how do u extract data from different data sources explain
with an example?
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how to join two tables without using joiner transformation .advantages of joiner over lookup and vice versa.
what is different between sequential batch and concurrent batch and which is recommended and why?
If you concatenate data from a normalizer transformation,the ports you concatenate cannot include OCCURS(T/F).
What is data modeling and data mining?
Explain about power designer data modeling software?
What is abap? What are idocs?
what is the difference between OLTP database and data warehousing database?
A mapping contains source table S_Time(stat_year,end_year) target table TIM_DIM(date,day,month,year,quarter) stored procedure transformation: A procedure has two parameters I_end_year and output parameter as O_date ,day , month, year, quarter, If this session is running, how many rows will be available in the target and why?
What are the steps involved in etl process?
Difference between flat files and relational sources?
what is the difference steps for data modeling?
how do u really know that paging to disk is happening while u are using a lookup transform?
Teradata 
