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What is Oracle 12c SQL - Chapter 2 Basic SQL SELECT Statements about?

This document covers the basics of SQL SELECT statements in Oracle 12c, including the mandatory SELECT and FROM clauses for retrieving data. It explains how to select all, one, or multiple columns, use column aliases, perform arithmetic operations, and suppress duplicates with DISTINCT or UNIQUE. Additionally, it discusses concatenation of data and the handling of NULL values.

Author

bellebei0610

Language

EN