Sql Query in Custom Java Class in OIM 9x

Hi All,
I m having requirement where I need to execute SQL Select Query in custom java class.
The class is a action class ,in a method I m trying to execute SQL Query as below
     sdkDataSet = new tcDataSet();
          dataprovider =sdkDataSet.getDataBase();
               //sdkDataSet = new tcDataSet();
               sdkDataSet.setQuery(dataprovider, sdkQuery);
               sdkDataSet.executeQuery();
               logger.debug(CLASSNAME + methodName + "Query Executed");
               if (sdkDataSet.getRowCount() > 0)
                    sdkName = sdkDataSet.getString(0);
                    logger.debug(CLASSNAME + methodName+ "The sdkName is " + sdkName);
Error is returned in logs
tcDataSetException    Must set a query before executing
I hope issue is coming due to dataprovider dbrefence.
Kindly let me know how to execute sql query in a action class.
Regards,
Krish

Hi Pallavi,
Thanks for your reply...
OOTB class Name is com.thortech.xl.webclient.actions.ApprovalsAction
This class will display the pending Approvals for a user.On pending approval page, I need to add one more attribute let say email of the beneficiary user.I have a query which will fetch email value based on RequestID.
select usr.usr_email from rqu rqu, usr usr, act act where rqu.usr_key=usr.usr_key and usr.act_key=act.act_key and rqu.req_key=1234*
Pls let me know if there is any way to get email with or with out executing Query.
Regards,
Krish

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