Data Warehousing Data transformation includes which of the following? A process to change data from a detailed level to a summary level A process to change data from a summary level to a detailed level Joining data from one source into various sources of data Separating data from one source into various sources of data A process to change data from a detailed level to a summary level A process to change data from a summary level to a detailed level Joining data from one source into various sources of data Separating data from one source into various sources of data ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Most operational systems are based on the use of transient data. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Every key used to join the fact table with a dimensional table should be a surrogate key. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Data in the data warehouse are loaded and refreshed from operational systems. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Independent data marts are often created because an organization focuses on a series of short-term business objectives. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing The role of the ETL process is to identify erroneous data and to fix them. False True False True ANSWER DOWNLOAD EXAMIANS APP
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