Indexes can be clustered and non-clustered indexes.
Clustered index keeps all the records in the database in the order of clustered index key.
There can be only one clustered index per table.
Non-clustered indexes are stored as B-tree structure in their own storage separate from data storage in the table.
How to determine what records to extract?
Do we need an ETL tool? When do we go for the tools in the market?
Can we use procedural logic inside Infromatica? If yes how, if now how can we use external procedural logic in informatica?
Can we override a native sql query within Informatica? Where do we do it? How do we do it?
What are parameter files? Where do we use them?
How can we use mapping variables in Informatica? Where do we use them?
What is a mapping, session, worklet, workflow, mapplet?
What is Informatica Metadata and where is it stored?
How do we call shell scripts from informatica?
Can Informatica load heterogeneous targets from heterogeneous sources?
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