Keyword Analysis & Research: why do we use group by

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why do we use group by	0.99	0.2	281	1	22
why	1.71	0.2	786	97	3
do	0.34	0.1	3208	78	2
we	1.84	1	7103	21	2
use	0.1	0.7	941	48	3
group	1.1	0.2	1007	94	5
by	0.29	0.7	1748	90	2

Keyword	CPC	PCC	Volume	Score
why do we use group by	1.73	0.1	4000	81