Output: Expected output: Answer Each student may have two marks in each subject? Make sure of that first of all Try to use the average AVG(Grades)
Tag: sql-server-ce
SQL: Return only first occurrence
I seldomly use SQL and I cannot find anything similar in my archive so I’m asking this simple query question: I need a query which one returns personID and only the first seenTime Records: Wanted result: That’s what I did & failed: P.S: Notice SQL CE 4 Answer If your seenTime increases as seenID increases: Update for another case: If
SQL Server Compact Edition ISNULL(sth, ‘ ‘) returns a boolean value?
I have an Accounts table with columns name, password and email. They are all type nvarchar. I wrote a query like SELECT name, password, ISNULL(email, ‘eeee’) FROM Accounts WHERE name = ‘” + …