Keyword Analysis & Research: what does the coalesce function do

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what does the coalesce function do	0.55	0.5	3543	84	34
what	1.47	0.1	8439	79	4
does	1.78	0.8	5134	90	4
the	1.37	0.7	4623	85	3
coalesce	0.71	0.6	7806	82	8
function	0.28	0.8	5504	40	8
do	1.61	0.5	9925	59	2

Keyword	CPC	PCC	Volume	Score
what does the coalesce function do	1.53	0.4	9476	32