NVL function in use in PL/SQL

The following SQL statement runs fine and returns data. Notice the ,nvl(fld.MULTSELECT,0).
SELECT exs.PK
,fld.Name
,fld.Desc_
,fld.DataTp
,case when rtrim(fld.InlineName) = '' then
NULL
--convert(nvarchar(255), Null)
else fld.InlineName
end InlineName
,fld.UOM
,fld.High
,fld.Low
,fld.CriticalHigh
,fld.CriticalLow
,fld.ChTp
,nvl(fld.MULTSELECT,0)
,fld.Type
,fld.IsProtected
,fld.RecTp
,fld.RecTpMbrSeq
,fld.SrcEtType
,fld.TargetEtType
,fld.FldCat
--,fc.ChFK FldCateoryFK
-- ,dbo.fn_StripCharacters(fld.Name, '^a-z0-9') SrcStagingFld -- strip out all characters except alphanumeric
,nvl(CAST(trim(fld.PropagateToEAV) AS NUMBER(1,0)),1) PropagateToEAV
,CAST(trim(fld.RecTimeStamp) AS NUMBER(1,0)) RecTimeStamp
,CAST(trim(fld.RecTimeStampEnd) AS NUMBER(1,0)) RecTimeStampEnd
,nvl(CAST(trim(fld.EtTypeTimeStampFld) AS NUMBER(1,0)),0) EtTimeStampFld
,nvl(CAST(trim(fld.EtTypeTimeStampEndFld) AS NUMBER(1,0)),0) EtTypeTimeStampEndFld
,nvl(CAST(trim(fld.EtTypeNameFld) AS NUMBER(1,0)),0) EtTypeNameFld
,nvl(CAST(trim(fld.EtTypeNameFldDeId) AS NUMBER(1,0)),0) EtTypeNameFldDeId
,CAST(trim(fld.EtSrcSystRecKey) AS NUMBER(1,0)) EtSrcSystRecKey
,CAST(trim(fld.EtSrcSystRecAlternativeRecKey) AS NUMBER(1,0)) EtSrcSystAlternativeRecKey
,CAST(trim(fld.ParentEtSrcSystRecKey) AS NUMBER(1,0)) ParentEtSrcSystRecKey
,CAST(trim(fld.MainEtRecTp) AS NUMBER(1,0)) MainEtRecTp
FROM Ld_UD_RecTp fld
-- left join MD_FldCat fc on fld.FldCat = fc.Name
left join Md_Fld exs on fld.RecTp = exs.RecTp and fld.Name = exs.Name
left join Aud_ModDataError Err on err.RecTp = fld.RecTp and Err.BatLogId = 1 -- check if the recordtype has any load errors
where nvl(fld.name,'zzzzzzz') <>'zzzzzzz'
and Err.RecTp is Null
When used in a stored procedure as follows, the procedure doesn't compile
create or replace PROCEDURE MD_Ld_Flds
v_BatLogID IN NUMBER DEFAULT NULL
AS
BEGIN
MERGE INTO MD_Fld targ
USING (SELECT exs.PK
,fld.Name
,fld.Desc_
,fld.DataTp
,case when rtrim(fld.InlineName) = '' then
NULL
--convert(nvarchar(255), Null)
else fld.InlineName
end InlineName
,fld.UOM
,fld.High
,fld.Low
,fld.CriticalHigh
,fld.CriticalLow
,fld.ChTp
,nvl(fld.MULTSELECT,0)
,fld.Type
,fld.IsProtected
,fld.RecTp
,fld.RecTpMbrSeq
,fld.SrcEtType
,fld.TargetEtType
,fld.FldCat
--,fc.ChFK FldCateoryFK
-- ,dbo.fn_StripCharacters(fld.Name, '^a-z0-9') SrcStagingFld -- strip out all characters except alphanumeric
,nvl(CAST(trim(fld.PropagateToEAV) AS NUMBER(1,0)),1) PropagateToEAV
,CAST(trim(fld.RecTimeStamp) AS NUMBER(1,0)) RecTimeStamp
,CAST(trim(fld.RecTimeStampEnd) AS NUMBER(1,0)) RecTimeStampEnd
,nvl(CAST(trim(fld.EtTypeTimeStampFld) AS NUMBER(1,0)),0) EtTimeStampFld
,nvl(CAST(trim(fld.EtTypeTimeStampEndFld) AS NUMBER(1,0)),0) EtTypeTimeStampEndFld
,nvl(CAST(trim(fld.EtTypeNameFld) AS NUMBER(1,0)),0) EtTypeNameFld
,nvl(CAST(trim(fld.EtTypeNameFldDeId) AS NUMBER(1,0)),0) EtTypeNameFldDeId
,CAST(trim(fld.EtSrcSystRecKey) AS NUMBER(1,0)) EtSrcSystRecKey
,CAST(trim(fld.EtSrcSystRecAlternativeRecKey) AS NUMBER(1,0)) EtSrcSystAlternativeRecKey
,CAST(trim(fld.ParentEtSrcSystRecKey) AS NUMBER(1,0)) ParentEtSrcSystRecKey
,CAST(trim(fld.MainEtRecTp) AS NUMBER(1,0)) MainEtRecTp
FROM Ld_UD_RecTp fld
-- left join MD_FldCat fc on fld.FldCat = fc.Name
left join Md_Fld exs on fld.RecTp = exs.RecTp and fld.Name = exs.Name
left join Aud_ModDataError Err on err.RecTp = fld.RecTp and Err.BatLogId = v_BatLogID -- check if the recordtype has any load errors
where nvl(fld.name,'zzzzzzz') <>'zzzzzzz'
and Err.RecTp is Null -- Exclude recordtypes which had errors
) src on (src.PK = Targ.PK)
when matched then
update Set      Targ.Name               =src.Name
,Targ.Desc_               =src.Desc_
,Targ.DataTp               =src.DataTp
,Targ.InlineName               =src.InlineName
,Targ.UOM               =src.UOM
,Targ.High               =src.High
,Targ.Low               =src.Low
,Targ.CriticalHigh               =src.CriticalHigh
,Targ.CriticalLow               =src.CriticalLow
,Targ.ChTp               =src.ChTp
,Targ.MultSelect               =src.MultSelect
,Targ.Type               =src.Type
,Targ.IsProtected               =src.IsProtected
,Targ.RecTp               =src.RecTp
,Targ.RecTpMbrSeq               =src.RecTpMbrSeq
,Targ.SrcEtType               =src.SrcEtType
,Targ.TargetEtType               =src.TargetEtType
,Targ.FldCat               =src.FldCat
--,Targ.SrcStagingFld               =src.SrcStagingFld
,Targ.PropagateToEAV               =src.PropagateToEAV
,Targ.RecTimeStamp               =src.RecTimeStamp
,Targ.RecTimeStampEnd               =src.RecTimeStampEnd
,Targ.EtTimeStampFld               =src.EtTimeStampFld
,Targ.EtTimeStampEndFld               =src.EtTypeTimeStampEndFld
,Targ.EtNameFld               =src.EtTypeNameFld
,Targ.EtNameFldDeId               =src.EtTypeNameFldDeId
,Targ.EtSrcSystRecKey               =src.EtSrcSystRecKey
,Targ.EtSrcSystAlternativeRecKey=src.EtSrcSystAlternativeRecKey
,Targ.ParentEtSrcSystRecKey               =src.ParentEtSrcSystRecKey
,Targ.MainEtRecTp               =src.MainEtRecTp
,targ.LastModified = SYSDATE
when not matched then --target
insert (Name
,Desc_
,DataTp
,InlineName
,UOM
,High
,Low
,CriticalHigh
,CriticalLow
,ChTp
,MultSelect
,Type
,IsProtected
,RecTp
,RecTpMbrSeq
,SrcEtType
,TargetEtType
,FldCat
--,SrcStagingFld
,PropagateToEAV
,RecTimeStamp
,RecTimeStampEnd
,EtTimeStampFld
,EtTimeStampEndFld
,EtNameFld
,EtNameFldDeId
,EtSrcSystRecKey
,EtSrcSystAlternativeRecKey
,ParentEtSrcSystRecKey
,MainEtRecTp
,LastModified)
values (src.Name
,src.Desc_
,src.DataTp
,src.InlineName
,src.UOM
,src.High
,src.Low
,src.CriticalHigh
,src.CriticalLow
,src.ChTp
,src.MultSelect
,src.Type
,src.IsProtected
,src.RecTp
,src.RecTpMbrSeq
,src.SrcEtType
,src.TargetEtType
,src.FldCat
--,src.SrcStagingFld
,src.PropagateToEAV
,src.RecTimeStamp
,src.RecTimeStampEnd
,src.EtTimeStampFld
,src.EtTypeTimeStampEndFld
,src.EtTypeNameFld
,src.EtTypeNameFldDeId
,src.EtSrcSystRecKey
,src.EtSrcSystAlternativeRecKey
,src.ParentEtSrcSystRecKey
,src.MainEtRecTp
,SYSDATE);
END;
When you show errors you get the following;
7/7 PL/SQL: SQL Statement ignored
125/8 PL/SQL: ORA-00904: 'SRC"."MULTSELECT": invalid identifier
If I compile the procedure without the NVL, the procedure compiles with no errors.
We're running Oracle 11g

Hi,
In a sub-query (such as the USING sub-query in a MERGE statement), each column in the SELECT clause has to have a unique, valid name.
In an unnested SQL query, you don't have to name the columns at all. If you say
SELECT NVL (dummy, 'FOO')
FROM dual;In SQL*Plus, it will automatically name the column "NVL(DUMMY,'FOO')" for you, and it doesn't insist that the name be unique.
In a sub-query, you have to explicitly name all the columns, and make sure they're unique; for example
,nvl(fld.MULTSELECT,0) AS multselect_or_0
To be excruciatingly precise, some versions of Oracle let you get away with not having aliases in certain circumstances, but there's no point in doing so. Always assign unique aliases to columns in a sub-query.

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SQL>
SQL>
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select testf(:my_x) from dual
ERROR at line 1:
ORA-06572: Function TESTF has out argumentsAnd it doesn't do any DML...
SQL> create table x (x number);
Table created.
SQL> ed
Wrote file afiedt.buf
1 create or replace function testf return number is
2 begin
3    insert into x values (1);
4    return 1;
5* end;
SQL> /
Function created.
SQL> select testf() from dual;
select testf() from dual
ERROR at line 1:
ORA-14551: cannot perform a DML operation inside a query
ORA-06512: at "SCOTT.TESTF", line 3

Which SQL function to use to get previous month's data?

Hi
The reporting need: Display of two month's payroll run results....current and previous (based on the parameter passed) in Oracle Discoverer.
Data source: A table in which run result values are stored. Of course to be linked to number of other tables.
Can somebody guide me on which SQL function to use to get the data for previous month?
Secondly, as Discoverer does not support parameters, I cannot put parameter in the query itself. I'll be applying parameter later while generating my report.
Please advice.
Thanks and regards,
Aparna

It's not very clear in my head... but you can try :
SQL> select * from test;
ENAM        SAL DT
TOTO       1000 30/05/06
TOTO       1001 20/04/06
TOTO       1002 11/03/06
TATA       2000 30/05/06
TATA       1500 20/04/06
TUTU       3500 30/05/06
6 rows selected.
SQL> select ename, dt, sal currmonth,
            case when trunc(lag(dt,1,dt) over (partition by ename order by dt),'MM') = trunc(add_months(dt,-1),'MM')
                 then lag(sal,1,sal) over (partition by ename order by dt)
                 else null end prevmonth
     from   test
SQL> /
ENAM DT        CURRMONTH PREVMONTH
TATA 20/04/06       1500
TATA 30/05/06       2000       1500
TOTO 11/03/06       1002
TOTO 20/04/06       1001       1002
TOTO 30/05/06       1000       1001
TUTU 30/05/06       3500
6 rows selected.
SQL>
SQL> Nicolas.
Just an additional question : do the previous month is current month-1, or is there hole in month suite (e.g. the previous month can be current month-2) ?
Message was edited by:
N. Gasparotto

Binding problem when using NVL function

Hello.
I have a problem with my ADF application (11.1.2.1).
I use VO with a query (database view) - pivot table.
If i use where clause like table.attr = :p_attr, everything works ok.
If i use where clause like table.attr = NVL (:p_attr, table.attr) and put a value in :p_attr (executeWithParam) , query executes as if there is a null value.
Debug console shows:
Binding null of type 12 for "p_attr".
Query with NVL works ok in sqldeveloper.
But in jdev, as if the table attribute isn't bind to bind variable.
If a just remove NVL function, it works.
Any idea?
Thanks.
Regards
Edited by: DejanH on Oct 6, 2011 1:32 PM

Hello.
I enter 50 in p_depart parameter and click "ExecuteWithParams". Query is executed and shows records (pivot table).
But if i look at the log window i see that an empty query was executed first.
<OracleSQLBuilderImpl> <bindParamValue> [427] Binding null of type 12 for "p_depart"
<OracleSQLBuilderImpl> <bindParamValue> [428] Binding null of type 12 for "p_job"
<OracleSQLBuilderImpl> <bindParamValue> [429] Binding null of type 12 for "p_hire_od"
<OracleSQLBuilderImpl> <bindParamValue> [430] Binding null of type 12 for "p_hire_do"
Then, it is autoexecuted for the second time with parameter set to the value i inserted.
<OracleSQLBuilderImpl> <bindParamValue> [470] Binding param "p_depart": 50
<OracleSQLBuilderImpl> <bindParamValue> [471] Binding null of type 12 for "p_job"
<OracleSQLBuilderImpl> <bindParamValue> [472] Binding null of type 12 for "p_hire_od"
<OracleSQLBuilderImpl> <bindParamValue> [473] Binding null of type 12 for "p_hire_do"
The same happens in our query. But ours is much more complex and it takes a lot of time to first execute "empty" query and then with inserted parameter.
We cannot use it.
It looks like bug.
Regards
Edited by: DejanH on Oct 11, 2011 6:52 AM

How to find listing of modules which has used xyz PL/SQL function?

Hi,
How I can find the list of forms/reports which has used xyz pl/sql function?
I want to delete a pl/sql function but before that I would like to
make sure this function is not being used by any forms/report.
Thanks for your help!!
D

There are many tools available for finding out the particular string across many forms in one shot.
One such utility is forms apimaster.
You can download it's 30 days free trial from the internet.

NVL function in use in PL/SQL

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