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Home / Blog / Interview Questions / SQL Interview questions and Answers
SQL Interview questions and Answers
Meet the Author : Mr. Bharani Kumar
Bharani Kumar Depuru is a well known IT personality from Hyderabad. He is the Founder and Director of Innodatatics Pvt Ltd and 360DigiTMG. Bharani Kumar is an IIT and ISB alumni with more than 18+ years of experience, he held prominent positions in the IT elites like HSBC, ITC Infotech, Infosys, and Deloitte. He is a prevalent IT consultant specializing in Industrial Revolution 4.0 implementation, Data Analytics practice setup, Artificial Intelligence, Big Data Analytics, Industrial IoT, Business Intelligence and Business Management. Bharani Kumar is also the chief trainer at 360DigiTMG with more than Ten years of experience and has been making the IT transition journey easy for his students. 360DigiTMG is at the forefront of delivering quality education, thereby bridging the gap between academia and industry.
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Which of the following is not a valid SQL type?
- a) FLOAT
- b) NUMERIC
- c) DECIMAL
- d) CHARACTER
Answer - c) DECIMAL
"DECIMAL is not a valid SQL type because it is nothing but numeric only in SQL.
NUMERIC has fixed precision, and scale numbers range from -10^38+1 to 10^38-1.
FLOAT has floating precision number ranges from -1.79E + 308 to 1.79E + 308.
CHARACTER is a fixed-width character string data type that can be up to 8000 characters." -
What is the full form of SQL?
- Structured Query List
- Structure Query Language
- Sample Query Language
- None of these.
Answer - b) Structure Query Language
SQL stands for Structured Query Language. SQL lets you access and manipulate databases. SQL became a standard of the American National Standards Institute (ANSI) in 1986, and of the International Organization for Standardization (ISO) in 1987.
