SAS 9.2 Data Management Software Technical Manual

Contents
What’s New
vii
Overview
vii
PART
1
SAS 9.2 VSAM Processing: Overview and Techniques
Chapter 1
4 The Virtual Storage Access Method (VSAM)
What is Virtual Storage Access Method (VSAM)?
VSAM Data Access Types 9
Chapter 2
3
3
4 SAS Options and Variables for VSAM Processing
13
Introduction to SAS Options and Variables for VSAM Processing
Using SAS System Options
13
Using SAS Automatic Variables 14
Standard SAS INFILE Options
14
Special SAS Options for VSAM 16
Using the Special SAS Options
20
VSAM Option for the FILENAME Statement 22
Chapter 3
4 Accessing VSAM Data Sets
23
Accessing VSAM Data Sets
24
Reading a VSAM File
24
Writing to an Empty VSAM File
24
Updating a VSAM Data Set 24
Using Record-Level Sharing with VSAM
25
Extended-Format VSAM Data Sets
25
VSAM Options for the FILE and INFILE Statements
Chapter 4
25
4 Processing VSAM Data Sets in SAS Programs
Determining the Type of an Existing Data Set
30
Referring to VSAM Data Sets
30
Operations on VSAM Data Sets in SAS Programs 30
Reading Records from a VSAM Data Set 32
Adding Records to a VSAM Data Set 33
Updating Records in VSAM Data Sets
34
Erasing Records from a VSAM Data Set 35
Combined Operations 36
Examples of Using VSAM Data in SAS Programs 36
Chapter 5
4 Defining and Loading a VSAM Data Set
Defining a VSAM Data Set 45
Loading Records into a VSAM Data Set
Chapter 6
47
4 Processing an ESDS in a SAS Job
1
51
45
29
13
iv
Introduction to ESDS
51
Special SAS Options Used with an ESDS
Reading Records from an ESDS
Adding Records to an ESDS
52
52
54
Updating Records in an ESDS
56
Combined Operations on an ESDS
57
Adding Records after Reading
Chapter 7
58
4 Processing a KSDS in a SAS Job
Introduction to KSDS
59
59
Special SAS Options Used with a KSDS
60
Reading Records from a KSDS
61
Adding Records to a KSDS
68
Updating Records in a KSDS
69
Erasing Records from a KSDS
70
Combined Operations on a KSDS
Chapter 8
71
4 Processing an RRDS in a SAS Job
Introduction to Processing an RRDS 77
Special SAS Options Used with an RRDS
Reading Records from an RRDS
Adding Records to an RRDS
77
78
79
82
Updating Records in an RRDS
84
Erasing Records from an RRDS
86
Combined Operations on an RRDS
Chapter 9
87
4 Using Alternate Indexes for VSAM Data Sets
Introduction to Using Alternate Indexes
91
Creating an Alternate Index for an ESDS
91
Creating an Alternate Index for an Existing KSDS
Calculating Record Size 94
Chapter 10
92
4 Error-Handling Techniques and Error Messages
What are Physical and Logical Errors?
Physical Errors
Logical Errors
95
95
96
Error-Handling Techniques
97
Some Common Causes of Logical Errors
99
COBOL Status Key Values and VSAM Feedback Codes
PART
2
91
Appendices
103
4 System Options Dictionary
Appendix 2 4 Sample STUDENT Data Set
Appendix 1
Sample STUDENT Data Set
109
105
109
101
95
v
Appendix 3
4 IBM Documentation
IBM Documentation
Appendix 4
Index
111
4 Recommended Reading
Recommended Reading
Glossary
111
115
119
113
113
vi
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