Informatica Questions - 5 Is sorter an active or passive transformation? What happens if we uncheck the di stinct option in sorter? Will it be under active or passive transformation? Sorter is an active transformation. if you don't check the distinct option it is considered as a passive transformation. Because this distinct option eliminates the duplicate records from the table. How can we partition a session in Informatica? Partitioning option optimizes parallel processing on multiprocessor hardware by providing a thread-based architecture and built-in data partitioning. GUI-based tools reduce the development effort necessary to create data partitions and stre amline ongoing troubleshooting and performance tuning tasks, while ensuringdata integrity throughout the execution process. As the amount of data within an orga nization expands and real-time demand for information grows, the Power Center Pa rtitioning option enables hardware and applications to provide outstanding perfo rmance and jointly scale to handle large volumes of data and users. In update strategy target table or flat file which gives more performance? Why? Pros: Loading, Sorting, Merging operations will be faster as there is no index c oncept and Data will be in ASCII mode. Cons: There is no concept of updating existing records in flat file. As there is no indexes, while lookups speed will be lesser. What is the difference between constraint base load ordering and target load pla n ? Constraint based load ordering Example: Table 1---Master Take 2---Detail If the data in Table-1 is dependent on the data in Table-2 then Table-2 should b e loaded first. In such cases to control the load order of the tables we need so me conditional loading which is nothing but constraint based load. In Informatic a this feature is implemented by just one check box at the session level. What is parameter file? When you start a workflow, you can optionally enter the directory and name of a parameter file. The Informatica Server runs the workflow using the parameters in the file you specify. For UNIX shell users, enclose the parameter file name in single quotes: -paramfile '$PMRootDir/myfile.txt' For Windows command prompt users, the parameter file name cannot have beginning or trailing spaces. If the name includes spaces, enclose the file name in double quotes: -paramfile ?$PMRootDirmy file.txt? Note: When you write a pmcmd command that includes a parameter file located on a

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Informatica Questions - 5

Is sorter an active or passive transformation? What happens if we uncheck the distinct option in sorter? Will it be under active or passive transformation?Sorter is an active transformation. if you don't check the distinct option it is considered as a passive transformation. Because this distinct option eliminates the duplicate records from the table.

How can we partition a session in Informatica?Partitioning option optimizes parallel processing on multiprocessor hardware byproviding a thread-based architecture and built-in data partitioning. GUI-basedtools reduce the development effort necessary to create data partitions and streamline ongoing troubleshooting and performance tuning tasks, while ensuringdataintegrity throughout the execution process. As the amount of data within an organization expands and real-time demand for information grows, the Power Center Partitioning option enables hardware and applications to provide outstanding performance and jointly scale to handle large volumes of data and users.

In update strategy target table or flat file which gives more performance? Why?Pros: Loading, Sorting, Merging operations will be faster as there is no index concept and Data will be in ASCII mode.Cons: There is no concept of updating existing records in flat file. As there is

no indexes, while lookups speed will be lesser.

What is the difference between constraint base load ordering and target load plan ?Constraint based load ordering

Example:Table 1---MasterTake 2---Detail

If the data in Table-1 is dependent on the data in Table-2 then Table-2 should be loaded first. In such cases to control the load order of the tables we need some conditional loading which is nothing but constraint based load. In Informatica this feature is implemented by just one check box at the session level.

What is parameter file?When you start a workflow, you can optionally enter the directory and name of aparameter file. The Informatica Server runs the workflow using the parameters in the file you specify.

For UNIX shell users, enclose the parameter file name in single quotes:

-paramfile '$PMRootDir/myfile.txt'

For Windows command prompt users, the parameter file name cannot have beginningor trailing spaces. If the name includes spaces, enclose the file name in double quotes:-paramfile ?$PMRootDirmy file.txt?

Note: When you write a pmcmd command that includes a parameter file located on a