Design an ETL process( batch job/script)from source to starting that u will not be dependent on the source in the near future?please elobarate details on what are things to consider.if you'd like to do a diagram that will be great.please answer it

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How to fetch/retrieve the data from hieranchical database and put it into the relational database? for e.g I want to extract the data from IMS DB2 database which is a hierarchical db and load that data into the relational database which is a SQL server.Are there any tools available for directing extracting data from hierarchical db and loading into the relational database (SQL server)?

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How does database replication work?

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After normalization, what are the conditions which have to keep in mind to de-normalize it?

0 Answers   C DAC, CDAC,

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What is lagging in DBMS ?

0 Answers   Hexaware,

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How to do performance tunning a database in DB2 V8.2 UDB in linux

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How default key is different from primary key?

0 Answers   Abacus,

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Is data lake a database?

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How do you connect to a database?

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What is Stored procedure ?

4 Answers   IBM, iGate, Inspira Technologies,

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What are different types of joins used in?

0 Answers   Amazon,

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What are indexes in oracle?

0 Answers   CGI,

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