sql exercise

finally, i finished my sql exercise. after 3 days of late night encoding, trying to locate the problem though i followed the instructions to the letter, it was thru the help and advice of my classmates i.e. mabel, melvin, kareen, tina and kath that i was able to make the program run. now the challenge, i will be taking lis 262 next sem, and i was told that this will involve more programming. oh my God!