SAS® 9.1 SQL Procedure
Original Publication Date: 2004-Dec-31
Included in the Prior Art Database: 2015-Sep-19
SAS Institute Inc.
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SAS® 9.1 SQL Procedure
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The correct bibliographic citation for this manual is as follows: SAS Institute Inc., 2004. SAS ® 9.1 SQL Procedure User's Guide. Cary, NC: SAS Institute Inc.
SAS® 9.1 SQL Procedure User's Guide
Copyright © 2004, SAS Institute Inc., Cary, NC, USA.
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1st printing, January 2004
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4 Introduction to the SQL Procedure 1
What Is SQL? 1
What Is the SQL Procedure? 1
Comparing PROC SQL with the SAS DATA Step 3 Notes about the Example Tables 4
4 Retrieving Data from a Single Table 11 Overview of the SELECT Statement 12
Selecting Columns in a Table 14
Creating New Columns 18
Sorting Data 25
Retrieving Rows That Satisfy a Condition 30
Summarizing Data 39
Grouping Data 45
Filtering Grouped Data 50
Validating a Query 52
4 Retrieving Data from Multiple Tables 55 Introduction 56
Selecting Data from More Than One Table by Using Joins 56
Using Subqueries to Select Data 74
When to Use Joins and Subqueries 80
Combining Queries with Set Operators 81
4 Creating and Updating Tables and Views 89 Introduction 90
Creating Tables 90
Inserting Rows into Tables 93
Updating Data Values in a Table 96
Deleting Rows 98
Altering Columns 99
Creating an Index 102
Deleting a Table 103
Using SQL Procedure Tables in SAS Software 103
Creating and Using Integrity Constraints in a Table 103
Creating and Using PROC SQL Views 105
4 Programming with the SQL Procedure 111 Introduction 111
Using PROC SQL Options to Create and Debug Queries 112
Improving Query Performance 115
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Accessing SAS System Information Using DICTIONARY Tables 117
Using PROC SQL with the...