Data Warehousing An operational system is which of the following? A system that is used to support decision making and is based on current data. A system that is used to run the business in real time and is based on historical data. A system that is used to support decision making and is based on historical data. A system that is used to run the business in real time and is based on current data. A system that is used to support decision making and is based on current data. A system that is used to run the business in real time and is based on historical data. A system that is used to support decision making and is based on historical data. A system that is used to run the business in real time and is based on current data. 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
Data Warehousing Data scrubbing can help upgrade data quality; it is not a long-term solution to the data quality problem. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Most operational systems are based on the use of transient data. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Joining is the process of partitioning data according to predefined criteria. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Periodic data are data that are physically altered once added to the store. False True False True ANSWER DOWNLOAD EXAMIANS APP
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