Aggregator Transformation in Informatica

Aggregator is an active transformation used to calculate group values.

Ports:

· Input

· Output

· Expression

· Variable

· Group By

Properties:

· Data Cache

· Index cache

· Sorted Input

Steps:

1. Define Source

2. Define Target

Write the Target requirements and Generate/Execute SQL.

AGG_FACT

· DEPTNO

· TOT_SAL

· MAX_SAL

· MIN_SAL

· AVG_SAL

· COUNT_EMP

Aggregator Transformation in Informatica

Add the required ports like TOT_SAL, MAX_SAL etc.

Aggregator Transformation in Informatica

3. Define Mapping M_AGG

4. Drag Source and Target to the Mapping Designer.

5. Go to the Transformation Menu and click on Create. Select the Transformation type as AGGREGATOR T_AGG.

Aggregator Transformation in Informatica

6. Project the required ports from Source Qualifier to the Aggregator.

Aggregator Transformation in Informatica

7. Edit Aggregator. Go to Ports Tab

Uncheck inputs for all added ports. (Expressions are highlighted)

In the functions tab Aggregate folder is displayed only when it is used in the mapping.

Aggregator Transformation in Informatica

In the Functions tab expand Aggregate folder. Select the function. From the Ports tab select the port.

Validate -> OK.

Apply the functions to respective ports.

Check the Group By check box for the department.

In the Properties tab check the box Sorted Input if the data is already sorted (suppose sorter tranfn is applied before the aggregator, otherwise the agg will sort the input)

Aggregator Transformation in Informatica

Project the required ports from the aggregator to the taget.

Save the Repository.

Create a Session S_AGG

Define a Workflow WF_AGG.

Start the workflow.

Preview the data.

Aggregator Transformation in Informatica

Contact Me

Do You have any queries ? If you are having any query or wishing to get any type of help related Datawarehouse, OBIEE, OBIA, OAC then please e-email on below. I will reply to your email within 24 hrs. If I didn’t reply to you within 24 Hrs., Please be patience, I must be busy in some work. kashif7222@gmail.com

Top 130 SQL Interview Questions And Answers

1. Display the dept information from department table. Select * from dept; 2. Display the details of all employees Select * from emp; 3. Display the name and job for all employees Select ename ,job from emp; 4. Display name and salary for all employees. Select ename , sal from emp; 5. Display employee number and total salary for each employee. Select empno, sal+comm from emp; 6. Display employee name and annual salary for all employees. Select empno,empname,12*sal+nvl(comm,0) annualsal from emp; 7. Display the names of all employees who are working in department number 10 Select ename from emp where deptno=10; 8. Display the names of all employees working as clerks and drawing a salary more than 3000 Select ename from emp where job=’clerk’and sal>3000; 9. Display employee number and names for employees who earn commission Select empno,ename from emp where comm is not null and comm>0. 10

Informatica sample project

Informatica sample project - 1 CareFirst – Blue Cross Blue Shield, Maryland (April 2009 – Current) Senior ETL Developer/Lead Model Office DWH Implementation (April 2009 – Current) CareFirst Blue Cross Blue Shield is one of the leading health care insurance provided in Atlantic region of United States covering Maryland, Delaware and Washington DC. Model Office project was built to create data warehouse for multiple subject areas including Members, Claims, and Revenue etc. The project was to provide data into EDM and to third party vendor (Verisk) to develop cubes based on data provided into EDM. I was responsible for analyzing source systems data, designing and developing ETL mappings. I was also responsible for coordinating testing with analysts and users. Responsibilities: · Interacted with Data Modelers and Business Analysts to understand the requirements and the impact of the ETL on the business. · Understood the requirement and develope

Datawarehouse Architect

Search This Blog