What is the use of sorter transformation in Informatica?

Sorter transformation in Informatica is used to sort the data in an ascending or descending order based on single or multiple keys. This is the type an active transformation which sorts the data either in ascending order or descending order.

How do I sort data in Informatica?

To sort the data, double-click on the Source Qualifier transformation, click on the Properties tab, and specify Number Of SortedPorts as shown in the following screenshot: It will be possible only if your source is a database table and only if you wish to sort the data Get Learning Informatica PowerCenter 10.

Is sorter an active transformation?

The Sorter transformation is an active transformation. You can use the Sorter transformation to increase performance with other transformations. For example, you can sort data that passes through a Lookup or an Aggregator transformation configured to use sorted incoming fields.

How can the sorter transformation improve performance?

For optimal performance, configure the Sorter cache size with a value less than or equal to the amount of available physical RAM on the Data Integration Service node. Allocate at least 16 MB of physical memory to sort data using the Sorter transformation. The Sorter cache size is set to 16,777,216 bytes by default.

How can lookup transformation improve performance?

To improve performance, create a filter condition to reduce the number of lookup rows retrieved from the source when the lookup cache is built. Index the lookup table. The Data Integration Service needs to query, sort, and compare values in the lookup condition columns.

What is Master outer join in Informatica?

Master outer join. In Master outer join, all records from the Detail source are returned by the join and only matching rows from the master source are returned. Detail outer join. In detail outer join only matching rows are returned from the detail source, and all rows from the master source are returned.

What is update strategy transformation in Informatica?

Update Strategy Transformation is an active and connected transformation, which is used for Inserting, Updating, Deleting and rejecting the records in the target table. The target table should contain Primary key.

Is update strategy an active transformation?

The Update Strategy Transformation in Informatica is an Active and Connected transformation. It is useful to update, insert, or delete the records in a target based on source table data. And the beauty of this transformation is: you can restrict the records from not reaching into the target table.

How do I increase sorter cache size in Informatica?

To configure the cache size in the session:

In the Workflow Manager, open the session.
Click the Mapping tab.
Select the mapping object in the left pane.
Use one of the following methods to set the cache size:
Select a mode.
Provide the input based on the transformation type, and click Calculate.

How do I configure the sorter transformation?

You can configure the Sorter transformation for case-sensitive sorting and for distinct output. The Sorter transformation is an active transformation. When you create a Sorter transformation, you specify ports as sort keys and configure each sort key port to sort in ascending or descending order.

How to improve the performance of Informatica joiner transformation?

Always prefer to perform joins in the database if possible, as database joins are faster than joins created in Informatica joiner transformation. Sort the data before joining if possible, as it decreases the disk I/O performed during joining. Make the table with less no of rows as master table.

What is the size of sorter transformation [highyieldsprddelta] cache?

Sorter Transformation [HIGHYIELDSPRDDELTA] required 2-pass sort (1-pass temp I/O: 23224320 bytes). You may try to set the cache size to 30 MB or higher for 1-pass in-memory sort.

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