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8.1

Usage of analytic functions in Oracle PL/SQL

Asked by verysimple in Oracle Database

Tags: functions, oracle

Hi, I am trying to write a Cursor statement as follows
CURSOR c_GetWaiverInd  IS
SELECT Emp_Id,
       Join_Dt,
       Trm_Dt,
       Tax_Wvr_Ind
FROM
   (SELECT Emp_Id,
           Join_Dt,
           Trm_Dt,
           Tax_Wvr_Ind
           LAG(Tax_Wvr_Ind,1,0) OVER (ORDER BY Join_Dt) AS Prev_Tax_Wvr_Ind
    FROM Employee_Tax_History
    WHERE Emp_Id = < i_EmpId
    ORDER BY Join_Dt)
WHERE Tax_Wvr_Ind <> Prev_Tax_Wvr_Ind;

The SELECT portion works fine in SQL but the cursor gives the following error
LINE/COL ERROR
-------- -----------------------------------------------------------------
21/38    PLS-00103: Encountered the symbol "(" when expecting one of the
         following:
         , from
This error is at the order by clause of "LAG(Tax_Wvr_Ind,1,0) OVER (ORDER BY Join_Dt) AS Prev_Tax_Wvr_Ind"

Can you answer me why?
[+][-]05/01/03 01:30 PM, ID: 8438460Author Comment

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[+][-]05/01/03 01:46 PM, ID: 8438572Accepted Solution

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About this solution

Zone: Oracle Database
Tags: functions, oracle
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Solution Provided By: asimkovsky
Participating Experts: 3
Solution Grade: A
 
[+][-]05/01/03 01:48 PM, ID: 8438583Expert Comment

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