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    <p>I think this can't be done, when this is the only information you've got. The relation between the values of the parameters, is their position in their list. There is no option to relate and/or preserve these positions in SQL.</p> <p>What influence do you have on creating the sql-statement?</p> <p>If you can iterate over the lists in code and dynamically create the sql, you could come to a solution like this:</p> <pre><code>SELECT * FROM Gecoserv WHERE typeOfEcosystem = 'Freshwater' AND service = 'Habitat' UNION SELECT * FROM Gecoserv WHERE typeOfEcosystem = 'Freshwater' AND service = 'Food' UNION ... </code></pre> <p>For an example of how to parameterize this, have a look at <a href="https://stackoverflow.com/a/337792/410699">this answer</a>.</p> <p><strong>An alternative: splitting strings</strong></p> <p>Your main problem is to preserve the "rank"/"position" of the parameters in their lists. This can be done, by replacing your lists by strings and break them up.</p> <p>I used this <a href="https://stackoverflow.com/questions/314824/t-sql-opposite-to-string-concatenation-how-to-split-string-into-multiple-reco">example of a splitting a string in sql</a>.</p> <p>The resulting query (made with <a href="http://www.sqlfiddle.com/#!3/d960c/12" rel="nofollow noreferrer">this Fiddle</a>) then looks like:</p> <pre><code>DECLARE @ecoSystems varchar(100) = 'Freshwater,Saltwater,Dunes', @services varchar(100) = 'Habitat,Food,Recreation', @separator char(1) = ',' SELECT [g].[id], [g].[typeOfEcoSystem], [g].[service] FROM [dbo].[Split](@separator, @ecoSystems) [e] INNER JOIN [dbo].[Split](@separator, @services) [s] ON [e].[position] = [s].[position] INNER JOIN [Gecoserv] [g] ON [e].[part] = [g].[typeOfEcoSystem] AND [s].[part] = [g].[service] ORDER BY [id] ASC </code></pre> <p><em>Will this work for your scenario?</em> (Answer: yes, almost...)</p> <p><strong>And finally without a function</strong></p> <pre><code>DECLARE @ecoSystems varchar(100) = 'Freshwater,Saltwater,Dunes', @services varchar(100) = 'Habitat,Food,Recreation', @separator char(1) = ','; WITH [EcoSystemsAndServices]([posE], [startE], [endE], [posS], [startS], [endS]) AS ( SELECT 1, 1, CHARINDEX(@separator, @ecoSystems), 1, 1, CHARINDEX(@separator, @services) UNION ALL SELECT [posE] + 1, [endE] + 1, CHARINDEX(@separator, @ecoSystems, [endE] + 1), [posS] + 1, [endS] + 1, CHARINDEX(@separator, @services, [endS] + 1) FROM [EcoSystemsAndServices] WHERE [endE] &gt; 0 ) SELECT [g].[id], [g].[typeOfEcoSystem], [g].[service] FROM [Gecoserv] [g] INNER JOIN [EcoSystemsAndServices] [ess] ON [g].[typeOfEcoSystem] = SUBSTRING(@ecoSystems, [startE], CASE WHEN [endE] &gt; 0 THEN [endE] - [startE] ELSE 100 END) AND [g].[service] = SUBSTRING(@services, [startS], CASE WHEN [endS] &gt; 0 THEN [endS] - [startS] ELSE 100 END) ORDER BY [id] ASC </code></pre>
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    1. COThanks for the answer. However, what I want to do is not writing the elements one by one. The first query you wrote is working great but there should be a way to take elements who have the same rank. (For example: typeNameList[4] and serviceList[4] or typeNameList[28] and serviceList[28]) So, what I'm looking for is the query enables us to select the items from array variables; typeNameList and serviceNameList. But the trick is the elements should have the same rank.
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    2. COI added an alternative to my answer. And can you remove your answer, that was meant to be a comment?
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    3. COThank you very much. Yes, this works for my scenario. But we have a problem. The thing is I have been coding in Wavemaker and I'm using HQL instead of SQL. I thought I could apply by modifying the SQL query on HQL. But I don't know if it is possible to create a function on HQL. I have searched for this, but couldn't find any useful info. Do you have any suggestion in that situation ?
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