Merging queries in Power BI is the process of combining columns from two or more tables based on matching values, similar to SQL joins. This is done in Power Query Editor using different join types such as Inner Join, Left Outer Join, Right Outer Join, Full Outer Join, and others. Understanding these joins is crucial for creating accurate and meaningful datasets.
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Which option is used to merge queries in Power Query Editor?
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Question 3 of 15
3. Question
What is required before performing a merge in Power Query?
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Question 4 of 15
4. Question
Which join type keeps only matching rows from both tables?
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Question 5 of 15
5. Question
Which join type keeps all rows from the first table and matching rows from the second table?
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Question 6 of 15
6. Question
Which join type keeps all rows from both tables, matching where possible?
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Question 7 of 15
7. Question
Which join type is the reverse of Left Outer Join?
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Question 8 of 15
8. Question
Which join type keeps only rows from the first table that have no matches in the second table?
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Question 9 of 15
9. Question
Which join type keeps only rows from the second table that have no matches in the first table?
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Question 10 of 15
10. Question
What happens after merging queries in Power BI?
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Question 11 of 15
11. Question
After a merge, how do you bring specific columns from the related table into the main table?
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Question 12 of 15
12. Question
Can you merge more than two tables in Power Query?
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Question 13 of 15
13. Question
Which is a potential issue when merging queries with mismatched data types in the key column?
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Question 14 of 15
14. Question
What is a best practice before merging queries in Power BI?
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Question 15 of 15
15. Question
Which join type is most useful for identifying missing records between two tables?
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Summary
These Merging Queries (Joins) in Power BI MCQs cover join types, matching keys, merge steps, and best practices for combining datasets. Mastering merges ensures accurate, relational data preparation before building reports.
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