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Tag: having-clause

behavior of DBMS after executing where clause

in a select query when some records doesn’t satisfy the condition in where clause, they will be omitted for executing subsequent clauses or not? for example consider we have a group by clause and after that, we have a condition in having clause on max(someThing). if a record has the maximum value of property someThing and it didn’t satisfy the

SELECT id HAVING maximum count of id

Have a products table with item_id and color_id. I’m trying to get the color_id with the most non-null instances. This fails: with This Returns I am looking for color_id 3, which has the most instances. Is there a quick and easy way of getting what I want without 2 queries? Answer This will give you the color_id and the count

Can you use an alias in the WHERE clause in mysql?

I need to use an alias in the WHERE clause, but It keeps telling me that its an unknown column. Is there any way to get around this issue? I need to select records that have a rating higher than x. Rating is calculated as the following alias: Answer You could use a HAVING clause, which can see the aliases,

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