I want to create a table which contains a field with multiple values. I familiar with the "set" type, but the problem is that I don't know exactly all the value in advanced.
Does anyone know a solution?
Thanks
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2 Answers
You can put them as comma-separated values (strings) in the column, and use the find_in_set function to query (in case you want to).
ADD:
You could later query as shown below:
For instance, to search for all rows which have value1 as a value in that column, use this:
SELECT T1.column
FROM Table T1
WHERE find_in_set('value1', T1.column) > 0;
Comments
Depending of the programming language you will use You may want to serialize the data and use a VARCHAR (long) or BLOB type. This way, you can put almost anything to your field like an array with multiple data type. In php the description is simple :
serialize — Generates a storable representation of a value
