Olap and oltp

What are the main important differences between olap and oltp

Questions by ganesh.b   answers by ganesh.b

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olap:online analytical processing is that which describes procesing at warehouses.
oltp:online transactional processing is that which describes at the operational sites..
oltp                                                                        olap
1.Mb-tb of data                                               1.gb-tb of data
2.mostly updates                                            2.mostly reads
3.many small transactions                              3.summerized and consolidated data
4.raw data which is updated frequently         4.users are decision makers and analyts
5.consistency recoverability is critical
6.clerical users

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