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Asked: 2026-05-13T10:41:32+00:00

I want to have a column in a database that can contain multiple entries.

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I want to have a column in a database that can contain multiple entries. Is it possible to have to define the type of the column as an array (fixed-sized array or some dynamic collection) so that it can store multiple entries.

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1 Answer

  1. Editorial Team

    If you require various values to be stored together, in a single field, then you will likely be best off storing them as a delimiter-separated string of values:

    +----------------------------------+
|             PRODUCTS             |
+----------+-----------------------+
| Product  | Colors                |
+----------+-----------------------+
| Notebook | blue,red,green,orange |
+----------+-----------------------+

    This is usually not what youw want though. Generally-speaking, the idea solution is to create relationships between tables. For instance:

    +---------------+
|    PRODUCT    |
+----+----------+
| ID | Product  |
+----+----------+
| 1  | Notebook |
+---------------+

+---------------+
|    COLORS     |
+----+----------+
| ID | Color    |
+----+----------+
| 1  | Blue     |
+---------------+
| 2  | Red      |
+---------------+
| 3  | Green    |
+---------------+

+---------------------+
|    PRODUCTCOLORS    |
+-----------+---------+
| ProductID | ColorID |
+-----------+---------+
| 1         | 1       | Notebook, Blue
+-----------+---------+
| 1         | 3       | Notebook, Green
+-----------+---------+
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