Cannot delete a row in a table

[maupiti]

SQL 2000 SERVER

In SQL SERVER Enterprise Manager.

I have a table, and this table has no primary key
or index key defined, and it does not have any relationship
with other table. When I try to delete a row it gives me an
error.

Error: Key column information is insufficient
or incorrect. Too many rows were affected by update.

 

[Golom]

Probably better to ask in forum183 (SQL Server: Programming).