September 2004
Beginner to intermediate
388 pages
6h 34m
English
Content preview from PROC SQL: Beyond the Basics Using SAS®
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2.2. Data Types Overview
The purpose of a database is to store data. A database contains one or more tables (and other components). Tables consist of columns and rows of data. In the SAS implementation of SQL, there are two available data types: 1) numeric and 2) character.
2.2.1. Numeric Data
The SAS implementation of SQL provides programmers with numerous arithmetic, statistical, and summary functions. It offers one numeric data type to represent numeric data. Columns defined as a numeric data type with the NUMERIC or NUM column definition are assigned a default length of 8 bytes, even if the column is created with a numeric length less than 8 bytes. This provides the greatest degree of precision allowed by the SAS System. In the example ...
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