Is data lake a database?
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What is the DIF format and when we will use in teradata
Why merge statement is used inside the database?
Explain buffer manager?
sparse lookup and where its options we find in OCI and db2?
if we have set auto differencial back up then waht is difference between 1.appen to media 2.over right the existing media
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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
What is ole db in ssis?
How heap is implemented in database?
What is database bounce?
Is data lake a database?
What is a Transformation?
plz suggest me the book for preparation of NIC exam.