Which Transact-SQL query or queries should you use?

You administer a Microsoft SQL Server database thatsupports a banking transaction management application.
You need to retrieve a list of account holders who live in cities that do not have a branch location. Which
Transact-SQL query or queries should you use? (Eachcorrect answer presents a complete solution. Choose all
that apply.)

You administer a Microsoft SQL Server database thatsupports a banking transaction management application.
You need to retrieve a list of account holders who live in cities that do not have a branch location. Which
Transact-SQL query or queries should you use? (Eachcorrect answer presents a complete solution. Choose all
that apply.)

A.
SELECT AccountHolderID
FROM AccountHolder
WHERE CityID NOT IN (SELECT CityID FROM BranchMaster)

B.
SELECT AccountHolderID
FROM AccountHolder
WHERE CityID <> ALL (SELECT CityID FROM BranchMaster)

C.
SELECT AccountHolderlD
FROM AccountHolder
WHERE CityID <> SOME (SELECT CityID FROM BranchMaster)

D.
SELECT AccountHolderID
FROM AccountHolder
WHERE CityID <> ANY (SELECT CityID FROM BranchMaster)

Explanation:
Verified the answers as correct.
Reference: http://msdn.microsoft.com/en-us/library/ms188047.aspx
Reference: http://msdn.microsoft.com/en-us/library/ms177682.aspx
Reference: http://msdn.microsoft.com/en-us/library/ms173545.aspx



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Rodrigo

Rodrigo

It’s C and D. Null values make A and B fail.

ramunas

ramunas

Nobody says about possible NULLs. And I think, CityID in Branchmaster can’t be NULL, because the branch wouldn’t be in that table, if it didnt have a city to be in.

ramunas

ramunas

But B is not correct, because it will only return accounts if every account lives in the city, where Branch doesn’t exist.

Mr.Awesome

Mr.Awesome

A and B test it!