PostgreSQL Objective Questions & Answers for Beginners Set-1
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1. What command is used to create a new PostgreSQL database?


2. Which PostgreSQL data type is used to store whole numbers?


3. In PostgreSQL, what does the term "primary key" refer to?


4. Which SQL command is used to retrieve data from a PostgreSQL table?


5. What is the purpose of the "WHERE" clause in a SQL query?


6. What is the default port number for PostgreSQL?


7. What does the acronym "SQL" stand for?


8. Which SQL command is used to insert data into a PostgreSQL table?


9. What is a "foreign key" in a PostgreSQL table?


10. Which SQL command is used to update data in a PostgreSQL table?


11. What does "ACID" stand for in the context of database transactions?


12. What is the purpose of the "GROUP BY" clause in a SQL query?


13. What is the role of the "HAVING" clause in a SQL query?


14. In PostgreSQL, what is the purpose of an index?


15. What is the purpose of the "ORDER BY" clause in a SQL query?


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