Which of the following languages supports variables, loops, and exception handling?
Anonymous Quiz
0%
SQL
0%
PL/SQL
0%
T-SQL
100%
Both B and C
T-SQL is primarily used with which database system?
Anonymous Quiz
0%
Oracle
100%
SQL Server
0%
PostgreSQL
0%
SQLite
Which one is a procedural extension of SQL used in Oracle?
Anonymous Quiz
0%
SQL
100%
PL/SQL
0%
T-SQL
0%
MySQL
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Medium
SQL Fanout: The Hidden Trap in Joins and Aggregates
If youβre comfortable with SQL, youβve likely used JOIN and aggregate functions (SUM, COUNT, etc.) countless times. But lurking beneathβ¦
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?
Anonymous Quiz
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
50%
Excel sheet with columns and rows
50%
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?
Anonymous Quiz
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 β FROM β WHERE β GROUP BY β HAVING β ORDER BY β LIMIT
100%
FROM β WHERE β GROUP BY β HAVING β SELECT β ORDER BY β LIMIT
0%
WHERE β FROM β GROUP BY β HAVING β SELECT β ORDER BY β LIMIT
0%
FROM β SELECT β WHERE β GROUP BY β HAVING β ORDER BY β LIMIT
Which clause is evaluated first in SQL execution order?
Anonymous Quiz
0%
Select
0%
Group by
100%
From
0%
Order by
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Medium
Mastering MERGE in SQL β Upsert Made Easy with Examples
Have you ever faced a situation where you need to update, insert, or delete records in a target table based on a source tableβββall in aβ¦
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Medium
Recursive CTE in SQL with Real-World Examples
If youβre exploring advanced SQL concepts, one powerful tool you must understand is the Recursive CTE (Common Table Expression). Thisβ¦
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