Thursday 21 August 2014

Source Qualifier Transformation



Exercise 2:Source Qualifier Transformation


Step1: Import source tables


  1. Import EMP,DEPT and SALGRADE  tables from SCOTT schema to informatica source Analyzer


Step 2 : Create a target Table and import as a target


  1. Open SQL Developer and type below sql query in Target schema
  2. CREATE TABLE  EMP_DEPT_SAL_GRADE   (DNAME  VARCHAR2(20),DEPT_WISE_SALARY NUMBER(10,2),GRADE NUMBER);
Step3: Create mapping with the name of m_SQ1


  1. Go to mappings menu bar → click on create → Click on OK


  1. Drag and Drop sources EMP,DEPT,SALGRADE  and target EMP_DEPT_SAL_GRADE  tables to mapping workplace
  2. Delete the above SQ_DEPT,SQ_SALGRADE source qualifiers tables
  1. Drag and drop DEPTNO,DNAME,LOC  from DEPT table to SQ_EMP table
  2. Drag and drop GRADE,HISAL ,LOSAL from SALGRADE table to SQ_EMP table.
  3. Connect DNAME ,SAL and GRADE   from source qualifier to Target table


  1. Double click on Source Qualifier SQ_EMP → Click on Properties Tab
  2. Click on SQL Query down arrow mark
  3. In SQL Editor window provide below information
    1. ODBC data source as “RRITEC_SOURCE”
    2. USER NAME as: SOURCE_USER
    3. Password as: SOURCE_USER
   


  1. Click on Generate SQL → then automatically Query will be generated
SELECT DEPT.DNAME, EMP.SAL, SALGRADE.GRADE
FROM
EMP, DEPT, SALGRADE
WHERE
DEPT.DEPTNO=EMP.DEPTNO
  1. Modify Query as shown below


SELECT DEPT.DNAME, SUM(EMP.SAL)SAL,SALGRADE.GRADE                                                                   FROM                                                               
DEPT,EMP,SALGRADE                                                               
WHERE                                                             
DEPT.DEPTNO=EMP.DEPTNO                                                
AND SAL>=LOSAL AND SAL<=HISAL                                                                     
GROUP BY                                                                       
DNAME,GRADE                                                                            
  1. Click on OK → Click on OK Save Mapping
  2. Create a session and workflow
  3. Run the workflow

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