Sybase to SQL Server MIgration Issues

Nullability difference in Table creation:

           While creating table in Sybase, default nullability of the column is Not null.But in server server the default nullability of the column is Null. That means if the developer did not specify the nullability of the column while creating table,sybase defines the column as Not Nullable and SQL Server defines the column as Nullable.

You can see the example for the default nullability value in the right side of the screenshot for the corresponding database.

Sybase:

SQL Server:

 

            While migrating ‘create table statement’, we should give the NOT NULL for the columns doesn’t have nullability in the column definition.



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