The error is bereason fName is had in the SELECT list, yet is not had in a GROUP BY clausage and also is not component of an aggregate feature (Count(), Min(), Max(), Sum(), etc.)
You deserve to deal with that problem by consisting of fName in a GROUP BY. But then you will confront the same concern through surname. So put both in the GROUP BY:
SELECT fName, surname, Count(*) AS num_rowsFROM author INNER JOIN book ON writer.aID = book.authorID;GROUP BY fName, surnameKeep in mind I provided Count(*) wright here you wanted SUM(orders.quantity). However, orders isn"t included in the FROM section of your query, so you should incorporate it before you can Sum() among its areas.
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If you have actually Access accessible, develop the query in the query designer. It have the right to help you understand what features are possible and also use the correct Access SQL syntaxation.
I had a similar trouble in a MS-Access query, and also I resolved it by altering my identical fName to an "Expression" (as opposed to "Group By" or "Sum"). So long as all of my fields were "Expression", the Access query builder did not require any kind of Group By clausage at the finish.
GROUP BY can be selected from Total row in query architecture see in MS Access.If Total row not presented in design check out (as in my case). You can go to SQL View and add GROUP By fname etc. Then Total row will certainly immediately show in style check out.You have to select as Expression in this row for calculated fields.
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