Question { Wipro, 47410 }

1)WHAT IS THE EXACT DIFFERENCE BETWEEN TERADATA AND ORACLE?
2)MOST OF THE COMPANIES ARE USING TARA DATA FOR "DWH PROJECTS" ONLY? WHY?

Answer

Addition to above answers

Lets Think there are 50 records to be inserted into the table and each record will take 1 sec. If we are doing in oracle or Teradata (with 1 amp) It will take 50 secs. But due to parallelism we can increase the amps. let us assume we have 5 amps. So, now the amount of work is distributed between 5 Amps and now it will take only 10 sec's. Whatever the database we are using time efficient should be imp. So, Teradata is used in many DWH projects.