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IBM 3741 Operator's Manual page 72

Data station
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Updating Records
To make changes to existing records, put the machine in Update
(U) mode. The following example is a typical update procedure
for changing data entered in a particular field or a record in
a data set.
1.
2.
3.
4.
5.
6.
Set the AUTO REC ADV and AUTO DUP/SKIP switches
to OFF.
Set the PROG NUM SHIFT switch to ALL CHAR.
Note:
When this switch is set to ALL CHAR, all upper
shift characters will be accepted in numeric fields.
Load the programs. (See
How to Load a Program.)
Insert the diskette (displays the sector 08 data set label).
Press FUNCT SEL lower and UPDATE.
Press REC ADV until the record you want to update is
displayed.
Note:
You can also do search operations to find the
records you want to update. In this case, see
Search.
62
7.
Press SEL PROG.
8.
9.
Key in a 1, 2, 3, 4, 5, 6, 7, 8, 9, or A (storage area where
the program is stored).
Move the cursor (press FIELD ADV or CHAR ADV) to
the first position of the field to
be
changed.
10.
Key in the new field information.
11.
Press REC ADV (enters the updated record on the disk).
12.
Press REC ADV or do a search address operation to get
to other records requiring change, then repeat steps 9
through 11 for each record requiring a change.
(continue to step
13)

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