15/02/2017
Interview Questions:
1.what are the diff types of filters.
Ans : Normal filter
2 .Quick filter
3. Cascading filter
4.global filter
5.context filter
6. Data source filter
7. User filers.
2.what is diff b/w quick filter and normal filter.
Ans. Normal filer only display data in view and filter can't modify by users bcz is hide .
Quick filter is dynamic filer. Bcz it displays is views. User can modify to the the data by selecting the field values.
3.what is data blending.
Ans. Create relationship with tables from two different data sources.(Sql. Oracle). It creates by default left join. Also possible left. Right , and inner but not full join.
4.explane about do-not chart.
It creates to Comparison with Total values and it's contributed values. Like. Department total sales and each department sales.
5.how many types of lods functions are dir,do u used any of ur project.
Lod expressions are from 9 version. Like FIXED. INCLUDE AND EXCLUDE.
6.how will u test da report
Tableau developer has to test worksheets or dashboard always. BCZ TO match the data with database and some other format as well.
7.explain the architecture of tableau.
It takes min one hour to explain to understand better.
8.what are the diff compontes have involved in da tableau architech.
Data server components. Vizql server components. Application server components. Gateway server components. Background server components.
9.how much u will write for datawaresing concepts how much u write
10.what do u mean by star-schema model.
11.how many databases have been worked,
backend database,
12.i have a scenario dat how to insert and update in a time in a sql
query of a second highet salary of an employee
