Transcript RPG/400 Tables

RPG/400 Tables
Tables
• Contains related or similar data
– Same data format
• Organized in columns and rows
• Uses:
– Validation
– Decoding
Tables for Validation
State Abbreviation
AK
AL
AR
AZ
CA
• Verify that code or value
exists or is acceptable
Tables for Decoding
State Abbreviation
State Name
Tax Rate
AK
Alaska
.0000
AL
Alabama
.0400
AR
Arkansas
.0000
AZ
Arizona
.0500
• Find a related or corresponding value
Loading Tables
• Compile time
• Pre-runtime
(runtime or execution time)
An RPG/400 Table
• Table names
begin TAB___
• Extension specifications
E
tabcod
50 2 A
• Table look-up
C
code lokup tabcod
50
RPG/400 Related Tables
• Extension specifications
E
tabcod
50 2 A tabnam 14
• Table look-up
C
code lokup tabcod tabnam
50
Questions?