Dynamic query building

I am working on an application these days where I am using some existing SQL queries to access the database to grab information out of it, mostly to generate reports.
1) These queries are extremely lengthy and cumbersome. Sometimes upto 18-25 lines long
2) The queries are supposed to change dynamically since the query would change with different portfolio combinations and assetType combinations or things like that. So this caveat has to be fixed programmatically as well.
3) Now if you ask to rewrite the queries or normalize the data more that would not be possible, cause of some business reasons which are beyond the scope of this thread.
Now when this QueryBuilder was written thanks to the tons of options it is coming out to be very complicated with queryBuffer and tons of if else statemements appending to the queryBuffer.
What would ou suggest to make this simple. Any tools or frameworks you would recommend? or anything else if you came across a similar situation.
But the suggestion should be on the application layer and not beneath it since as mentioned earlier database normalization is not possible right now for business reasons.
On a side note it is jdk1.5 and Spring based, where jdbc templates are being used to access db just incase you would need these details.
Thanks

kilyas wrote:
As I mentioned these queries are upto 18 to 19 lines long, do you still think hibernates Criteria API would be helpful?Presumably, the length of the query isn't actually the issue, more the complexity of the query. The Criteria API lets you build up queries in manageable chunks. I won't swear it's Teh Solution ™, but it's definately worth investigating

Similar Messages

Dynamic Query in Report Builder

HI
I have a doubt:
I need to receive a parameter in my report and I need this parameter in the query, that means, I need to create a dynamic query depending on the value that I receive in one of the parameters that has my report.
I tried to use the resource of Searching by Reference Cursor tool, it is a blue circle in the Data Model View of Report Builder.
When I click this tool, I have an initial code, It is:
function QR_1RefCurDS return <RefCurType> is
begin
end;
In PL/SQL I tried to create to test and to play, this code:
Note: If you want to try only to test, it is simple and works:
create or replace package TEST_REFCURTYPE as
type refcurtype is ref cursor;
function TEST_REFCURTYPE (P_DATE_TO nvarchar2) return refcurtype;
end;
create or replace package body TEST_REFCURTYPE as
function TEST_REFCURTYPE (P_DATE_TO nvarchar2)
return refcurtype is
refcur refcurtype;
mysql varchar(1000);
begin
If P_DATE_TO is not null then
mysql := 'select '''|| P_DATE_TO ||''' from dual';
else
mysql := 'select sysdate from dual';
end if;
open refcur for mysql;
return refcur;
end;
end;
The problem is to pass this example of code to the function QR_1RefCurDS, I do not have a place to make reference to the type:
type refcurtype is ref cursor;
I tested the Unit Program in the Report Builder but it did not work, because all the code I try to write and create, for example in the Event BEFORE REPORT, it opens  Funcion( ) …., and I can not make reference to the type refcurtype inside a Function( ).
Would you help me please?
Or there is another way to make a dynamic query in the Report Builder?
Sorry for my English, I am a Brazilian living in Spain.

Hi,
you can use lexical parameters in your queries. Instead of a ":" use in the query before the parameter a "&". Then the parameter stands for a part of the query and not for a value (Bind parameter). In the before report trigger you can set this parameters. They can contain parts of SQL like order or where. Make sure that the default value for this lexical parameters are set to get a valid query.
SELECT ENAME, &p_column as COL2 FROM EMP &p_order
and in the trigger something like
IF :p_which_column = 1 THEN
:p_column := 'SAL'
ELSE
Saludos
Rainer

Building a dynamic query

I have a need to build a truly dynamic query, that would be able to take online form input and create a query that would handle data requests like, How many employees earn less than #some salary, have a masters degree, and speak chinese. or show me all the employees in org A that are vets.
A true ad hoc query tool.
the back end is oracle 11g, the database contains about 8 or 9 tables all total there about 500 records that will be searched. we are running CF7.
I just started kicking this around today so I am open for Ideas. add filters in the where clause, i got that, start with 1=1 and use conditional statements to add filters as necessary. setting up the Select and From statements, need help there.
Since this is a small db, I thout about, but scrapped, making a super-view to query from.
your thoughts and suggestions would be greatly appreciated.
thanks
jb

What about something like this:
1) Determine what tables are going to be involved (visual GUI/drag & drop interface for the users?)
2) Have a table that defines the relationship between the other tables in your database - once the table selection is made by the user, you can query this table to determine what columns you are going to join on. Obviously this won't allow you complete customization but it would work for the scenarios you describe.
3) Use your database system properties to retrieve the field names from your included tables
4) Allow your users to add "filters" based on the fields retrieved in (3)
e.g. You could use an interface to allow users to add a filter, where you display a list of fields from your tables and allow them to apply a simple filter to them - keep it simple (=, !=, >, <)
for bonus points, you could limit the options based on the field type (checkboxes for bit fields, etc)
sanitize the user input - find a SQL-safe reg exp script to handle any unwanted characters (I'm looking at you apostrophe).
5) Don't try an support aggregates if you don't need to - users can load the results into excel and manipulate them to their hearts content.
6) Build your SQL using the selections made by the user. Import all records from your joined tables. Use the table from (2) to determine which fields they join on. and build your where clause using the filters the user created in steap (4). Again, be sure anything not explicitly set by the system is sanitized prior to making its way into the SQL.
7) Execute() your SQL inside a CF query. Expect pretty poor performance, since most SQL databases won't optimize a query plan from a dynamic SQL evaluation.
You could build this as a multi-step wizard in CF, but it would be pretty flashy as a jQuery/web service based application.

Build dynamic query depending upon selection of table and columns

Hi ,
I want your views on following requirement :
we r doing generic export to excel functionality .
1.User will select multiple tables and according to tables ,columns on that table will select
2.There can be multiple table
3.depending upon column and table selection , we have to build dynamic query and execute .
Please let me know is it possible .If yes then please tell me how to do above requirement.
Thanks in advance

Hi,
Identifiers cannot be used as bind variables, query are parsed
before evaluate bind variables. Identifiers like table name.
For excel you can use some like this:
SET MARKUP HTML ON ENTMAP ON SPOOL ON PREFORMAT OFF
SPOOL test_xls.xls
SELECT colum1||chr(9)||columN FROM tableName;
or CSV:
SELECT colum1|| ',' ||columN FROM tableName;
SPOOL OFF
SET MARKUP HTML OFF ENTMAP OFF SPOOL OFF PREFORMAT ON
For construct the query i suggest to read "Dynamic SQL Statements":
http://www.java2s.com/Tutorial/Oracle/0440__PL-SQL-Statements/0300__Dynamic-SQL.htm
http://docs.oracle.com/cd/B28359_01/appdev.111/b28370/dynamic.htm
http://docs.oracle.com/cd/B10500_01/appdev.920/a96590/adg09dyn.htm
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:227413938857
--sgc

Query Builder dynamicly change the request

Hello,
I use VS2010 with ODT 11.2.0.1.1 and I have strange behaviour with the "Query Builder"...
When I enter this request:
SELECT ARTICLE_PCH.AP_CODE ....ARTICLE_SAP.AS_USAGE_UNIQUE
FROM ARTICLE_SAP, ARTICLE_PCH
WHERE ARTICLE_SAP.AS_NUMERO = ARTICLE_PCH.AS_NUMERO ( + ) AND (ARTICLE_SAP.AS_CIRCUIT = 'SAD') AND (ARTICLE_SAP.AS_SUPRESSION IS NULL) AND
(ARTICLE_SAP.AS_FAMILLE 'ZEPS') AND (ARTICLE_PCH.AP_CODE IS NULL)
ORDER BY ARTICLE_SAP.AS_LIB_40
The query builder add a ( + ) before the "IS NULL"
Like This
SELECT ARTICLE_PCH.AP_CODE ....ARTICLE_SAP.AS_USAGE_UNIQUE
FROM ARTICLE_SAP, ARTICLE_PCH
WHERE ARTICLE_SAP.AS_NUMERO = ARTICLE_PCH.AS_NUMERO ( + ) AND (ARTICLE_SAP.AS_CIRCUIT = 'SAD') AND (ARTICLE_SAP.AS_SUPRESSION IS NULL) AND
(ARTICLE_SAP.AS_FAMILLE 'ZEPS') AND (ARTICLE_PCH.AP_CODE ( + ) IS NULL)
ORDER BY ARTICLE_SAP.AS_LIB_40
And then the request return a wrong result. When I test with sqlplus the request without the ( + ) return the good result. But I can't enter the request because the query builder automaticaly modify my request...
Did someone have the same problem with this beta of ODT ?
With the previous version of ODT I don't have the problem.
Thanks in advance
Jeff

Hi Jeff,
Our engineers are looking into this. Right now, it appears this change is being done by Query Builder itself (eg there may be nothing we can do to stop it). This did not happen in VS2008.
However if you change your original query to the equivalent using the "LEFT OUTER JOIN" keywords, you can avoid this problem entirely:
For example:
From:
SELECT EMP.ENAME, EMP.JOB, EMP.MGR, DEPT.DNAME, DEPT.LOC
FROM EMP, DEPT
WHERE EMP.DEPTNO = DEPT.DEPTNO (+) AND (DEPT.DNAME IS NULL)
ORDER BY EMP.ENAME
To:
SELECT EMP.ENAME, EMP.JOB, EMP.MGR, DEPT.DNAME, DEPT.LOC
FROM EMP LEFT OUTER JOIN
DEPT ON EMP.DEPTNO = DEPT.DEPTNO
WHERE (DEPT.DNAME IS NULL)
ORDER BY EMP.ENAME
Can you try this with your query? We will follow up with MS to find out if there is anything we can do to stop Querybuilder from changing the query in VS2010.
Thanks,
Christian

Help on performance with dynamic query

Hi All,
We are using SQL Server 2008R2. In our one of report we are using Dynamic query and it is taking more time to retrieve the data. to retrieve 32 records it is taking 13-15 secs. In my observation in a table variable, created more than 60 columns. In
the SP called one more sp with insert statement.
Please let me know how i can improve performance of the SP.
I know that i have to provide the SP for observation but unfortunately I cannot provide the SP. Please guide me how i can achieve this .
I tried with temp tables by creating indexes on temp tables but i couldn't find improvement in performance.
Waiting for valuable replies.

First of all a "dynamic query" is not "a query" - it is a multitude of them. Some of them may be fast, others may be slow.
There is of course no way we can give specific suggestions without seeing the code, the table and index definitions etc.
We can only give the generic suggestions. As for the code, make sure that you are using parameterised SQL and you are not building a complete SQL string with parameters and all. If nothing else, this helps to make the code more readable and maintainable.
It also protects you against SQL injection. And it also helps to prevent performance issue due to implicit conversion.
You will need to look at the query plan to see where the bottlenecks may be. You should look at the actual query plan. Note that the thickness of the arrows are more relevant than the percentages you see; the percentages are only estimates, and estimates
are often off. Next step is to see if you can add indexes to alleviate the situation. You should also analyse if there are problems in the query, for instance indexed columns that are entangled in expression. If you are using views, make sure that you don't
have views built on top of views etc. This can often result a table appearing multiple times in a query, when one would be enough.
Erland Sommarskog, SQL Server MVP, [email protected]

Dynamic Query

Dynamic Query
When I run the following dynamic query in the stored procedure and try to build the report then I get the following error Rep:1401 Fatal PL/SQL error occured, Ora-00936 Missing expression. When I am generating the report standalone using the following query , everything is working fine but in Stored procedure , it's giving me the above error, pls help.
create or replace package REP_DELIVERY_LOC_STATISTICS is
TYPE REP_DELIVERY_LOC_STAT_rec IS RECORD(
p_coordinating_facility_id sis_education_pgm_session.coordinating_facility_id%TYPE,
p_PSE_MUNICIPALITY_ID pse_education_pgm_session.PSE_MUNICIPALITY_ID%TYPE,
p_pse_education_pgm_session_id sis_education_pgm_session.pse_education_pgm_session_id%TYPE,
p_course_session_id course_session.course_session_id%TYPE);
TYPE REP_DELIVERY_LOC_STAT_cur IS REF CURSOR RETURN REP_DELIVERY_LOC_STAT_rec;
Type REP_DELIVERY_LOC_STAT_cur_Dyn is REF CURSOR;
FUNCTION REP_DELIVERY_LOC_STATISTICS(p_college_id IN pse_education_pgm_session.delivery_institution_id%TYPE,
p_start_date IN pse_education_pgm_session.session_strt_dte%TYPE,
p_end_date IN pse_education_pgm_session.session_strt_dte%TYPE,
p_coord_facility_join IN varchar2) return REP_DELIVERY_LOC_STAT_cur_Dyn;
end REP_DELIVERY_LOC_STATISTICS;
create or replace package body REP_DELIVERY_LOC_STATISTICS is
FUNCTION REP_DELIVERY_LOC_STATISTICS(p_college_id IN pse_education_pgm_session.delivery_institution_id%TYPE,
p_start_date IN pse_education_pgm_session.session_strt_dte%TYPE,
p_end_date IN pse_education_pgm_session.session_strt_dte%TYPE,
p_coord_facility_join varchar2) return REP_DELIVERY_LOC_STAT_cur_Dyn IS
REP_DELIV_LOC_STAT_CUR_Dyn_Q REP_DELIVERY_LOC_STAT_cur_Dyn;
BEGIN
OPEN REP_DELIV_LOC_STAT_CUR_Dyn_Q FOR
'SELECT distinct
seps.coordinating_facility_id,
peps.PSE_MUNICIPALITY_ID,
seps.pse_education_pgm_session_id,
cs.course_session_id
FROM pse_education_pgm_session peps,
sis_education_pgm_session seps,
course_session cs,
facility fac,
desc_sis_reporting_area depa,
desc_sis_reporting_type dept,
pse_education_program pep
WHERE peps.delivery_institution_id (+) = ' || p_college_id
|| ' and peps.session_strt_dte between ' ||p_start_date||' and ' || p_end_date
|| ' and seps.coordinating_facility_id = fac.facility_id (+)
and seps.pse_education_pgm_session_id (+) = peps.pse_education_pgm_session_id
and seps.pse_education_pgm_session_id = cs.pse_education_pgm_session_id (+)
and pep.pse_education_program_id = peps.pse_education_program_id
and dept.desc_sis_reporting_area_id = depa.desc_sis_reporting_area_id
and pep.desc_sis_reporting_type_id = dept.desc_sis_reporting_type_id
and dept.desc_sis_reporting_area_id = depa.desc_sis_reporting_area_id
and fac.desc_facility_id in (2,3)' || NVL (p_coord_facility_join, '1=1');
return REP_DELIV_LOC_STAT_CUR_Dyn_Q;
END;
end REP_DELIVERY_LOC_STATISTICS;

I would sugest to grab a book like
Inside Microsoft SQL Server 2008 T-SQL Querying (chapter 12 - Graphs, Trees, Hierarchies and Recursive Queries) or
Joe Celko's Trees and Hierarchies in SQL for Smarties to get familiar with how model hierarchies using SQL.
What is the meaning of the asterisks in the path?
Here is a dirty example using the Adjacency List model.
SET NOCOUNT ON;
USE tempdb;
GO
CREATE TABLE dbo.T1 (
id int NOT NULL UNIQUE CLUSTERED,
name varchar(50),
rootid int NULL
INSERT INTO dbo.T1 (id,name,rootid)
SELECT 1, 'animals', NULL
UNION ALL
SELECT 2, 'mamal', 1
UNION ALL
SELECT 3, 'cephalopod mollusc', 1
UNION ALL
SELECT 4, 'salt water fish', 1
UNION ALL
SELECT 5, 'fresh water fish', 1
UNION ALL
SELECT 6,'whale', 2
UNION ALL
SELECT 7,'pirana', 5
UNION
SELECT 8,'shark', 4
UNION
SELECT 9, 'octopus', 3;
GO
WITH Tree AS (
SELECT
id, name, rootid,
CAST('/' + [name] + '/' AS varchar(900)) AS mat_path
FROM
dbo.T1
WHERE
rootid IS NULL
UNION ALL
SELECT
C.id, C.name, C.rootid, CAST(P.mat_path + C.name + '/' AS varchar(900))
FROM
Tree AS P
INNER JOIN
dbo.T1 AS C
ON P.id = C.rootid
SELECT
FROM
Tree
ORDER BY
mat_path;
GO
DROP TABLE dbo.T1;
GO
Excuse my poor knowledge of zoology or animal biology.
AMB
Some guidelines for posting questions...
AYÚDANOS A AYUDARTE, guía básica de consejos para formular preguntas

How to enhance Dynamic Query Object TerrSearch (Territory Management)?

Hello Friends,
In the TerrSearch dynamic query object, There are 2 fields Territory_ID and Level_ID. Now i have a requirement to Enhance the Search object using the new field called TERRITORY PATH ID. using which we can search all the entities not only for the terrritory level which we have selected (for example we have assigned the value '01' to LEVEL_ID) but also all the below territory levels of selected territory level.
If we enhance the search object structure CRMST_TMIL_SEARCH (structure of TerrSearch object) using AET to add the Z field called TERRITORY_PATH_ID then which is the suitable BADI where we can add the necessary code to select all the entities based on all the territory levels below the selected territory level.
Please guide me friends how to enhance the TerrSearch object.

Hi friend,
Try using MACRO and dynamic WHERE condition.
Group simialr Select statements under a Macro.
Build a dynamic where by checking conditions
Call macro passing dynamic where condition.
TABLES afpo.
DATA: str TYPE string.
*Macro definition
DEFINE operation.
select single *
from afpo into afpo
where (&1). " Dynamic condition
END-OF-DEFINITION.
*Build dynamic WHERE by checking some conditions
*If conditon
CONCATENATE 'AUFNR = ''000000700008''' 'AND POSNR = ''0001''' INTO str SEPARATED BY space.
*Else
CONCATENATE 'AUFNR = ''000000700008''' 'AND POSNR = ''0002''' INTO str SEPARATED BY space.
*Endif.
*Call Macro passing dynamic WHERE condition
operation str.

Query Builder functionality

Has anyone built a Query Builder Page in the apps that is similar to the standard APEX Query Builder?

I haven't done exactly this, but remember doing a tabular form genarator (similar to the tabular form wizard in the builder) choosing tables, columns and field types. But that was using Apex 3.2, now that we have jQuery and dynamic actions in Apex 4.0, it should be much easier.
If you looking for an approach, here's one
<li>create a left side bar region with tables from schema: report or list based
select table_name from user_tables<li>On click of the list entry, show a modal dialog of a report based on the columns of the selected table
SELECT * FROM USER_TAB_COLS WHERE table_name = :<TABLE_NAME ITEM> Show images based on column type ("data_type" in user_tab_cols)
Checkboxes return the column name for each row
<li> Have a dynamic action that runs for each checkbox calling a PLSQL to update a collection adding the clicked column name to the the list.
Refresh a updateable report region which is based on the collection , showing the column, sort order,group by options
and JS code to move rows up or down (
move_up code (pseudo code)
this_row = $(this.triggeringElement).parents('tr:first);
prev_row = this_row.prev();
next_row = this_row.next();
//move up
prev_row.before(this_row);Then the SQL code generation would concatenate the application arrays containing the column names adding columns one row at a time and adding sort and order options. You would need to some custom PLSQL coding, looping throw each row adding predicates.

Unable to retrieve results using dynamic query

Hi Experts,
I have created a custom table and have created a custom bol to integrate it with web ui. I have redefined the dynamic query result method of genil layer. I find the data into LT_RESULT but when I invoke the root list method the LR_OBJECT does not contain the values.
Please see below the code that I have written.
====================================
METHOD IF_GENIL_APPL_INTLAY~GET_DYNAMIC_QUERY_RESULT.
DATA: LR_OBJECT TYPE REF TO IF_GENIL_CONT_ROOT_OBJECT,
LT_RESULT TYPE TABLE OF ZCRMST_XXXX,
LV_DYN_WHERE TYPE STRING,
LV_LEN TYPE I,
LS_RANGE TYPE SELOPTOBJ.
DATA: LT_XXXX TYPE TABLE OF SELOPTOBJ,
LT_YYYY TYPE TABLE OF SELOPTOBJ.
FIELD-SYMBOLS: <LFS_RESULT> TYPE ZCRMST_XXXX,
<LFS_SELECTION_RANGE> TYPE GENILT_SELECTION_PARAMETER.
decomposition of selection parameters and build a dynamic where condition
SELECT * FROM ZXXXX INTO TABLE LT_RESULT[].
CHECK LINES( LT_RESULT[] ) > 0.
LOOP AT LT_RESULT[] ASSIGNING <LFS_RESULT>.
LR_OBJECT = IV_ROOT_LIST->ADD_OBJECT( IV_OBJECT_NAME = 'Root'
IS_OBJECT_KEY = <LFS_RESULT>-XXXX ).
CHECK LR_OBJECT IS BOUND.
LR_OBJECT->SET_QUERY_ROOT( ABAP_TRUE ).
ENDLOOP.
ENDMETHOD.
==================================================
Thanks in advance,

Hi,
Please check your get_objects method of the genil class. I made some changes to my implementation of get_objects method and it fixed the problem.
Regards,
Sandeep

Using presentation variables selected in dashboard prompt in query builder

In dashboard prompt I have made four dropdowns(have four presentation variables) and based on these values selected,can the Query Builder generate dynamic reports based on the presentation variables selected?
I will provide the link(i.e Link of BI publisher where I stored the report) displayed to the user based on Four presentation variables.
If we click on that link can we use the presentation variables in where clause of Query Builder in BI Publisher?
Please help me out
Thanks in Advance

- OK. In the second prompt, instead of setting Default to SQL Results, set it to Specific Value.
- Then insert '{pres_var}' in the window. I got it to work this way.
- It supplied the PV as the default in the second prompt after hitting "Go" on the first prompt.
Hi, thanks for your suggestion but I don't need to have the value of the presentation variable itself as the prompt default. The variable is a filter for a specific SQL clause and the default is the result of this SQL.
Cheers
DrPlexi

How to use dynamic query for this ??

hi , i am new to ABAP. i got a requirement to write dynamic query for the following code.
kindly address. two set of queries are same.but condition is different.
.IF p_psd EQ ' '.
*C--End of change DF 1232137- (Transport # :CIDK980530 )
*C--FETCH THE Deliverd Quantiity and Material Number
    SELECT aufnr "ORDER number
           wemng "Quantity of goods received for the order item
           matnr "MATERIAL NUMBER
           pwerk "PLANT
           dauat "Order Type
           FROM afpo
           INTO TABLE t_afpo
           WHERE aufnr IN s_order
           AND   wemng IN s_dqt
           AND   matnr IN s_matnr
           AND   pwerk IN s_plant
           AND   dauat = c_ro.
    IF sy-subrc = 0.
      SORT t_afpo BY aufnr matnr pwerk.
*C--FETCH THE OBJECT NUMBER
      SELECT aufnr "ORDER number
             objnr "Object number
             FROM aufk
             INTO TABLE t_aufk
             FOR ALL ENTRIES IN t_afpo
             WHERE aufnr = t_afpo-aufnr.
      IF sy-subrc = 0.
        SORT t_aufk BY aufnr objnr.
*C--FETCH THE Target Quantiity
        SELECT aufnr "ORDER number
               gamng "Total order quantity target quantity
               FROM afko
               INTO TABLE t_afko
               FOR ALL ENTRIES IN t_afpo
               WHERE aufnr = t_afpo-aufnr
               AND   gamng IN s_tqt.
        IF sy-subrc = 0.
          SORT t_afko BY aufnr .
        ENDIF.
      ENDIF.
    ELSE.
      MESSAGE text-e03 TYPE c_s. " No data for the selection criteria
      LEAVE LIST-PROCESSING.
    ENDIF.
*C--Begin of change DF 1232137- (Transport # :CIDK980530 )
ENDIF.
IF p_psd EQ c_x.
    SELECT aufnr "ORDER number
           wemng "Quantity of goods received for the order item
           matnr "MATERIAL NUMBER
           pwerk "PLANT
           dauat "Order Type
           FROM afpo
           INTO TABLE t_afpo
           WHERE aufnr IN s_order
           AND   wemng > 0
           AND   matnr IN s_matnr
           AND   pwerk IN s_plant
           AND   dauat = c_ro.
if sy-subrc = 0.
*C--FETCH THE OBJECT NUMBER
    IF NOT t_afpo[] IS INITIAL.
      SORT t_afpo BY aufnr matnr pwerk.
      SELECT aufnr "ORDER number
             objnr "Object number
             FROM aufk
             INTO TABLE t_aufk
             FOR ALL ENTRIES IN t_afpo
             WHERE aufnr = t_afpo-aufnr.
      IF sy-subrc = 0.
        SORT t_afko BY aufnr gamng.
      ELSE.
        MESSAGE text-e03 TYPE c_s. " No data for the selection criteria
        LEAVE LIST-PROCESSING.
      ENDIF.
    ENDIF.
    IF NOT t_afpo[] IS INITIAL.
*C--FETCH THE Target Quantiity
      SELECT aufnr "ORDER number
             gamng "Total order quantity target quantity
             FROM afko
             INTO TABLE t_afko
             FOR ALL ENTRIES IN t_afpo
             WHERE aufnr = t_afpo-aufnr
             AND   gamng <> t_afpo-wemng .
      IF sy-subrc = 0.
        SORT t_afko BY aufnr gamng.
      ELSE.
        MESSAGE text-e03 TYPE c_s. " No data for the selection criteria
        LEAVE LIST-PROCESSING.
      ENDIF.
    ENDIF.
ELSE.
    MESSAGE text-e03 TYPE c_s. " No data for the selection criteria
    LEAVE LIST-PROCESSING.
ENDIF.
Edited by: Thomas Zloch on Jan 5, 2011 1:30 PM please use code tags

Hi friend,
Try using MACRO and dynamic WHERE condition.
Group simialr Select statements under a Macro.
Build a dynamic where by checking conditions
Call macro passing dynamic where condition.
TABLES afpo.
DATA: str TYPE string.
*Macro definition
DEFINE operation.
select single *
       from afpo into afpo
       where (&1).    " Dynamic condition
END-OF-DEFINITION.
*Build dynamic WHERE by checking some conditions
*If conditon
CONCATENATE 'AUFNR = ''000000700008''' 'AND POSNR = ''0001''' INTO str SEPARATED BY space.
*Else
CONCATENATE 'AUFNR = ''000000700008''' 'AND POSNR = ''0002''' INTO str SEPARATED BY space.
*Endif.
*Call Macro passing dynamic WHERE condition
operation str.

Help! Inaccessible iterator when using dynamic query

Hi!
I have a problem retreiving results from a dynamic query into sqlj iterator.
I consulted the Oracle App Dev Guide and Oracle SQLJ Dev Guide and wrote the following code:
<PRE>
package pmServer;
#sql iterator LocIterator (int id, String name);
public class pmRISDImpl
public int GetLocations(...)
LocIterator locIt;
String q = "select ID, NAME from PMADM.LOCATIONS";
#sql
BEGIN
open :OUT locIt for :q;
END;
</PRE>
When I try to compile it using tools provided by JDeveloper ver 3.2.2.(Build 915) for JDK 1.2.2 I get error for #sql statement:
Inaccessible Java type for host item locIt (at position #1): pmServer.LocIterator
and warning:
Type pmServer.LocIterator of host item locIt (at position #1) is not permitted in JDBC. This will not be portable.
Althow the code is identcal to those demonstrated in Oracle document "Oracle8 i
SQLJ Developers Guide and Reference
Release 3 (8.1.7)
July 2000
Part No. A83723-01" pp 12-67 (PL/SQL in SQLJ for Dynamic SQLDynamicDemo.sqlj). There it looks like
<PRE>
private static void dynamicSelectMany(String what_cond)
throws SQLException {
System.out.println("dynamic multi-row query on table emp");
Employees empIter;
// table/column names cannot be bind args in dynamic PL/SQL, so
// build up query as Java string
String query = "select ename, sal from emp " +
(((what_cond == null) | | (what_cond.equals(""))) ? "" :
(" where " + what_cond)) +
"order by ename";
#sql {
begin
open :OUT empIter for -- opening ref cursor with dynamic query
:query;
-- can have USING clause here if needed
end;
while (empIter.next()) {
System.out.println("Employee " + empIter.ename() +
" has salary " + empIter.sal() );
empIter.close();
</PRE>
Please guide me what should I do to get it working.
null

In the CAST statement the SQLJ runtime must be able to produce an instance of you SQLJ iterator using Java reflection.
This necessitates that the iterator class must be accessible by public.
You have two options:
(1) Declare the iterator public. This requires that you put it in its own file LocIterator.sqlj:
#sql public iterator LocIterator (int id, String name);
(2) Declare the iterator as an inner class. In this case you want to make it public static (that is it does not require an instance of the outer class in scope). You might write the following.
package pmServer;
public class pmRISDImpl
#sql public static iterator LocIterator (int id, String name);
(3) If you are using Oracle 9i you have another option. You can embed dynamic SQL fragments directly in your SQLJ code and do not need to use the CAST:
public int GetLocations(...)
LocIterator locIt;
String q = "PMADM.LOCATIONS";
#sql locIt = { select ID, NAME from :{q} }; // Note new syntax :{q} for embedding SQL source code
}

Query a stored procedure that exec's a dynamic query. Error Linked server indicates object has no columns

I have a stored procedure that dynamically creates a pivot query. The procedure works and returns the correct data. Now I have a requirement to show this data in reporting system that can only pull from a table or view. Since you can not
create a dynamic query in a view I tried to do a select from using openquery.
Example 'Select * from OpenQuery([MyServername], 'Exec Instance.Schema.StoredProcedure')
I get the error back "the linked server indicates the object has no columns". I assume this is because of the first select statement that is stuffing the variable with column names.
CODE FROM PROCEDURE
Alter PROCEDURE [dbo].[Procedure1]
AS
BEGIN
SET NOCOUNT ON
Declare @cols nvarchar(2000),
  @Tcols nvarchar(2000),
  @Sql nvarchar (max)
select @cols = stuff ((
      Select distinct '], ['+ModelName + ' ' + CombustorName
       from CombustorFuel cf
       join Model m on cf.modelid = m.modelid
       join Combustors cb on cf.CombustorID = cb.CombustorID
       where cf.CombustorID > 0
       for XML Path('')
      ),1,2,'')+']'
Set @Tcols = replace(@Cols, ']', '] int')
--Print @Tcols
--Print @Cols
Set @Sql = 'Select GasLiquid, FuelType, '+ @Cols +'
from
Select GasLiquid, FuelType, ModelName+ '' '' +CombustorName ModelCombustor, CombFuelStatus+''- ''+CombFuelNote CombFuelStatusNote
  from Frames f
  join Family fa on f.Frameid = fa.frameid
  join Model m on fa.FamilyID = m.FamilyID
  join CombustorFuel cf on m.Modelid = cf.modelid
  Join Combustors c on cf.CombustorId = c.CombustorID
  join FuelTypes ft on cf.FuelTypeID = ft.FuelTypeID
  where cf.CombustorFuelID > 0
    and CombustorName <> ''''
) up
Pivot
(max(CombFuelStatusNote) for ModelCombustor in ('+ @Cols +')) as pvt
order by FuelType'
exec (@Sql)

Then again, a good reporting tool should be able to do dynamic pivot on its own, because dynamic pivoting is a presentation feature.
SSRS Supports dynamic columns: Displaying Dynamic Columns in SSRS Report
SQL Reporting Services with Dynamic Column Reports
Kalman Toth Database & OLAP Architect
SQL Server 2014 Database Design
New Book / Kindle: Beginner Database Design & SQL Programming Using Microsoft SQL Server 2014
Displaying and reading are two very different things.
#1) SSRS Needs a fixed field list on the input side to know what what to make available in the designer.
#2) SSRS cant read "exec (@Sql)" out of a proc, even if there is a fixed number of columns (at
least it can't use it to auto build the field list from the proc)
I use dynamic SQL in my report procs on a fairly regular basis and I've found it easiest to simply dump
the results of my dynamic sql into a temp table at the end of the procs and then select from the temp table.
Basically, Erland is correct. Stop trying to pivot in the query and let SSRS (or whatever reporting software you're using) handle it with a Martix.
Jason Long

Dynamic query in ABAP

Can we use dynamic query in ABAP?

1. Dynamic where clause
You can use an internal table to build a dynamic where clause:
data: where_tab(30) occurs 1 with header line,
         where_clause(30) type c.
Build the where clause. Will look like this when finished
WHERE ZAFSTMD02 = 'X' AND rbusa = '5145'
With a constant, result: ZAFSTMD01 = 'X'
concatenate 'ZAFSTMD' zcostcheck-zmaaned ' = ''X''' into where_clause.
Append to internal table where_tab
append where_clause to where_tab.
With a variable, result: AND rbusa = '5145'
concatenate 'AND rbusa = ' '''' i_tab-zgsber ''''
append where_clause to where_tab.
Select
select * from zcostfreq
     where (where_tab).
endselect.
Note that you can combine static and dynamic where clauses:
select * from zcostfreq
     where bukrs = '2021' AND
                              (where_tab).
endselect.
2. Using a dynamic table name
This report prints the number og entries in a table. The table name is
specified by a parameter.
data:
l_count type i.
parameters:
p_tab type tabname.
start-of-selection.
select count(*) from (p_tab) into l_count.
write: / 'Number of entries in table ', p_tab, l_count.
3. Dynamic retrieval and writing of data
In this example, data is retrieved from the table selected on the selection
screen, and the contents of the
table is written to the screen.
DATA:
Create variable that can contain referecene to any data
dataref TYPE REF TO data.
FIELD-SYMBOLS:
<row>         TYPE ANY,
<component>   TYPE ANY.
PARAMETERS:
p_tab TYPE tabname.
START-OF-SELECTION.
Create a workarea for the tabel selected on the selection screen
CREATE DATA dataref TYPE (p_tab).
The variable dataref cannot be accessed directly, so a field symbol is
used
ASSIGN dataref->* TO <row>.
SELECT *
    FROM (p_tab) UP TO 10 ROWS
    INTO <row>.
    NEW-LINE.
    DO.
    Write all the fields in the record
      ASSIGN COMPONENT sy-index
        OF STRUCTURE <row>
        TO <component>.
      IF sy-subrc <> 0.
        EXIT.
      ENDIF.
      WRITE <component>.
    ENDDO.
ENDSELECT.
4. Dynamic SELECT
TYPES:
BEGIN OF st_bseg,
    bukrs LIKE bseg-bukrs,
    belnr LIKE bseg-belnr,
    dmbtr LIKE bseg-dmbtr,
END OF st_bseg.
DATA:
sel_list   TYPE STANDARD TABLE OF edpline,
li_bseg    TYPE STANDARD TABLE OF st_bseg,
l_bseg     TYPE st_bseg.
START-OF-SELECTION.
APPEND 'bukrs belnr dmbtr' TO sel_list.
SELECT (sel_list)
    FROM bseg UP TO 100 ROWS
    INTO TABLE li_bseg.
LOOP AT li_bseg INTO l_bseg.
    WRITE : / l_bseg-bukrs, l_bseg-belnr, l_bseg-dmbtr.
ENDLOOP.

Dynamic query building

Similar Messages

Maybe you are looking for