# Sql Help

**URL:** <https://forum.kirupa.com/t/sql-help/234604>\
**Category:** programming\
**Created:** [August 3, 2007, 5:30pm UTC](https://forum.kirupa.com/t/sql-help/234604 "2007-08-03T17:30:28Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![wo1olf](https://avatars.discourse-cdn.com/v4/letter/w/278dde/32.png) [@wo1olf](https://forum.kirupa.com/u/wo1olf)\
**Post date:** [August 3, 2007, 5:30pm UTC](https://forum.kirupa.com/t/sql-help/234604/1 "2007-08-03T17:30:28Z")

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I have to do a table with foreign key, but i got mixed how they work. I’m familiar with primary but for other type of key i get lost. Can anyone help me or explain me when and how it does work. Or if you a good resource one internet, let me know.