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I applied via Referral and was interviewed in Apr 2021. There were 3 interview rounds.
Live vs Extract in Tableau and why Extract is faster
Live connection directly queries the data source while Extract creates a static snapshot of the data
Extracts are faster because they reduce the amount of data transferred over the network
Extracts can be scheduled to refresh at specific intervals
Extracts can be compressed to reduce file size and improve performance
Yes, it is possible to update data in Tableau Extract.
Tableau Extracts can be refreshed to update data
Data can be added, removed or modified in the data source and then refreshed in Tableau
Extracts can be set to refresh automatically or manually
Relationships are used to connect tables in Tableau Prep while Joins are used to combine tables in Tableau Desktop.
Relationships are used in Tableau Prep to connect tables based on common fields.
Joins are used in Tableau Desktop to combine tables based on common fields.
Relationships are used to create a flow of data between tables in Tableau Prep.
Joins are used to create a single table from multiple tables in Tableau D...
Dashboard Actions are interactive elements that allow users to interact with the data on a dashboard.
Dashboard Actions are used to filter, highlight, or navigate to other dashboards or web pages.
Steps to apply Dashboard Actions include selecting the element to apply the action to, choosing the type of action, and configuring the action settings.
Examples of Dashboard Actions include clicking on a chart to filter the dat...
Use a parameter to filter data and create two separate tables, then combine them using a union.
Create a parameter to select the number of top and bottom rankings to display
Create a table for the top rankings using the parameter and the RANKX function
Create a table for the bottom rankings using the parameter and the RANKX function
Combine the two tables using a union
Add a column to differentiate between top and bottom ra
Sets are a collection of unique values while groups are a collection of related values.
Sets contain only unique values while groups can have repeated values.
Sets are used for filtering data while groups are used for aggregating data.
Sets are used in Tableau for creating custom fields while groups are used for creating hierarchies.
Example of a set: a set of customers who have made a purchase in the last month.
Example of...
Optimize data source, reduce number of rows/columns, use extracts, optimize queries, use filters.
Optimize data source by removing unnecessary columns and rows
Reduce number of rows and columns to only necessary data
Use extracts instead of live connections
Optimize queries by using custom SQL or aggregating data
Use filters to limit the amount of data being extracted
Large data extracts in Tableau are handled by optimizing data sources, using filters, and aggregating data.
Optimize data sources by removing unnecessary columns and filtering data before extracting.
Use filters to limit the amount of data extracted.
Aggregate data to reduce the number of rows and columns.
Consider using Tableau's data engine to improve performance.
Use incremental extracts to only extract new or updated da...
Top trending discussions
posted on 2 Oct 2018
posted on 10 Feb 2022
I applied via Naukri.com and was interviewed before Feb 2021. There were 2 interview rounds.
I applied via Company Website and was interviewed in May 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed in Jul 2020. There was 1 interview round.
I applied via Recruitment Consulltant and was interviewed before Mar 2021. There were 2 interview rounds.
I applied via Walk-in and was interviewed before Oct 2020. There were 3 interview rounds.
posted on 29 Jan 2021
I applied via Naukri.com and was interviewed in Jul 2020. There were 4 interview rounds.
posted on 14 Mar 2021
I applied via Naukri.com and was interviewed in Sep 2020. There were 3 interview rounds.
Some of the top questions asked at the Barclays Global Service Centre Senior Business Intelligence Analyst interview -
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