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![SQL Basic] How to rename Columns and see Unique Values? — SQL AS/DISTINCT/IS NULL | by SQLGate Global | SQLGate | Medium](https://miro.medium.com/max/1200/1*cGg_za8DuuWxJBH8PgmS2w.png "SQL Basic] How to rename Columns and see Unique Values? — SQL AS/DISTINCT/IS NULL | by SQLGate Global | SQLGate | Medium")