POSTGRESQL DATABASE INTERVIEW QUESTIONS

What does the "=" operator do in PostgreSQL?

Can the "=" operator be used to compare values of different data types in PostgreSQL?

How is the "=" operator typically used in a SELECT statement in PostgreSQL?

How does the "=" operator in PostgreSQL differ from the one in ORACLE SQL?

Can the "=" operator be used with NULL values in PostgreSQL? Explain your answer.

Explain how the "=" operator can impact query performance in PostgreSQL.

Describe a scenario where the "=" operator might yield unexpected results due to data type differences in PostgreSQL.

How does PostgreSQL handle the "=" operator in terms of collation and case sensitivity for string comparisons?

Discuss the role of the "=" operator in JOIN operations in PostgreSQL.

In a PostgreSQL database, how would you ensure that the "=" operator is used efficiently in a query involving large datasets? Explain any indexing strategies or query optimizations that might be relevant.