#### 1.7.2.2 UPDATE Differences

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 If you access a column from the table to be updated in an expression, [`UPDATE`](update.html) uses the current value of the column. The second assignment in the following statement sets `col2` to the current (updated) `col1` value, not the original `col1` value. The result is that `col1` and `col2` have the same value. This behavior differs from standard SQL.

```
UPDATE t1 SET col1 = col1 + 1, col2 = col1;
```

