What is a key characteristic of an RDBMS?
Anonymous Quiz
0%
Stores data in XML files
100%
Organizes data into related tables
0%
Uses key-value pairs
0%
Stores data as flat text
Which of the following is an example of structured data?
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0%
Email body content
0%
Recorded audio file
100%
SQL database table
0%
Webpage HTML
Which of the following best represents Semi-Structured data?
Anonymous Quiz
67%
Excel sheet with columns and rows
33%
JSON file with key-value pairs
0%
Video recording
0%
PDF scan of a document
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What does the OFFSET clause do in SQL?
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0%
Limits columns in a query
0%
Joins two tables with an offset condition
100%
Skips a specified number of rows before starting to return results
0%
Reverses the order of the result
What is a key characteristic of NoSQL databases?
Anonymous Quiz
0%
They only support SQL syntax
100%
They support flexible, schema-less data storage
0%
They require strict table joins
0%
They only store data in flat files
Which is the correct ORDER of SQL query execution?
Anonymous Quiz
0%
SELECT → FROM → WHERE → GROUP BY → HAVING → ORDER BY → LIMIT
50%
FROM → WHERE → GROUP BY → HAVING → SELECT → ORDER BY → LIMIT
0%
WHERE → FROM → GROUP BY → HAVING → SELECT → ORDER BY → LIMIT
50%
FROM → SELECT → WHERE → GROUP BY → HAVING → ORDER BY → LIMIT
Which clause is evaluated first in SQL execution order?
Anonymous Quiz
50%
Select
0%
Group by
50%
From
0%
Order by
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Recursive CTE in SQL with Real-World Examples
If you’re exploring advanced SQL concepts, one powerful tool you must understand is the Recursive CTE (Common Table Expression). This…
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