We need to understand the business processes and ask the right questions. Some managers will ask for whatever information they can get without thinking carefully about what they really need. Too much information can be as harmful as too little. Other managers may omit things they ought to know, or they may not know to ask for some types of information they should have.
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Extract: Performance Tips
Below listed some common performance tips for extract queries. Extract required columns only and specify in the query, avoid select * Extrac...
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Below listed some common performance tips for extract queries. Extract required columns only and specify in the query, avoid select * Extrac...
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Extract is the first step in the ETL process which obtains data from the source systems. This is our first question. How much data we need t...
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Measures are the values in your fact tables which provide numeric meaning to the business process event. There are three kinds of numeric me...
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