What are the approaches used by optimizer during execution plan?
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What are the different types of datawarehosuing?
What is surrogate key? Where we use it? Explain with examples.
What should I have in mind when building olap solution from scratch?
Which kind of index is preferred in DWH?
Explain difference between e-r modeling and dimentional modeling?
If two relational tables are connected to sq trans, what are the possible errors it will be thrown?
How can you import tables from a database?
How to handle multi value dimensions?
what is difference between drill & scope of analysis?
What are data validation strategies for data mart validation after loading process?
Explain what are components of reportnet?
What is partitioning? What are the types of partitioning?