1. What does the "HAVING" clause typically follow in a SQL query?
2. Which PostgreSQL data type is used to store binary data?
3. What is the purpose of the "LIMIT" clause in a SQL query?
4. In PostgreSQL, which data type is used to store large text or character data?
5. What is the primary purpose of database normalization?
6. Which PostgreSQL data type is used to store large numeric values?
7. What is the role of the "CASCADE" option when defining foreign key constraints?
8. In PostgreSQL, which operator is used to concatenate strings?
9. What is the purpose of the PostgreSQL "pg_hba.conf" file?
10. What is the purpose of the PostgreSQL "pg_ctl" utility?
11. Which SQL function is used to count the number of rows in a table?
12. What is the purpose of the "RAISE" statement in PostgreSQL?
13. What does the PostgreSQL "pg_stat_statements" module provide?
14. In PostgreSQL, what is a "subquery"?
15. What is the purpose of the "TRUNCATE" statement in PostgreSQL?