What is SQL?

Prepare for the DDR Data Science Interview. Practice with detailed questions and explanations to enhance your knowledge. Ace your interview!

Multiple Choice

What is SQL?

Explanation:
SQL is the standard language for interacting with relational databases. It lets you ask for data and perform operations on it in a consistent way across different systems. With SQL you can query data using SELECT, add new data with INSERT, change existing data with UPDATE, or remove data with DELETE. You can also define or modify the structure of the database itself using commands like CREATE, ALTER, and DROP. This standardization across relational database systems is what makes SQL the go-to language for working with relational data. It’s not a numerical data format, it’s not a hardware accelerator, and it’s not a general-purpose programming language for computations—it's specialized for describing what data you want and how to manipulate it within relational tables.

SQL is the standard language for interacting with relational databases. It lets you ask for data and perform operations on it in a consistent way across different systems. With SQL you can query data using SELECT, add new data with INSERT, change existing data with UPDATE, or remove data with DELETE. You can also define or modify the structure of the database itself using commands like CREATE, ALTER, and DROP. This standardization across relational database systems is what makes SQL the go-to language for working with relational data. It’s not a numerical data format, it’s not a hardware accelerator, and it’s not a general-purpose programming language for computations—it's specialized for describing what data you want and how to manipulate it within relational tables.

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