Question

I need to bind two tables into a dataset. I have three table named, Students, StudentMarks.

Here if I know the studentId I can query the student table like

DataSet ds=new DataSet();

SqlCommand cmd=new SqlCommand("
SELECT * 
FROM STUDENTS
WHERE STUDENTID=1; 
SELECT *
FROM STUDENTS
WHERE STUDENTID=1");

SqlDataAdapter da=new SqlDataAdapter(cmd);
da.Fill(ds);

like this. So that I can access these two tables like ds.Table[0] and ds.Table[1].

But my question is, if I dont know the studentid and if I want to query all the students as well as their marks and I’ve to get these details in two different tables how can I get?

If I join these two tables, the result will be in a single table, I dunno how to do this, can anyone help me out here? thanks in advance.

Answer 1

Try this;

SELECT
  s.*
FROM STUDENTS s
INNER JOIN StudentMarks m ON s.STUDENTID = m.STUDENTID ;

SELECT
  m.*
FROM STUDENTS s
INNER JOIN StudentMarks m ON s.STUDENTID = m.STUDENTID ;