abes_nitya Posted August 9, 2006 Share Posted August 9, 2006 sir, iwant to know that "what is the difference between primary key , foreign key and secondary key" plz help me.thanks.bye..... Link to comment Share on other sites More sharing options...
Cronthenoob Posted August 9, 2006 Share Posted August 9, 2006 sir, iwant to know that "what is the difference between primary key , foreign key and secondary key" plz help me.thanks.bye.....This probably won't make sense but:A primary key is the field that identifies that particular table.A foreign key is a primary key from a different table, used to link the two tables together.A secondary key is . . . well i don't 100% remember. . . Link to comment Share on other sites More sharing options...
aspnetguy Posted August 9, 2006 Share Posted August 9, 2006 I think you can define secondary keys and then combine them to make a primary key...don't really remember and have never used a secondary key. Link to comment Share on other sites More sharing options...
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