Question

I have a table with 3 columns:

• int UserID
• datetime WorkDate
• string WorkDetail

Each user will have one WorkDetail per WorkDate. I’m using L2S and my where clause matches the UserID and the WorkDate like this:

where t.UserID == TheUserID && t.WorkDate.Date == TheDate.Date

Should I keep the order of the where parameter as is? Should I index the date or the userID?

Thanks.

Answer 1

If each users should have only one WorkDate then make that the primary key in the database. It will enforce data integrity and provide an index in one go.