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keyword

constraint references

Monthly search volume and cost-per-click data for "constraint references" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=constraint+references&country=us" +--------------+------------------+ | volume | 50 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-24 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
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foreign key mysql 1,600 $0 8/20
mysql foreign key 1,600 $0 8/20
sql foreign key 1,300 $0.06 10/20
foreign key sql 1,000 $0 7/20
foreign key constraint 590 $0 13/20
sql reference foreign key 70 $0 10/20
sql primary key and foreign key example 70 $0 7/20
add foreign key to existing table mysql 50 $0 7/20
how to add foreign key constraint in sql 30 $0 8/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=constraint+references&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt