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Editorial Team
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Asked: 2026-05-26T16:56:56+00:00

I have a SELECT query that returns the response based on an unique ID,

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I have a SELECT query that returns the response based on an unique ID, so I always get just one row.
I thought that I could save my machine an extra SELECT query if I simply added the prices table to the result, and read them to memory later on.

Would that be a good approach or am I missing something ?
(I tried it out and seems to get the job done) 

SELECT * 
FROM subscriptions
LEFT JOIN prices ON 1=1
WHERE subscriptions.ID = 100

edit: The prices table has no ID. I just need to get the complete table, I used to have a different SELECT just for that

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1 Answer

  1. Editorial Team

    This looks like a terrible idea… you should join the subscriptions table to the prices table using the foreign key that you (supposedly/should) have.

    Assuming your prices table has a subscription ID column then your query should look something like this:

    SELECT *
FROM subscriptions LEFT JOIN prices ON subscriptions.ID=prices.ID
WHERE subscriptions.ID=100
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