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POOperand should contain 1 column(s) but need a max(value) in subquery
 

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  1. POOperand should contain 1 column(s) but need a max(value) in subquery
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    <p>i need to export a MySql Database to a SQLite database, im getting only the needed data from medias to make de SQLite database smaller as posible.</p> <p>I have a Query that give to me only the animalsMedias or the plantsMedias that are related to the entry with the last version, published and not filed of an animal or a plant.</p> <pre><code>SELECT AM.*, max(A.version) AS version FROM animalsMedias AS AM INNER JOIN animals AS A ON(AM.idAnimal = A.idAnimal AND A.filed = 0 AND A.published = 1) GROUP BY A.idLanguaje, A.idVersion; </code></pre> <p>And to get only the medias related i try to make a SELECT on "medias" table that only returns to me the medias that are related with the result of the previous select, so i put both in "IN()", but im getting the error:</p> <pre><code>#1241 - Operand should contain 1 column(s) </code></pre> <p>That is the query:</p> <pre><code>SELECT * from medias WHERE idMedia IN(SELECT AM.*, max(A.version) AS version FROM animalsMedias AS AM INNER JOIN animals AS A ON(AM.idAnimal = A.idAnimal AND A.filed = 0 AND A.published = 1) GROUP BY A.idLanguaje, A.idVersion) OR idMedia IN(SELECT PM.*, max(P.version) AS version FROM plantsMedias AS PM INNER JOIN plants AS P ON(PM.idPlant = P.idPlant AND P.filed = 0 AND P.published = 1) GROUP BY P.idLanguaje, P.idVersion); </code></pre> <p>How can i get the "max(A.version)" if i must use only 1 operand?, if i understood good, inside IN i must have only "IN(SELECT AM.idMedia FROM...." to be correct.</p> <p>Thanks in advice and sorry for my english, i try my best.</p>
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    1. USfancyPants
    1. USruudy
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    1. COcan you give sample records with desired result?
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      1. USJohn Woo
 

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