Keyword Analysis & Research: what is pk and fk in database

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is pk and fk in database	1.02	0.2	9178	98	29
what	1.55	0.2	2719	51	4
is	1.65	0.8	1246	34	2
pk	1.38	0.8	6520	75	2
and	0.93	0.6	3074	98	3
fk	0.39	0.2	996	76	2
in	0.89	0.5	7084	18	2
database	1.42	0.3	5510	49	8

Keyword	CPC	PCC	Volume	Score
what is pk and fk in database	0.75	0.8	5730	51
pk and fk in database	0.67	0.6	5074	21
database pk fk	0.09	0.5	1372	35
pk vs fk database	0.55	0.4	9161	22