Pentair Water India Hardware Engineer Interview Questions and Answers

Good. They inquired about electric vehicles.

Q1. What are the basic concepts of SQL?
Ans. 
SQL is a programming language used for managing and manipulating relational databases.
• SQL stands for Structured Query Language

• Basic concepts include SELECT (retrieve data), INSERT (add data), UPDATE (modify data), DELETE (remove data)

• SQL uses commands like SELECT, INSERT, UPDATE, DELETE, JOIN, WHERE, GROUP BY, ORDER BY, etc.

• SQL is used to interact with databases like MySQL, PostgreSQL, Oracle, SQL Server, etc.
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Q2. C++
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