SQL OPERATES ON _____[A]--ROWS OF DATA AT A TIME[B]--COLUMNS OF DA...

5 - - TRAC NGHIEM ULM4 POTX
TRAC NGHIEM ULM4 POTX
5 - SQL operates on _____[a]--Rows of data at a time[b]--Columns of data at a time[c]--Tables of data at a time[d]--The entire database