GUID: varchar(36) versus uniqueidentifier

Question

I\'m working with a legacy database that stores GUID values as a varchar(36) data type:

CREATE TABLE T_Rows (
    RowID    VARCHAR(36) NOT NULL PRIMARY KEY,
            


        

Answer 1

I believe UNIQUEIDENTIFIER was added in SQL Server 2000, so it's possible this application was originally written for SQL Server 7, which didn't support it. But that's just a guess, of course...