New Data Warehouse General Interview Questions :: ALLInterview.com http://www.allinterview.com New Data Warehouse General Interview Questions en-us capital of tamilnadu http://www.allinterview.com/showanswers/98520.html chennai What's a Cube in Rolap? http://www.allinterview.com/showanswers/93747.html ROLAP Cube is a datastructure that is used for faster analysis of data.ROLAP is slow at analysis but large at capacity(Multibillion rows can b stored) u can use good indexes to improve its performance in siebel analytics by using dashboard prompts in a page have 2 repor http://www.allinterview.com/showanswers/92085.html in the second report you should not mention columns as is prompted what are the similarities between ROLAP and MOLAP http://www.allinterview.com/showanswers/85680.html ROLAP and MOLAP both are storage models which are governed by OLAP engines. Business rule implemntation depends on? 1.)ETL requiremnts 2.)ETL per http://www.allinterview.com/showanswers/84823.html etl performance. i dont know currect answer... How to handle time period attribute for time dependent data?? a.)add http://www.allinterview.com/showanswers/84822.html Answer is c.)add time period simply and make it not null. How to handle time period attribute for time dependent data?? a.)add http://www.allinterview.com/showanswers/84821.html The answer should be option (a). Add time period as a part of primary key Which is the optimized method of extracting the data. http://www.allinterview.com/showanswers/84820.html Delta loading is a way to extract data in a optimized way. Doing the incremental load by tracking the last update date or modified date makes the ETL processing faster. if we increase the number of dimensions will the rows in fact table i http://www.allinterview.com/showanswers/84819.html The number of rows in a fact table depends upon the grain of the fact. Dimensions can only describe the data in the fact table. Adding more dimensions will not increase the number of rows unless it impacts the grain of the fact. e.g You have fact at Select * from emp,dept,loc where emp.deptno left outer join dept.dep http://www.allinterview.com/showanswers/84593.html You can very well put Inner / Left Outer / Right Outer join in the same SQL Query. If I have table T1 and table T2 T1 has 250 cols and 10,000 rows T2 http://www.allinterview.com/showanswers/84591.html Whether table T1 and T2 are dimension or fact table depends on the information they store. If the all the measures are in T1 with dimensions key in it then T1 table is fact and if T1 is having a pk and textual information then it is dimension and how much memory space occupied real time project (roughly)? http://www.allinterview.com/showanswers/84094.html Hi, If any hav Informatica n DWH FAQ's,Plz do fwd to s.rajani http://www.allinterview.com/showanswers/81554.html can anybody mail me the FAQS for hyperion essbase amd planning http://www.allinterview.com/showanswers/80905.html where exactly in dataware house a confirmed dimension can be created http://www.allinterview.com/showanswers/78584.html A confirmed Dimension, by definition, means a single dimension table is actually connected to more than one fact table in your dimensional model. So, if a dimension table is shared across two fact tables, for example, then that dimension is calle