Keyword Analysis & Research: how to check primary key in table

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
how to check primary key in table	1.03	0.5	3620	38	33
how	0.29	1	4972	1	3
to	0.87	0.7	5597	49	2
check	1.93	0.6	4586	6	5
primary	0.87	0.8	5423	83	7
key	1.27	0.8	3105	42	3
in	1.15	0.1	7494	51	2
table	0.54	0.2	5567	82	5

Keyword	CPC	PCC	Volume	Score
how to check primary key in table	1.17	1	2098	87