ERK INFOHUT
Hi Friends,
Welcome to my Channel
I have been working in Data analytics technology over a 5 years and I want to share our knowledge through this channel.
Data Analytics is a process of inspecting, cleansing, transforming and modeling data with the goal of discovering useful information, informing conclusions and supporting decision-making.
"Where there is data smoke, there is business fire". this famous quote from -Thomas Redman
ERK INFOHUT
Hi Friends,
Big news from Tableau in 2026! Previously, Tableau Public Desktop supported only limited data source connections. Now Tableau is offering a license-free version with access to all data sources. Click the link below to download it and start using it for your analysis.
Tableau desktop : www.tableau.com/products/desktop-free/download
2 months ago | [YT] | 4
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ERK INFOHUT
Which function returns current date and time?
4 months ago | [YT] | 2
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ERK INFOHUT
What is the result of UNION?
4 months ago | [YT] | 2
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ERK INFOHUT
What does a correlated subquery do?
4 months ago | [YT] | 2
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ERK INFOHUT
Which constraint is used to maintain referential integrity?
4 months ago | [YT] | 1
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ERK INFOHUT
What happens if a subquery returns more than one row?
4 months ago | [YT] | 2
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ERK INFOHUT
What does the COALESCE() function do?
4 months ago | [YT] | 1
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ERK INFOHUT
Which index improves performance for range-based queries?
4 months ago | [YT] | 0
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ERK INFOHUT
Which clause is executed after GROUP BY?
4 months ago | [YT] | 2
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ERK INFOHUT
Your dataset has 5+ years of data, but users only analyze the last 12 months.
What should you implement?
4 months ago | [YT] | 2
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