Sounds like you set a primary key without setting that key to auto_increment: 

testdb> create table foo(id int unsigned not null, bar varchar(32), pr
+imary key(id));
Query OK, 0 rows affected (0.01 sec)

testdb> insert into foo(bar) values('foo');
Query OK, 1 row affected, 1 warning (0.00 sec)

testdb> insert into foo(bar) values('bar');
ERROR 1062 (23000): Duplicate entry '0' for key 1

[download]
You will either need to handle the key increment yourself -- or alter the table to make the id auto_increment'ed.

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

In reply to Re: Database Error? DBD:MySQL:DB DO failed: Duplicate entry '0' for key '1' at by jeffa
in thread Database Error? DBD:MySQL:DB DO failed: Duplicate entry '0' for key '1' at by jdlev

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