Is there any list datatype in MySQL stored procedures, or a way to emulate them?

Question :

Is there any list datatype in MySQL stored procedures, or a way to emulate them?,

Answer :

I would like to create a stored procedure in MySQL that took a list as argument. For example, say that I would like to be able to set multiple tags for an item in one call, then what I want to do is to define a procedure that takes the ID of the item and a list of tags to set. However, I can’t seem to find any way to do this, there is no list datatype, as far as I’m aware, but can it be emulated somehow? Could the list of tags be a comma-separated string, which can somehow be split and looped over?

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How do you usually work with lists in MySQL stored procedures?

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article has some good discussion on the problem of parsing an array to a stored procedure since stored procedures only allow valid table column data-types as parameters.

There are some neat things you can do with the  table type in mysql – that is if you are loading a flat file into the db.

You could create a temporary table in the stored procedure, iterate over the csv list and insert it to the temp table, then create a cursor which selects the values from that table. This  in the above mentioned thread shows a way of doing this.

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Generally I would split the array before I come to the database and then perform the query individually on each item.

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Disclaimer :

The answers provided above are only to be used to guide the learning process. The questions above are open-ended questions, meaning that many answers are not fixed as above. I hope this article can be useful, Thank you

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