Dear all what is the error on below Code:Only one expression can be specified in the select list when the subquery is not introduced with EXISTS.

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SQL-Server-2012

SQL

SELECT ID,firstName FROM human u WHERE fatherID IN(
                                    SELECT  ID,firstName FROM human h WHERE  fatherID IN
                                    (SELECT ID,firstName FROM human u WHERE ID = 2)
                                    )

I NEED A HELP

Posted 21-Jul-14 16:40pm

m.mongolia

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*dan!sh* · Answer 1 · 2014-07-21T18:15:00

Your sub query is returning more than one column. It should be returning only one column. That aside, I do not see a point of using sub query here. Shouldn't this give the result you expect:

SQL

SELECT ID, FIRSTNAME FROM HUMAN WHERE FATHERID=2

You should also try and read guidelines to ask question. Subject should be precise and not entire question itself.

Maciej Los · Answer 2 · 2014-07-21T19:49:00

Solution 2

The proper query is:

SQL

SELECT ID, firstName
FROM human AS U WHERE U.ID = 2

I strongly recommend to read some tutorial, for example: http://www.w3schools.com/sql/[^]

Posted 21-Jul-14 19:49pm

Maciej Los

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m.mongolia 5-Aug-14 11:04am

thank you

Maciej Los 5-Aug-14 16:03pm

You're welcome.
Please, accept all valuable answers as a solution (green button) - formally to remove your question from unanswered list.

Dear all what is the error on below Code:Only one expression can be specified in the select list when the subquery is not introduced with EXISTS.

2 solutions

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