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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Fact table stores the measures of the business process event and associates them with the descriptive context (dimension tables). So, there ...
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Factless fact table is the fact table which log an business event but does not contain any measure fields. Typical use cases are the attenda...
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We usually implement the multi-dimensional data model in RDBMS or CUBE. Today, we focus on the Constraints and indexes in multi-dimensional ...
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