Upon completion the Informatica server stores the end value of a variable and is reused when session restarts. When values change during the session's execution it's called a mapping variable. Explain The Difference Between Mapping Parameter And Mapping Variable? One can group any number of sessions but it would be easier for migration if the number of sessions are lesser in a batch. How Many Number Of Sessions Can One Group In Batches?
PL SQL DEVELOPER INTERVIEW QUESTIONS AND ANSWERS SERIAL
Batches can have different sessions carrying forward in a parallel or serial manner. Batch execution can be used to combine sessions executions either in serial manner or in a parallel. Session can be carried out using the session's manager or pmcmd command. Explain How Batches Are Used To Combine Executions?Ī teaching set that needs to be implemented to convert data from a source to a target is called a session. Oracle DBA Tutorial Oracle DBA Interview Questions Moreover this type of index creation cannot be controlled after the load process at transformation level. Index creating scripts can be brought in line with the session's workflow or the post session implementation sequence. How Are Indexes Created After Completing The Load Process?įor the purpose of creating indexes after the load process, command tasks at session level can be used.
Other transformations including extractions and other outputs of single partitions are carried out in parallel. It's main purpose is to improve server's operation and efficiency. Partitioning a session means solo implementation sequences within the session. What Is The Benefit Of Partitioning A Session? There can be any number of repositories in informatica but eventually it depends on number of ports. How Many Repositories Can Be Created In Informatica? While a powerhouse server governs the implementation of various processes among the factors of server's database repository. Its main function is to assure the repository integrity and consistency. Repository server controls the complete repository which includes tables, charts, and various procedures etc. What Is The Difference Between A Repository Server And A Powerhouse? Through this data management can be improved. When all related relationships and nodes are covered by a sole organizational point, its called domain. For instance an organization having different chunk of data for its different departments i.e. On the other hand datamart is also a set of data which is designed to cater the needs of different domains. While in data warehouse there are assortments of all sorts of data and data is taken out only according to the customer's needs.
What The Difference Is Between A Database, A Data Warehouse And A Data Mart?ĭatabase includes a set of sensibly affiliated data which is normally small in size as compared to data warehouse. It gives better results but however the time required is high. One can do periodic analysis on that same source. Data can be provided with a global view to the server via a single source store. When the organization data is created at a single point of access it is called as enterprise data warehousing.
What Do You Mean By Enterprise Data Warehousing?
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