Dynamic where clause in database adapter

Hi
I have requirement to develop SOA service for search page! The back-end query for search is required to have where clauses to be appended to SELECT statement dynamically depending upon search criteria the user selects!
E.g. if user is searching employee from a portal! If employee selects mobile number of the employee, or joining date range or other criteria, then accordingly appropriate clauses are to be appended to SEARCH SELECT statement.
Can we achieve same while implementing executing database query through database adapter from BPEL service?
Thanks In Advance
Priyadarshi

It is difficult using the standard database adapter approach. You may have to use nested sql queries.Following is a good example of the same.
Neeraj Sehgal - Experimenting with SOA: Pass multiple parameters, dynamic query in Pure SQL in Database Adapter
If your only problem in using this that you are hard coding the connection details , you can use the datasource jndi name in the query. hence you will not be required to change your code when moving from one env to other env. You just have to take care of keeping the jndi name same in all the env.

Similar Messages

Dynamic where clause in Database Adapter, or workaround?

Hello friends,
Is there any way to change where clause in Database Adapter (DA) dynamically.
For e.g. i do have Database Adapter with sql statement: select col1,col2 from my_table. Originally i have many parameters which are not mandatory so instead of creating where clause in DA like:
select col1, col2 from my_table where+
*((#p_col_1 is not null and #p_col_1=col1) or #p_col_1 is null)*
and ...
and ((#p_col_n is not null and #p_col_n=col_n) or #p_col_n is null)
i would like to create a where clause dynamically depend on what parameters are not empty or receive where clause as parameter. Is it possible? Are there any others workarounds you can suggest?
will appreciate any thoughts...

Thanks Deepa for the links, their where quite helpful. And i must admit this partially answers my question (at least example i provided).
However - how about if i'd like to use LIKE clauses instead of =, or IN or NOT IN? e.g:
select col1, col2 from my_table where+
((#p_col_1 is not null and #p_col_1 LIKE col1) or #p_col_1 is null)
and ...
and ((#p_col_n is not null and col_n IN #p_col_n) or #p_col_n is null)
Is it possible?
thanks in advance

Conditional where clauses in database adapter

I am trying to write a query in a database adapter that allows for conditional where clauses. Specifically, I want to include or not include a where clause (and clause) if an input variable is empty or not. Can a prepared statement with lexical parameters be used in a database adapter? Or is there another way to do this?
Thanks in advance.

I am afraid that you can only bind parameters to the SQL, you can't bind the SQL itself to the SQL. We do have QueryByExample support, where based on what fields are set in an example object, it will construct a different SQL select.
If you pass in
<Address>
<street/>
<city>
<state>CA</state>
</Address>
it will return all addresses in California. If you pass in:
<Address>
<street/>
<city>Los Angeles</city>
<state/>
</Address>
it will return all addresses in Los Angeles.
Thanks
Steve

Build dynamic SQL query in Database Adapter.

Hi All,
I have a requirement to build dynamic sql query at Database Adapter.
My BPEL process is getting search spec as input from siebel. I need to process this searchspec in BPEL and need to build the SQL query dynamically at Database Adapter to fetch the records from DB.
it goes like this....
1. Sieble Search Spec: city1 OR city2 OR city3 OR city4 .....
I need to build query as
select * from S_ADDR_PER where city like 'city1' OR city like 'city2' OR city like 'city3' OR city like 'city4' ......
2. Siebel Search spec: city1 AND country1 AND state1....
I need to build query as
Select * from S_ADDR_PER where city like 'city1' AND country like 'country1' AND state like 'state1' ....
3. Siebel Search spec: state
I need to build query as
select * from S_ADDR_PER where state like '%state%';
Is it feasible in Database Adapter? if its Yes.
Any guidelines to achieve this?
Thank you
Chandra

Hi All,
I have a requirement to build dynamic sql query at Database Adapter.
My BPEL process is getting search spec as input from siebel. I need to process this searchspec in BPEL and need to build the SQL query dynamically at Database Adapter to fetch the records from DB.
it goes like this....
1. Sieble Search Spec: city1 OR city2 OR city3 OR city4 .....
I need to build query as
select * from S_ADDR_PER where city like 'city1' OR city like 'city2' OR city like 'city3' OR city like 'city4' ......
2. Siebel Search spec: city1 AND country1 AND state1....
I need to build query as
Select * from S_ADDR_PER where city like 'city1' AND country like 'country1' AND state like 'state1' ....
3. Siebel Search spec: state
I need to build query as
select * from S_ADDR_PER where state like '%state%';
Is it feasible in Database Adapter? if its Yes.
Any guidelines to achieve this?
Thank you
Chandra

Dynamic where clause problem?

Hi all,
I am using 4 parameters for the attrition rate report of an employee on the selection screen.
Level
Grade
Position
Salary Range (pa0008-ansal)
i have filled the values of level, grade, position, from database tables at the initialization event.
And for the salary range i hardcoded them to 0-5000, 5001-10000 etc.. and so on.
and then showed all 4 parameters are listbox on the selection screen.
now the first 3 parameters are from infotype pa0001 and the last is from pa0008.
Now I want to select pernr, persg ,persk ,plans, begda ,endda fields from infotype pa0001, and 'ansal' field from pa0008 , with the help of a dynamic where clause, is it possible, because here it might be needed for a join as well.
Please help me out with some sample coding help.
Regards
Tarun

DATA: lv_query TYPE string.
lv_query = ' '.
IF position IS NOT INITIAL.
    IF lv_query IS NOT INITIAL.
      CONCATENATE lv_query ' and p1~plans eq   position ' '' INTO lv_query.
    ELSE.
      CONCATENATE ' p1~plans eq position ' '' INTO lv_query.
    ENDIF.
ENDIF.
IF grade IS NOT INITIAL.
    IF lv_query IS NOT INITIAL .
      CONCATENATE lv_query ' and p1~PERSK eq grade ' '' INTO lv_query.
    ELSE.
      CONCATENATE ' p1~PERSK eq grade ' '' INTO lv_query.
    ENDIF.
ENDIF.
IF level IS NOT INITIAL.
    IF lv_query IS NOT INITIAL .
      CONCATENATE lv_query ' and p1~PERsg eq level ' '' INTO lv_query.
    ELSE.
      CONCATENATE ' p1~PERsg eq level ' '' INTO lv_query.
    ENDIF.
ENDIF.
IF sal_slab IS NOT INITIAL.
    SELECT pernr ansal begda endda FROM pa0008 INTO CORRESPONDING FIELDS OF TABLE lt_st_p8 WHERE ansal = sal_slab.
    *IF lv_query IS NOT INITIAL .*
      *CONCATENATE lv_query ' and p8~ansal le sal_slab ' '' INTO lv_query.*
    *ELSE.*
      *CONCATENATE ' p8~ansal le sal_slab ' '' INTO lv_query.*
    *ENDIF.*
ENDIF.
SELECT p1~pernr
    p1~persg p1~persk p1~plans p1~begda p1~endda
     p8~ansal
INTO CORRESPONDING FIELDS of TABLE lt_st_p1_p8
    FROM pa0001 AS p1 JOIN pa0008 AS p8 ON p1~pernr = p8~pernr
    WHERE (lv_query) .
<Added code tags>
Now in case of salary slab, i have ranges like 0-5000 , 5001-10000 and so on and I showed it as a listbox on sel. screen.
So how can I read the figure after the '-'?????
And also review, if for the previous 3 parameters it is correct, or it can be shortened and accurated.
Edited by: Suhas Saha on Dec 28, 2011 1:44 PM

Loop with dynamic where clause

hi,
In a program we need to use a loop into an internal table with a where condition is decided on run time.
"Select" from database table is using dynamic where clause and it is working fine.
For the loop part does any one have any idea on this? if we can have dynamic where clause in a loop into internal tab?
Thanks

Hi,
You can't use 'loop where' dynamically .
Have you already tried to use Ranges and CHECK statement?
Like:
First mount range options;
Loop at <table>.
Check using the range.
endloop.
Maybe it's works for you !!
Marcelo Ramos

Dynamic Where clause - from third party system

I have internal table A with fields I am getting from legacy system
field1
field2
field3
field4
fieldn
and i am getting a condition table (Where clause conditions) from a legacy system thru an RFC call.
and in the RFC i need to delete records from internal table A using this where clause
and where clause condition table(is 72 char length single field table) from legacy system looks like the following
         ( FIELD1                          BETWEEN '01' AND '05' ) AND
     FIELD1                         NE '06'
     AND ( FIELD4                     EQ 'BU' )
     AND ( FIELD5                      BETWEEN '001' AND '009' )
How could i delete entries from internal table A using this where clause conditon table mentioned above
a®

Hi a®s,
yes, thats what I thought of: Generate subroutine Pool.
I did not elaborate on the fact that dynamic where clauses are allowed only for database selections. That means that FUNCTION 'FREE_SELECTIONS_WHERE_2_RANGE' can't be used either.
But if you generate a subroutine, you can generate TYPE and DATA declarations as well. This gives you the ability to have static where condition for the DELETE itab WHERE statement.
If the type vaies during runtime, the generation may vary too.
I think you are able to do the coding for this.
On the other hand, Thomas' 'slick' proposal using a temporary database table and a subsequent SELECT ... WHERE (<dynamic where clause) may be easier to implement.
BTW: Are ther release notes on ABAP720?
Regards,
Clemens

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 database adapter

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