# Relational Data and KV Transformation: Region

| `Region` | `Key`    | `Value`                             |
| :------- | :------- | :---------------------------------- |
| 1        | `T24_r1` | `Tom, 1982-09-28, 1390811212, 78`   |
|          | `T24_r2` | `Jack, 1996-04-12, 1801222187, 91`  |
|          | `T24_r3` | `Frank, 1982-09-28, 1364571212, 90` |
| 2        | `T24_r4` | `Tony, 1977-03-12, 1391113134, 65`  |
|          | `T24_r5` | `Jim, 1992-07-19, 1579915611, 51`   |
|          | `T24_r6` | `Sam, 1978-09-12, 1713665011, 97`   |

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We call the collection of key-value in the database a Region, which is also the logical unit in which we read the data. Obviously, putting all the data in one database into one Region is too inefficient to manage. As a result, when a Region reaches a certain size limit, it splits.