On 23 November 2017 at 11:37, Szymon Lipiński <mabewlun@xxxxxxxxx> wrote: > table can have only one primary key. And most probably you already have one. To clarify, you can have multiple UNIQUE constraints on a table, but only one PRIMARY. Geoff
On 23 November 2017 at 11:37, Szymon Lipiński <mabewlun@xxxxxxxxx> wrote: > table can have only one primary key. And most probably you already have one. To clarify, you can have multiple UNIQUE constraints on a table, but only one PRIMARY. Geoff
|