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Stored Procedure In T-SQL

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AskSQLTeam
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Posted - 2002-04-27 : 09:09:29

nibedita writes "I am having a problem in the syntax of Cursors to be used in a transact SQL script.

The For Loops are not supported in the SQL Server. How do we replace the following code in PL/SQL to migrate it to T-SQL:

Declare Cursor SubOrdinates
Select posnid
From collegue_view
Where SuprorId = p_IniSelfId
v_cSubOrdGoal Varchar(200)
Begin
For SubOrd In SubOrdinates
Loop
Exit When SubOrdinates%NOTFOUND
Begin
Select Var_spror_goal_id
Into v_cSubOrdGoal
From Tao_GoalSet_Tran
Where Num_dfnr_posn_id = Subord.posnid
And Num_dfne_posn_id = Subord.posnid
v_cFamilyGoal = v_cFamilyGoal + v_cSubOrdGoal
if SQL%ROWCOUNT=0 then
null
End If
End
End Loop
End

Thanks In Advance"

robvolk
Most Valuable Yak

15732 Posts

Posted - 2002-04-27 : 09:19:23

T-SQL uses a WHILE construct to perform loops:

WHILE @ctr<10
BEGIN
 INSERT INTO myTable (col1) VALUES (@ctr)
 SET @ctr=@ctr+1
END

You really can't convert PL/SQL to T-SQL, they are different languages even though there are many similarities. I think you posted something similar here:

http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=15343

In fact, if you did convert this to T-SQL, it would not be as efficient as a set based solution would be. From what I can tell, it appears that you are building a string from multiple rows of data by consolidating them. We have an article here that describes how to do it without using cursors:

http://www.sqlteam.com/item.asp?ItemID=2368

And this thread also has some techniques:

http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=9978

In fact, the latter thread could very likely work in Oracle as a pure SQL batch, without needing a cursor at all. I don't know if it will be faster, but it might be.

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