"Oracle培训PPT：基础SQL SELECT语句功能与实践"

Summary: The given content is a PowerPoint presentation on Oracle training, specifically focusing on SQL SELECT statements. The presentation begins with a slide stating that it is copyrighted by Oracle Corporation in 2001 and all rights are reserved. The objective of this chapter is to enable the learners to: 1. Enumerate the functionalities of SQL SELECT statements. 2. Execute simple SELECT statements. 3. Understand the differences between SQL language and SQL*Plus commands. The functionalities of SQL SELECT statements are categorized into three types: 1. Row listing 2. Table listing 3. Joining tables The basic structure of a SELECT statement is as follows: SELECT *|{[DISTINCT] column|expression [alias],...} FROM table; The SELECT clause identifies which columns to choose in the output, while the FROM clause identifies the table from which to select data. The presentation lacks substantial information and comprehensive explanations due to the limited content provided. However, it serves as an introduction to the topic of SQL SELECT statements and provides an outline for future learning.