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Is there a way to use a part of varchar2 string as a primary key in oracle sql?
| Author | Votes | Δ |
|---|---|---|
| MT0 | 3 | +1.09 |
| shreesha | 2 | +1.28 |
| Lalit Kumar B | 1 | -1.17 |
Last visited: Jan 3, 2016, 9:42:40 AM