Dynamic Where Clause in a Procedure

Hi everyone!
I would like to seek an assistance regarding a where clause that
can be set dynamically during runtime in a procedure. Is it
possible that a where clause of a procedure can be passed using
a parameter?
I would appreciate all responses.
Thank you.
Weng
null

Absolutely !
You can do it using dynamic SQL.
Cheer !
TT
Weng (guest) wrote:
: Hi everyone!
: I would like to seek an assistance regarding a where clause
that
: can be set dynamically during runtime in a procedure. Is it
: possible that a where clause of a procedure can be passed using
: a parameter?
: I would appreciate all responses.
: Thank you.
: Weng
null

Similar Messages

Dynamic Where Clause in SQR

How to construct dynamic WHERE clause in our sqr programming ?
In my run control table I am having parameters fromdate, thrudate [mandatory parameters] and location as [Optional Parameter] how can I declare dynamic where clause to achieve this could any one help me with coding ? Here is my sample coding
Begin-Procedure Main
if $prcs_process_instance=' '
do askvalues
else
do getvalues
end-if
End_Procedure Main
Begin-Procedure askvalues
input $frmdate 'Enter From Id' type=text format=number !Mandatory Parameter
input $todate 'Enter To Id' type=text format=number !Mandatory Parameter
input $loc 'Enter Location' value=text !Optional Parameter
End-Procedure
Begin-Procedure getvalues
Begin-Select
FROMDATE
THRUDATE
SQR_LOCATION
let $frmdate=&FROMDATE
let $todate=&THRUDATE
let $loc=&SQR_LOCATION
let where=-------------------------- ?
FROM
PS_PROCESS_TBL WHERE OPRID=$PRCS_OPRID AND RUN_CNTL_ID=$PRCS_RUN_CNTL_ID
End-Select
End-Procedure getvalues
Begin-Procedure selectall
BEGIN-SELECT
SQR_EMPLID
SQR_FNAME
SQR_LNAME
SALARY
FROM
PS_SQR_FIRST_TBL WHERE SQREMPID BETWEEN $frmdate AND $todate
END-SELECT
End-Procedure selectall

SQR will understand Where Clause as dynamic, when you include it in Square Brackets []
In your case, since fromdate & thrudate are mandatory values, I would code like this
let $frmdate=&FROMDATE
let $todate=&THRUDATE
let $loc=&SQR_LOCATION
let $Where_Clause = 'SQREMPID BETWEEN' || ' ' || $frmdate || ' ' || 'AND' || ' ' ||$todate
if $loc != ''
let $Where_Clause = $Where_Clause || ' '|| 'AND' || ' ' || 'LOCATION = ' || $loc
end-if
Now you can use this Dynamic Where Clause in which procedure you want. Only thing is you need to encode the where clause with brackets([$Where_Clause])
Edited by: 935179 on Sep 6, 2012 2:11 AM

How to set dynamic WHERE clause to VO from backingBean?

Hi,
Can any one let me know the best way to add the dynamic WHERE clause in to VO query.
I have created AM (with AMImpl.java) & VO (with VOImpl.java & VORowImpl.java) in my model project. I suppose to set the WHERE condition at runtime while the user click the search button. I am handling the user button click at UI layer backingBean. From the backing bean I could able to get the objct of the VO and set the where clause by below code.
        ValueExpression valueExp = elFactory.createValueExpression(elContext, "#{bindings.UserSearchVO1Iterator}", Object.class);
        DCIteratorBinding dcIter = (DCIteratorBinding)valueExp.getValue(elContext);
        ViewObject userSearchVO = dcIter.getViewObject();
        userSearchVO.setWhereClause("lower(usr_login) LIKE ':1' and usr_udf_suid like ':2' ");
        userSearchVO.executeQuery();But as I fear this is not the right way to do it. So I am creating the cutom method inside the VOImpl.java and triggring that method by creating one more cutom method in AMImpl.java. But I dont know how to invoke this AM method from backingBean.
AMImpl method
public void initDetails()
        UserSearchVOImpl vo = getUserSearchVO1();
        vo.initQuery();
VOImpl method
    public void initQuery()
        setWhereClause("lower(usr_login) LIKE 'a%' and usr_udf_suid like '%1144%'");
        executeQuery();
    }Can any one guide me which is the best way to set the where clause to VO? How to call the AM method from backingBean?
Thanks
kln

i am new to oracle 11g i writing a stored procedure in which i have made use of case in where clause to pass my parameter value v_toStoreID
i have googled a lot regarding that i found that to use case in where clause it should be like this
where
case column_value
when 0
then value1
else
value2
end
this my query
SELECT ITMID as ItemId,
NVL(OrderDtl.PackageID, 0) PackageId,
OrderDtl.OrdDtlID,
(CASE NVL(OrderDtl.PackageID, 0)
WHEN 0
THEN 1
ELSE 0
END) as PackageFlag,
ivitem.Code ItemCode,
ivitem.ITMNAME AS itemName,
IvPatientIssueMst.IssueNo Issue_No,
to_char(Issuedate, 'DD/MM/YYYY') IssueDate,
OrderDtl.OrdQty,
NVL(OrderDtl.AllocationID, 0) Package,
OrderDtl.ServiceAmount MRP
FROM IvPatientIssueMst
JOIN OrderMst
ON IvPatientIssueMst.OrderId = OrderMst.OrdId
JOIN OrderDtl
ON OrderDtl.OrdID = OrderMst.OrdId
JOIN ivitem
ON ivitem.ITMID = OrderDtl.DrugId
LEFT JOIN IVPatientIndentMst
ON IVPatientIndentMst.IndentID = IvPatientIssueMst.IndentId
WHERE OrderMst.OrdVisitID = 395899
AND
*(CASE IvPatientIssueMst.StoreId*
when NVL(IvPatientIssueMst.StoreId, 0)=0
THEN v_toStoreID
ELSE IVPatientIndentMst.ToStoreID
END)
ORDER BY ivitem.ITMNAME;
it is not working please someone help

Creating a dynamic where clause

hello,
I am trying to create a procedure whech needs to parse a dynamic where clause into a cursor. The problem is I do not know the number of items that the user has selected (from previous input), thus what I want to pass in is a string of variables, but I donl;t think I can do this.
Does anyone have any ideas on how I can do this?
Thanks
Bryan
[email protected]
an example of theh code I am trying to run is:
v_update:='UPADTE :tabnam
SET ctrecid = :ctrec';
WHERE :v_and
AND pxlrecno = :strt';
v_cursor2 := DBMS_SQL.OPEN_CURSOR;
DBMS_SQL.PARSE(v_cursor2,v_update,DBMS_SQL.V7);
DBMS_SQL.BIND_VARIABLE(v_cursor2,':tabnam',tabnam);
DBMS_SQL.BIND_VARIABLE(v_cursor2,':ctrec',ctrec);
DBMS_SQL.BIND_VARIABLE(v_cursor2,':v_and',v_and);
DBMS_SQL.BIND_VARIABLE(v_cursor2,':strt',strt);
v_numrows:=DBMS_SQL.EXECUTE(v_cursor);
Where v_and is something like:
item1='TEST1' AND item2='TEST2' AND item3='TEST3'
null

SQL> EDIT update_tabnam
CREATE OR REPLACE PROCEDURE update_tabnam
(tabnam IN VARCHAR2,
ctrec IN VARCHAR2,
v_and IN VARCHAR2,
strt IN VARCHAR2)
IS
v_update VARCHAR2 (3000);
v_cursor2 INTEGER;
v_numrows INTEGER;
BEGIN
v_update := 'UPDATE ' | | tabnam
| | ' SET ctrecid = ' | | '''' | | ctrec | | ''''
| | ' WHERE ' | | v_and
| | ' AND pxlrecno = ' | | strt;
v_cursor2 := DBMS_SQL.OPEN_CURSOR;
DBMS_SQL.PARSE (v_cursor2, v_update, DBMS_SQL.V7);
v_numrows := DBMS_SQL.EXECUTE (v_cursor2);
DBMS_SQL.CLOSE_CURSOR (v_cursor2);
END update_tabnam;
SQL> START update_tabnam
Procedure created.
SQL> EXEC update_tabnam('TEST',7,'ITEM1=''TEST1'' AND ITEM2=''TEST2'' AND ITEM3=''TEST3''',1)
PL/SQL procedure successfully completed.
SQL> SELECT * FROM test;
CTRECID PXLRECNO ITEM1 ITEM2 ITEM3
7 1 TEST1 TEST2 TEST3
Note: Posting on this forum causes spaces to be inserted between the concatenation symbols where they don't belong, so anywhere you see a space between | and | remove it, before saving the file and starting it to create the procedure.
null

Dynamic WHERE clause in SELECT statement

Hi,
I need to extract (SELECT) all the products in different salesorganizations. Since a product can be available in more than 1 salesorg I have created several properties in the PRODUCT dimension - 1 for each salesorganization (naming: Sxxxx where xxxx is the salesorganization number).
Since I need to prefix the salesorganization property with an "S" I have created a property on the SALESORG dimension called SALESORG.
Therefore I need to create a dynamic WHERE clause in the SELECT statement. Currently my script is:
*SELECT(%SORG%, "[SALESORG]",SALESORG, [ID]=%SALESORG_SET%)
*SELECT(%PROD%, "[ID]",PRODUCT, [%SORG%]="X")
My first SELECT find the Sxxx (equal to the property I need in the PRODUCT dimension). My second SELECT uses the variable in the first SELCT statement to use the correct property for the WHERE clause.
Unfortunately the code is not validated - any suggestions?
/Lars

Hi Lars,
If you run it from a DM package without validating it, does it still work? I would bet it does.
If this is the case I would open a message with SAP (it would be an enhancement request). Until they fix the validation code, you would just have to live with the script not validating.
Cheers,
Ethan

Dynamic where clause in my query

I am using a view
select * from vw_pt_inv_customer
My requirement is have a web page where users can search for customers by filling in a form which has the following feilds: - User can fill in the form with all the feilds or not. I want a dynamic where clause.. how can i get this work for me?
Title
Firstname
Surname
Address1
Address2
Postcode
Telephone No

879796 wrote:
I am using a view
select * from vw_pt_inv_customer
My requirement is have a web page What web frame work is used? Apex? Something else?
where users can search for customers by filling in a form which has the following feilds: - User can fill in the form with all the feilds or not. I want a dynamic where clause.. how can i get this work for me?Dynamic where clauses are a Very Bad Idea (tm).
And having an open ended search function on a web page is also not a great idea.
If you are using Apex, the for performance (and even query flexibility) it will be better creating a separate reporting region for each unique query. A boolean rendering condition checks the existing bind variables in order to determine if that specific reporting region should be executed.
This results in a reporting region having a proper and dedicated SQL query (no hacking of the where clause) and that region only being rendered for the proper combination of supplied filter criteria.
A slightly more complex, but more flexible approach, is using a generic reporting region that calls a PL/SQL function that creates returns the SQL query for execution and rendering. The approach to this is very similar to constructing a SQL ref cursor (dynamically) for a client. The only difference is that instead of creating the actual ref cursor, the code simply needs to return the SQL source code statement - with bind variables. The Apex run-time does the rest (does the binds and execution and rendering).
If you are not using Apex - you should still consider these approaches. And not hacking a single SQL to cater for all different types of filter conditions.

Dynamic where clause in select query

Hi
I'm trying for a dynamic query and in the dynamic where clause i'm checking a field for constant.....for instance if i wanna to use WERKS EQ '0478' how to declare it in dync where clause. i tried for the following:
SELECT (TAB_FIELD) INTO TABLE DITAB UP TO 10 ROWS FROM (TAB_NAME) WHERE (CONDI).
heree CONDI = 'werks eq 0287' . in this case the query fails as the werks shud be equal to '0287' and not just 0287. How to handle this? i tried for the following
CONDI = 'werks eq " '0287' " ' but no luck as it is not a valid stmt as i knew.

hi prabhu,
this is how u select dynamically...
DATA: COND(72) TYPE C,
ITAB LIKE TABLE OF COND.
PARAMETERS: CITY1(10) TYPE C, CITY2(10) TYPE C.
DATA WA TYPE SPFLI-CITYFROM.
CONCATENATE 'CITYFROM = ''' CITY1 '''' INTO COND.
APPEND COND TO ITAB.
CONCATENATE 'OR CITYFROM = ''' CITY2 '''' INTO COND.
APPEND COND TO ITAB.
CONCATENATE 'OR CITYFROM = ''' 'BERLIN' '''' INTO COND.
APPEND COND TO ITAB.
LOOP AT ITAB INTO COND.
WRITE COND.
ENDLOOP.
SKIP.
SELECT CITYFROM
INTO WA
FROM SPFLI
WHERE (ITAB).
WRITE / WA.
ENDSELECT.
regards,
sohi

Dynamic Where clause in 4.6C [Literals allowed but not variables]

Good afternoon-
We have a dynamic select statement that works perfectly in 4.7 ext 2, but is causing a short dump in 4.6C. The error in the short dump says:
The current ABAP/4 program attempted to execute an ABAP/4 Open SQL
statement containing a WHERE condition of the form WHERE (itab) or
WHERE ... AND (itab). The part of the WHERE condition specified at
runtime in the internal table itab contains an invalid
value "HDR_COMP_CODE". Literals are allowed as values, but not variables.
HDR_COMP_CODE is in incoming parameter to the function module that is calling this code. It is of type BKPF-BUKRS.
Here is the code:
DATA: BEGIN OF L_WHERE_CLAUSE OCCURS 0,
        TEXT_LINE(60) TYPE C,
END OF L_WHERE_CLAUSE.
CLEAR L_WHERE_CLAUSE.
IF NOT HDR_COMP_CODE IS INITIAL.
    SELECT SINGLE KTOPL
    INTO LV_KTOPL
    FROM T001
    WHERE BUKRS = HDR_COMP_CODE.
    L_WHERE_CLAUSE = 'B~BUKRS = HDR_COMP_CODE'.
    APPEND L_WHERE_CLAUSE.
    CLEAR L_WHERE_CLAUSE.
    L_WHERE_CLAUSE = 'AND'.
    APPEND L_WHERE_CLAUSE.
    CLEAR L_WHERE_CLAUSE.
    L_WHERE_CLAUSE = 'T~KTOPL = LV_KTOPL'.
    APPEND L_WHERE_CLAUSE.
    CLEAR L_WHERE_CLAUSE.
    L_WHERE_CLAUSE = 'AND'.
    APPEND L_WHERE_CLAUSE.
    CLEAR L_WHERE_CLAUSE.
ENDIF.
L_WHERE_CLAUSE = 'T~SPRAS = SY-LANGU'.
APPEND L_WHERE_CLAUSE.
CLEAR L_WHERE_CLAUSE.
SELECT BSAKNR TTXT50
INTO (LT_GL_ACCOUNT_DATA-GL_ACCOUNT, LT_GL_ACCOUNT_DATA-DESCRIPTION)
FROM SKB1 AS B INNER JOIN SKAT AS T
     ON TSAKNR = BSAKNR
WHERE (L_WHERE_CLAUSE).
    APPEND LT_GL_ACCOUNT_DATA.
    CLEAR LT_GL_ACCOUNT_DATA.
ENDSELECT.
This EXACT query works in 4.7, has anyone run into this, or can they tell me why I might be getting the error?
Thanks,
Andy

Well, in this case, unless I'm missing something, you do not requre a dynamic WHERE clause. You can use RANGES instead.
report zrich_0001.
*DATA: BEGIN OF L_WHERE_CLAUSE OCCURS 0,
*TEXT_LINE(60) TYPE C,
*END OF L_WHERE_CLAUSE.
ranges: r_bukrs for t001-bukrs.
ranges: r_ktopl for t001-ktopl.
*CLEAR L_WHERE_CLAUSE.
IF NOT HDR_COMP_CODE IS INITIAL.
clear r_bukrs. refresh r_bukrs.
r_bukrs-sign = 'I'.
r_bukrs-option = 'EQ'.
r_bukrs-low = hdr_comp_code.
append r_bukrs.
SELECT SINGLE KTOPL
INTO LV_KTOPL
FROM T001
WHERE BUKRS = HDR_COMP_CODE.
clear r_ktopl. refresh r_ktopl.
r_ktopl-sign = 'I'.
r_ktopl-option = 'EQ'.
r_ktopl-low = lv_ktopl.
append r_ktopl.
*L_WHERE_CLAUSE = 'B~BUKRS = HDR_COMP_CODE'.
*APPEND L_WHERE_CLAUSE.
*CLEAR L_WHERE_CLAUSE.
*L_WHERE_CLAUSE = 'AND'.
*APPEND L_WHERE_CLAUSE.
*CLEAR L_WHERE_CLAUSE.
*L_WHERE_CLAUSE = 'T~KTOPL = LV_KTOPL'.
*APPEND L_WHERE_CLAUSE.
*CLEAR L_WHERE_CLAUSE.
*L_WHERE_CLAUSE = 'AND'.
*APPEND L_WHERE_CLAUSE.
*CLEAR L_WHERE_CLAUSE.
ENDIF.
*L_WHERE_CLAUSE = 'T~SPRAS = SY-LANGU'.
*APPEND L_WHERE_CLAUSE.
*CLEAR L_WHERE_CLAUSE.
SELECT B~SAKNR T~TXT50
INTO (LT_GL_ACCOUNT_DATA-GL_ACCOUNT, LT_GL_ACCOUNT_DATA-DESCRIPTION)
FROM SKB1 AS B INNER JOIN SKAT AS T
ON T~SAKNR = B~SAKNR
WHERE b~bukrs in r_bukrs
and t~ktopl in r_ktopl.
APPEND LT_GL_ACCOUNT_DATA.
CLEAR LT_GL_ACCOUNT_DATA.
ENDSELECT.
Regards,
Rich Heilman

How to add a dynamic where clause for a sql based VO with group by query?

Hi,
Here is my case, I have a sql query based VO with the query like "select status, count(*) StatusCount from my_table group by status". Now I used the following java code trying to dynamically add the where clause to my VO to filter the rows based the type attribute in my DB table.
vo.setWhereClause("type='MyType1' ");
vo.executeQuery();
Then I got the sql syntax error. Looks like the ADF has added the where clause to the end of my sql so my sql becomes "select status, count(*) StatusCount from my_table group by status where type='MyType1' ". But what I expected was the correct syntax "select status, count(*) StatusCount from my_table where type='MyType1' group by status".
Does anyone know if this is an ADF bug? Or is there any other way to achieve my goal?
Thanks,
Chunyang
Edited by: Chunyang on Dec 13, 2012 9:09 PM

Hi,
When you use setWhereClause on the VO, it is applied on top of the VO query. I.e, assume your VO has the following query.
select empno, ename from empNow, if you apply the where clause programatically, only the two attributes that you are using in the select statement could be used. I.e
select * from (select empno, ename from emp) where ename='KING' - VALID
select * from (select empno, ename from emp) where deptno=10 - INVALID (because the inner query - the one you've defined as query for your vo does not have deptno attribute selected)If you would need to set a dynamic where clause, you need to make them available in your select statement / use bind variables.
-Arun

Dynamic WHERE Clause in a Calendar

I would like to have a Calendar display values based on a dynamic WHERE clause created using PL/SQL anonymous block evaluating the values of items that the user uses as filters. I have done this dynamic SQL for reports and would lke to do the same for a Calendar.

I figured out how to do this.
I created a Hidden Item with the source value of &APP_USER.
named P50_APP_USER.
This is how my query looks now:
SELECT * FROM APX_EVENT WHERE APX_EVENT.STORE_NR IN (SELECT APX_Z.STORE_NR FROM APX_Z WHERE APX_Z.USERNAME = :P50_APP_USER)
And it works.
I got the answer from this thread:
CALENDAR - SQL ORDER BY CLAUSE NOT WORKING

How to create VO with multiple dynamic where clauses on select with UNION?

I am trying to implement the View Object for the UNION query that looks like this:
     select a,b,c...
          from t1,t2,...
          where dynamic_where_clause1
     union all
     select a,b,c,...
          from t11,t12, ...
          where dynamic_where_clause2
There are up to 60 input parameters that are used to generate dynamic where clauses. They are actually created by calling PL SQL function.
So far, I was not able to assign both where clauses to the view object. Is there a workable solution for this problem, besides resorting to programmatic View Object?
I understand that recommended way with UNIONs is to wrap both queries into a parent select:
select * from (
     select a,b,c...
          from t1,t2,...
          where ... -- table relationship joints
     union all
     select a,b,c,...
          from t11,t12, ...
          where ... -- table relationship joints
) QRSLT
     where dynamic_where_clause
Unfortunately this approach doesn't work here, since individual selects are producing unmanageable amount of data and resulting query takes forever to complete.

I afraid I would not have any real benefits from using VO if I replace the entire query with every request. Actually, the performance may suffer.
I solved the problem by creating a POJO Data Control and invoking the custom select query from java. Not sure if it is the best approach to the problem, but implementation time is limited and it works.
Actually, this is not the first time I see the need to implement VO with complicated SQL like select with unions and dynamic pieces. It would be nice to find a solution and not resort to workarounds.
Edited by: viksicom on Aug 2, 2012 8:48 AM

Dynamic where clause in "delete itab where..." variant

Hi, I need to be able to delete the contents of an internal table based on a dynamic where clause. I don't want to loop through the entire table to test each record. Since the delete statement doesn't seem to allow a dynamic "where" clause I am trying to use a macro. I can't get the macro to work either.
I get the following error in my syntax check:
Statement concluding with "...FINAL_STATEMENT" ended unexpectedly.
Is there any way to get this macro to pass the syntax text or accomplish the dynamic delete?
MACRO TO FILTER OUT UNWANTED RECORDS (RETAIL OUTLETS)
DEFINE DELOUT.
    DELETE MY_ITAB WHERE &1.
END-OF-DEFINITION.
Example FINAL_STATEMENT = ( ZRRDIVIS = '4' )
USING MACRO DOES NOT PASS SYNTAX CHECK
DELOUT FINAL_STATEMENT.

Well, if you really need this kind of functionality, here is a code sample that I just threw together that would work. A lot of code for one little delete statement though.
report zrich_0001 .
data: begin of itab occurs 0,
      fielda type c,
      fieldb type c,
      fieldc type c,
      end of itab.
data: where_clause type string.
class lcl_source definition.
public section.
    types: t_source(72).
    class-data: routine(32) value 'TEMP_ROUTINE',
                program(8),
                message(128),
                line type i.
    class-data: isource type table of t_source,
                xsource type t_source.
    class-methods: execute_source importing im_clause type string.
endclass.
start-of-selection.
* Build the itab.
itab-fielda = '1'.
itab-fieldb = '2'.
itab-fieldc = '3'.
append itab.
itab-fielda = '3'.
itab-fieldb = '2'.
itab-fieldc = '1'.
append itab.
* Set the where clause
where_clause = 'FIELDA = ''1''.'.
* call the delete statement.
call method lcl_source=>execute_source
            exporting
                im_clause = where_clause.
*       CLASS lcl_source IMPLEMENTATION
class lcl_source implementation.
method execute_source.
    xsource = 'REPORT ZTEMP_REPORT.'.
    insert xsource into isource index 1.
    xsource = 'FORM & tables itab.'.
    replace '&' with routine into xsource.
    insert xsource into isource index 2.
    xsource = 'Data: begin of xitab occurs 0,'.
    append xsource to isource.
    xsource = 'fielda type c,'.
    append xsource to isource.
    xsource = 'fieldb type c,'.
    append xsource to isource.
    xsource = 'fieldc type c,'.
    append xsource to isource.
    xsource = 'end of xitab.'.
    append xsource to isource.
    xsource = 'xitab[] = itab[].'.
    append xsource to isource.
    concatenate 'DELETE xITAB WHERE' im_clause into xsource
                  separated by space.
    append xsource to isource.
    xsource = 'ENDFORM.'.
    append xsource to isource.
    generate subroutine pool isource name program
                             message message
                             line line.
    if sy-subrc = 0.
      perform (routine) in program (program) tables itab.
    else.
      write:/ message.
    endif.
endmethod.
endclass.
Regards,
Rich Heilman

Dynamic where clause in Loop

Is iot possible to use a dynamic where clause in a loop? If so how to you code this?
i.e. Loop at itab in wa where (dynamic_where_clause)...
    endloop...
Moderator message: please read ABAP documentation for your SAP release.
Edited by: Thomas Zloch on Mar 29, 2011 3:20 PM

You should be aware that a LOOP AT ... WHERE is not an optimized access .
+ because on a standard table there is not sort order,
   so the loop goes over the whole table and does
   something when the condition is fulfilled
+ it is optimzed for sorted tables, but only for one key!
=> so your idea must have bad performance!
If this is not a problem, then you can solve the problem
in the following way:
loop at table
   if ( dynamic condition )
   endif.
endloop.
But maybe is dynamic condition is not necessary, but
a some fixed if-conditions are also o.k.
Siegfried

ADF dynamic where clause for VO query using BC

I'm hoping someone can help me out. I have a read only view object that I want to filter results based on some user choices. For example the user may want to see all results or they may only want to see a much smaller subset. This is for an error dashboard, the smaller subset maybe by application or maybe by application and by error severity. I think I can use a dynamic where clause but I'm not sure, Can someone get me started down the right path, or post an example that I can see.

Hi user,
You can use a dynamic where clause for this, but maybe there is a more practical option. Maybe you can have a fixed where clause, but using a bind parameter, like:
vo.application like :applicationParam. This makes an executeWithParams method available that you can call from your page, and use in the bindings. This parameter you can populate with the results of for example a poplist, with a default value of '%'.
When you do want to use a dynamic where clause, you will need to add a method to the java code of your application module, and make this method available for the client. In this method, you can use findViewObject to retrieve your VO, use VO.setWhereClause to set the whereclause to what you want, and then call VO.executeQuery. This method can then again be called from the page.
Success,
Jeroen van Veldhuizen

Dynamic where clause for MULTIPLE values

In the following of dynamic where clause?
i have some somewhat different problem.
Is a dynamic where clause for multiple values possible?
If the inputvariable varCode1,varCode2,varCode3,varCode4 are 0 then show all id's otherwise filter the resultset on var1 and/or var2,and/or var3,and/or var4.
Example table:
create table t
(d int,var int);
insert into t values (1 ,1 );
insert into t values (2 ,1 );
insert into t values (3 ,2 );
insert into t values (4 ,3 );
insert into t values (5 ,4 );
insert into t values (6 ,4 );
insert into t values (7 ,4 );
insert into t values (8 ,4 );
insert into t values (9 ,5 );
insert into t values (10, 6);
insert into t values (11, 6);
So what i want to change the where clause upon the value of the varCodes. If var1 and var are not 0 a "AND" should be used otherwise an "OR"
select id
from tst
where var = DECODE( :varCode1, 0, var, :varCode1)
or/and(?) DECODE( :varCode2, 0, var, :varCode2)
or DECODE( :varCode3, 0, var, :varCode3)
or DECODE( :varCode4, 0, var, :varCode4)

Please turn off your Caps Lock
and try this link
Dynamic WHERE clause

Dynamic Where Clause in a Procedure

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