Question

I have a table with columns:

StudentID
Value1
Value2
Value3

…and I have three queries, each one will come with the studentID and a value(1 to 3) fields

What I would like to do is to update this table, with parallel values, if a student exists then update the corresponding column if not, create a new row.

I’m working with SQL Server 2005

Answer 1

Write it like you just said it:

IF EXISTS(SELECT * FROM table WHERE StudentID = @StudentID)
BEGIN
--update
END
ELSE
BEGIN
--insert
END