Question

How can i turn a table from this form:

S_ID          SUBJECT          MARK
1             English          90
1             Math             40
1             Computer         30
2             English          85
2             Math             10
2             Computer         06
3             English          10
3             Math             20
3             Computer         40

To this form

S_ID       English        Math         Computer
1          90             40           30
2          85             10           06
3          10             20           40

using SQL code,

I’m using MS Access 2010,

Thank you

Answer 1

SELECT S_ID ,
       MAX(CASE WHEN subject = 'English' THEN mark ELSE null END) AS English,
       MAX(CASE WHEN subject = 'Math' THEN mark ELSE null END) AS Math,
       MAX(CASE WHEN subject = 'Computer' THEN mark ELSE null END) AS Computer
FROM myTable
GROUP BY S_ID