What are the properties of sequence generator?

Properties of Sequence Generator Transformation The default value is 0. Maximum value is 9,223,372,036,854,775,806. The maximum value that the Integration Service generates. If the Integration Service reaches this value during the session, and the sequence is not configured to cycle, the session fails.

Is it possible to change the sequence generator properties?

Creating Sequence Generator Transformation: Select the sequence generator transformation. Enter the name and then click on Create. Click Done. Edit the sequence generator transformation, go to the properties tab and configure the options.

What is Nextval and Currval in sequence generator?

The Sequence Generator transformation contains pass-through fields and two output fields, NEXTVAL and CURRVAL. In an. elastic mapping. , the transformation contains one output field, NEXTVAL. You can connect the output fields to one or more downstream transformations.

What is sequence transformation in Informatica?

The Sequence Generator Transformation in Informatica is a connected transformation that generates numeric values. We can mainly use this transformation to generate primary keys, foreign keys or to fill or replace the missing primary keys with unique ones.

Is sequence generator reusable in Informatica?

Informatica Server updates repository when it caches the values. When you have a reusable Sequence Generator transformation in several sessions and the sessions run at the same time, use Number of Cached Values to ensure each session receives unique values in the sequence.

What are the applications of sequence generator?

The sequence generator circuit is used to generate a prescribed series of bits in synchronization through a CLK. This kind of generator is used as a code generator, counters, random bit generators, sequence, and prescribed period generator.

Why do we use sequence generators?

The sequence generator is used to generate primary key values & it’s used to generate numeric sequence values like 1, 2, 3, 4, 5 etc. For example, you want to assign sequence values to the source records, then you can use sequence generator.

What is reset in sequence generator transformation?

Reset — Restarts the sequence at the current value each time a session.

How sequence generator behave when it is aborted?

When you use a combination of non-reusable and number of cached values (say set to 100), IS will start with the value saved in the repo and reserve or cache 100 values for this session and update the repo’s next available value. If only 30 get used in the session, remaining 70 are discarded.