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Table 20. Open Feedback Area (continued)<br />
Offset Data Type Length Contents <strong>File</strong> Type<br />
62 Binary 4 Reserved.<br />
66 Binary 2 <strong>File</strong> type:<br />
All<br />
1 Display<br />
2 Printer<br />
4 Diskette<br />
5 Tape<br />
9 Save<br />
10 DDM<br />
11 ICF<br />
20 Inline data<br />
21 Database<br />
68 Character 3 Reserved.<br />
71 Binary 2 Number of lines on a display screen or number of lines on a printed page. Display,<br />
printer<br />
Length of the null field byte map. Database<br />
73 Binary 2 Number of positions on a display screen or number of characters on a printed line. Display,<br />
printer<br />
Length of the null key field byte map. Database<br />
75 Binary 4 Number of records in the member at open time. For a join logical file, the number Database,<br />
of records in the primary. Supplied only if the file is being opened for input. inline data<br />
79 Character 2 Access type:<br />
Database<br />
AR Arrival sequence.<br />
KC Keyed with duplicate keys allowed. Duplicate keys are accessed in<br />
first-changed-first-out (FCFO) order.<br />
KF Keyed with duplicate keys allowed. Duplicate keys are accessed in<br />
first-in-first-out (FIFO) order.<br />
KL Keyed with duplicate keys allowed. Duplicate keys are accessed in<br />
last-in-first-out (LIFO) order.<br />
KN Keyed with duplicate keys allowed. The order in which duplicate keys<br />
are accessed can be one of the following:<br />
v First-in-first-out (FIFO)<br />
v Last-in-first-out (LIFO)<br />
v First-changed-first-out (FCFO)<br />
KU Keyed, unique.<br />
81 Character 1 Duplicate key indication. Set only if the access path is KC, KF, KL, KN, or KU:<br />
82 Character 1 Source file indication.<br />
D Duplicate keys allowed if the access path is KF or KL.<br />
U Duplicate keys are not allowed; all keys are unique and the access path<br />
is KU.<br />
Y <strong>File</strong> is a source file.<br />
N <strong>File</strong> is not a source file.<br />
Database<br />
Database,<br />
tape, diskette,<br />
and inline<br />
data<br />
83 Character 10 Reserved.<br />
93 Character 10 Reserved.<br />
103 Binary 2 Offset to volume label fields of open feedback area. Diskette, tape<br />
105 Binary 2 Maximum number of records that can be read or written in a block when using<br />
blocked record I/O.<br />
All<br />
107 Binary 2 Overflow line number. Printer<br />
109 Binary 2 Blocked record I/O record increment. Number of bytes that must be added to the<br />
start of each record in a block to address the next record in the block.<br />
All<br />
111 Binary 4 Reserved.<br />
170 <strong>File</strong> <strong>Management</strong> V4R5
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