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

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Hi,
I have a requirement where in i have to build a dynamic query based on one count.
Some details on requirement:
1) It's a Proc where i need to return some columns
2) There are some fix set of columns
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NOT TESTED !
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After hours around this, I have came with this solution.
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private System.Data.DataTable dataTable;
private System.Data.DataRow dataRow;
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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!
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Neeraj Sehgal - Experimenting with SOA: Pass multiple parameters, dynamic query in Pure SQL in Database Adapter
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A challenging dynamic SQL query problem

hi All,
I have a very interesting problem at work:
We have this particular table defined as follows :
CREATE TABLE sales_data (
sales_id NUMBER,
sales_m01 NUMBER,
sales_m02 NUMBER,
sales_m03 NUMBER,
sales_m04 NUMBER,
sales_m05 NUMBER,
sales_m06 NUMBER,
sales_m07 NUMBER,
sales_m08 NUMBER,
sales_m09 NUMBER,
sales_m10 NUMBER,
sales_m11 NUMBER,
sales_m12 NUMBER,
sales_prior_yr NUMBER );
The columns 'sales_m01 ..... sales_m12' represents aggregated monthly sales, in which 'sales_m01' translates to 'sales for the month of january, january being the first month, 'sales_m02' sales for the month of february, and so on.
The problem I face is that we have a project which requires that a parameter be passed to a stored procedure which stands for the month number which is then used to build a SQL query with the following required field aggregations, which depends on the parameter passed :
Sample 1 : parameter input: 4
Dynamically-built SQL query should be :
SELECT
SUM(sales_m04) as CURRENT_SALES,
SUM(sales_m01+sales_m02+sales_m03+sales_m04) SALES_YTD
FROM
sales_data
WHERE
sales_id = '0599768';
Sample 2 : parameter input: 8
Dynamically-built SQL query should be :
SELECT
SUM(sales_m08) as CURRENT_SALES,
SUM(sales_m01+sales_m02+sales_m03+sales_m04+
sales_m05+sales_m06+sales_m07+sales_m08) SALES_YTD
FROM
sales_data
WHERE
sales_id = '0599768';
So in a sense, the contents of SUM(sales_m01 ....n) would vary depending on the parameter passed, which should be a number between 1 .. 12 which corresponds to a month, which in turn corresponds to an actual field range on the table itself. The resulting dynamic query should only aggregate those columns/fields in the table which falls within the range given by the input parameter and disregards all the remaining columns/fields.
Any solution is greatly appreciated.
Thanks.

Hi another simpler approach is using decode
try like this
SQL> CREATE TABLE sales_data (
2 sales_id NUMBER,
3 sales_m01 NUMBER,
4 sales_m02 NUMBER,
5 sales_m03 NUMBER,
6 sales_m04 NUMBER,
7 sales_m05 NUMBER,
8 sales_m06 NUMBER,
9 sales_m07 NUMBER,
10 sales_m08 NUMBER,
11 sales_m09 NUMBER,
12 sales_m10 NUMBER,
13 sales_m11 NUMBER,
14 sales_m12 NUMBER,
15 sales_prior_yr NUMBER );
Table created.
SQL> select * from sales_data;
SALES_ID SALES_M01 SALES_M02 SALES_M03 SALES_M04 SALES_M05 SALES_M06 SALES_M07 SALES_M08 SALES_M09 SALES_M10 SALES_M11 SALES_M12 SALES_PRIOR_YR
         1        124        123        145        146        124        126        178        189        456        235        234        789          19878
         2        124        123        145        146        124        126        178        189        456        235        234        789          19878
         1        100        200        300        400        500        150        250        350        450        550        600        700          10000
         1        101        201        301        401        501        151        251        351        451        551        601        701          10000----now for your requirement. see below query if there is some problem then tell.
SQL> SELECT sum(sales_m&input_data), DECODE (&input_data,
2                 1, SUM (sales_m01),
3                 2, SUM (sales_m01 + sales_m02),
4                 3, SUM (sales_m01 + sales_m02 + sales_m03),
5                 4, SUM (sales_m01 + sales_m02 + sales_m03 + sales_m04),
6                 5, SUM (sales_m01 + sales_m02 + sales_m03 + sales_m04 + sales_m05),
7                 6, SUM (sales_m01 + sales_m02 + sales_m03 + sales_m04+sales_m05+sales_m06),
8                 7, SUM (sales_m01 + sales_m02 + sales_m03 + sales_m04+sales_m05+sales_m06+sales_m07),
9                 8, SUM (sales_m01 + sales_m02 + sales_m03 + sales_m04+sales_m05+sales_m06+sales_m07+sales_m08),
10                 9, SUM (sales_m01 + sales_m02 + sales_m03 + sales_m04+sales_m05+sales_m06+sales_m07+sales_m08+sales_m09),
11                 10,SUM (sales_m01 + sales_m02 + sales_m03 + sales_m04+sales_m05+sales_m06+sales_m07+sales_m08+sales_m09+sales_m10),
12                 11,SUM (sales_m01 + sales_m02 + sales_m03 + sales_m04+sales_m05+sales_m06+sales_m07+sales_m08+sales_m09+sales_m10+sales_m11),
13                 12,SUM (sales_m01 + sales_m02 + sales_m03 + sales_m04+sales_m05+sales_m06+sales_m07+sales_m08+sales_m09+sales_m10+sales_m11+sales_m12)
14                ) total
15    FROM sales_data
16   WHERE sales_id = 1;
Enter value for input_data: 08
Enter value for input_data: 08
old   1: SELECT sum(sales_m&input_data), DECODE (&input_data,
new   1: SELECT sum(sales_m08), DECODE (08,
SUM(SALES_M08)      TOTAL
           890       5663

Flash chart with dynamic sql query does not display

Hi,
In my schema SIVOA I have a lot of tables declared like this :
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|| UPPER(:p184_ename)
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My question is how to get the chart displaying properly ??
Thank you for your kind answers.
Christian

Alex,
Using your request, with the classic report I get results (data), but I get the same message with the Flash chart : "No data found" ! I don't know how to investigate this. i tried many things but nothing works.
Christian
PS I tried this :
DECLARE
   X   VARCHAR2 (4000);
BEGIN
x := 'SELECT NULL, DATE1, ROUND(VALEUR,2) FROM SIVOA.EVV_'
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||:P8_DATE_FIN||''', ''DD/MM/YYYY HH24:MI'')'
RETURN (X);
END; But it does not work either. I could find that the SLQ syntax generated is good becaus I put it into an item which display the return done by the pls/sql.
What is sttange also with the classic report is that if I do click on next or previous to see another rows, I get the message "No data found". If I try to export the report I get an excel file with "No data fouid".
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Tahnk you.
Edited by: Christian from France on Feb 13, 2009 3:05 AM

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Input table:
create table #test(dealerid integer ,dealerlvl integer)
insert into #test values(1,1)
insert into #test values(1,2)
insert into #test values(1,3)
insert into #test values(1,4)
insert into #test values(2,1)
insert into #test values(2,2)
insert into #test values(2,3)
insert into #test values(2,4)
insert into #test values(2,5)
insert into #test values(2,6)
go
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insert into #test2 values (1,234,124,2)
insert into #test2 values (1,123,234,1)
insert into #test2 values (1,238,123,2)
insert into #test2 values (1,235,238,3)
insert into #test2 values (1,253,235,4)
insert into #test2 values (2,21674,124,3)
insert into #test2 values (2,1233,21674,1)
insert into #test2 values (2,2144,1233,2)
insert into #test2 values (2,2354,2144,3)
insert into #test2 values (2,24353,2354,4)
insert into #test2 values (2,245213,24353,5)
insert into #test2 values (2,2213,245213,6)
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I have two test case here with dealerID1 and dealerID 2
Result for DealerID1
Result needed for DealerID2:
the levels for dealers might change (Dealer1 has 4 levels, and Dealer 2 has 6 levels) so i need to create an dynamic sql query which lists each node as separate columns depending on the levels.
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join #test2 b on a.node=b.prntnode
join #test2 c on b.node=c.prntnode
join #test2 d on c.node=d.prntnode
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select a.dealerid,a.node asLvl1,
b.node as lvl2,c.node as lvl3,d.node as lvl4,e.node as lvl5,f.node as lvl6--,a.dealerlvl,a.dealerid
from #test2 a
join #test2 b on a.node=b.prntnode
join #test2 c on b.node=c.prntnode
join #test2 d on c.node=d.prntnode
join #test2 e on d.node=e.prntnode
join #test2 f on e.node=f.prntnode
where a.dealerid=2 and a.dealerlvl=3
I am sure there is a better way to do this with dynamic sql. please help.
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Creating a dynamic SQL query builder class

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TYPE
TITLE
NODE
STATUS (an array of 4 different possible statuses)
TIMESTAMP
GUID (will be used when a view of a specific job (row in the table) is requested, no other search criteria needed when this view is required.)
All the criteria will be passed from the view layer into a search criteria object which is then passed to the DAO class which passes it to a BuildSQL class to use it to build the SQL.
There are many different "views" of the data which will result in many different combinations of criteria being passed down to the data access layer. (for example a status of failed and a timestamp resulting in all the jobs run in the last 2 hours)
As there are a number of different search criteria used in each query I'm having trouble designing the class to dynamically build the query. Are there any standard ways of doing this out there that could guide me?
At the moment I'm seeing this class as being a large combination of if statements and not really being very dynamic.
I was thinking maybe checking all the criteria to see if its null, if so ignore it straight away and then running through all the other criteria and appending one by one to the may SELECT which has already been created. Quite how i'd decided whether it would need an AND or OR before it I dont know.
Are there any standard proven ways to approach this because i've done a search here and on google and not really come back with much, so any advice would be great. I've got to say I'm pretty new to java and don't really have many bright ideas here!

Well my dear friend... I did something special for a business logic support to an web autocomplete component.
The criteria building was based on a custom variable into the SQL statement:
SELECT * FROM TABLE WHERE __MC__ AND (FIXED CRITERIA)
Where:
*FIXED CRITERIA: Is a fixed criteria that doesn't variate
*__MC__: Is a "custom variable" defined for me to make the replacement.
There are two main clases:
*SQLBuilder: It has many logic to build SQL Statements
*Multicriteria: It has the specific logic to insert into a SQL statement multiple criterias
// The SQLBuilder class
public class SQLBuilder {
    public static final String MC = "__MC__";
    static String buildMultiCriteria(String sql, Object[] params) throws Exception {
        for(int i=0; i<params.length; i++) {
            if(params[i] instanceof MultiCriteria) {
                sql = sql.replaceFirst("__MC__",
                        ((MultiCriteria)params).getCriteria());
params[i] = null;
return sql;
// The MultiCriteria class
public class MultiCriteria {
public static final int BEGINS = 0;
public static final int ENDS = 1;
public static final int CONTAINS = 2;
private String criteria = null;
public MultiCriteria(String[] fields, String value, int type) throws Exception {
String[] tokens = value.split(" ");
StringBuffer sb = new StringBuffer("(");
for(int i=0; i<fields.length; i++) {
for(int j=0; j<tokens.length; j++) {
if(tokens[j].length()>0) {
     sb.append(fields[i].toUpperCase());
     sb.append(" LIKE '");
     sb.append(toType(tokens[j], type));
     sb.append("'");
     if(j<tokens.length-1) sb.append(" OR ");
if(i<fields.length-1) sb.append(" OR ");
sb.append(")");
criteria = sb.toString();
public String getCriteria() {
return criteria;
private final String toType(String value, int type) throws Exception {
switch(type) {
     case BEGINS:
     value = value + "%";
     break;
     case ENDS:
     value = "%" + value;
     break;
     case CONTAINS:
     value = "%" + value + "%";
     break;
     default:
     throw new Exception("Undefined MutiCriteria type");
return value;
// I use the MultiCriteria this way
// criteria is a string introduced in a html input text
// The class splits the string by " " and ensemble multiple criterias
// for the given fields permuting them with the tokens resulting of the
// split
MultiCriteria mc = new MultiCriteria(
new String[] {"FIELD_01", "FIELD_02"},
     criteria,
     MultiCriteria.CONTAINS
I think this idea could help you.
Anything else, write me at [email protected]
Best Regards,

Build dynamic SQL query in Database Adapter.

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