hasrows(). If the condition value is true (1), then the table has identity column if set. If not then it doesn't have an identity column.