Answer / kartikeya bommuluri

Direct Input (DI) programs work exactly similar to BI
programs. But the only difference is, instead of processing
screens they validate fields and directly load the data
into tables using standard function modules. For this
reason, DI programs are much faster (RMDATIND - Material
Master DI program works at least 5 times faster) than the
BDC counterpart and so ideally suited for loading large
volume data. DI programs are not available for all
applicatioDirect Input.

direct input is to use Without calling the screens but all
the validations should be done and only for master datas
upload.


Direct Input method:

1. Only for error free datas and also master data
updation.
2. It will directly updates the database table. No
screens involved.
3. Transaction BMVO or Program RBMVSHOW has been
usedn areas.



Thus a program using direct input must care for
intermittent commits to avoid an overflow of the lock
tables. For master data, a lock table overflow may occur
for more than (roughly) 2000 cases.

Although direct input does not do any screen input, the
same routines are passed as BDC with (simulated) screen
input

Difference between Call screen, Leave screen and Set screen.

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