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.
Subscribe to:
Post Comments (Atom)
Extract: Performance Tips
Below listed some common performance tips for extract queries. Extract required columns only and specify in the query, avoid select * Extrac...
-
Below listed some common performance tips for extract queries. Extract required columns only and specify in the query, avoid select * Extrac...
-
The data warehouse / data mart are usually implemented in RDBMS. RDBMS provides lots of features to manage data which are useful for both op...
-
In traditional data modeling, we usually add "created date", "last modified date", "created by" and "last...
No comments:
Post a Comment