ROW to COLUMN in MySQL DataBase.

Question

Consider an example of the following table:

Please help me with all your knowledge, Thank you I am considering of using only the database(MySQL) rite now. So if the output is shown, not using any PHP or java languages.

Answer 1

I'm try to get exact solution as following as:

SELECT two.stname,
SUM(smark*(1-ABS(SIGN(sname)))) AS en,
SUM(smark*(1-ABS(SIGN(sname)))) AS mat,
SUM(smark*(1-ABS(SIGN(sname)))) AS phy
FROM a1 AS ONE
LEFT JOIN a2 AS two
ON one.sid=two.stid
GROUP BY sname;

the sqlfiddle to click