i have 1000 records in pf.what are all the ways to read a
particular name records in rpg?? ie.. in pf i have a name
called demo appeared around 52 times hw will we read this
particular records in rpg/400?.
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Answer / deepak daswani
You can use READE opcode in dow while loop to read aal the
records of PF which is 'demo'.
Because everytime cursor reads the next value in the file.
| Is This Answer Correct ? | 13 Yes | 1 No |
What u can do is u can create a non join LF over the PF and
give the Select clause for that field like this:
S FLD1 COMP(EQ 'demo')
And now u can use this LF in your program.
| Is This Answer Correct ? | 11 Yes | 1 No |
Answer / swetha p rao
If the particular field value is demo , then you can do
onething to avoid reading the file unnecesarily
1. Declare a temporary file in user open mode and specify
as external mbr in F spec.
2. In CPYF there is an option to include records (INCREL )
based on selection, just copy all the records where the
field value is 'demo' in a temporary file with a create
file option. (using QCMDEXC)
3.Now the temporary file will have only demo records.Open
the file and read the records.
(or)
Using SQLRPGLE, write a query to select the records which
has field value 'demo'
Correct me if iam wrong
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / sudhir
to escape from creating a new object of LF(if its not a
permanent requirement) you can use OPNQRYF to select
whichever records you want like:
OPNQRYF FILE((FILENAME)) QRYSLT('(FIELDNAME *EQ "demo")')
hope you got your answer
| Is This Answer Correct ? | 5 Yes | 2 No |
Answer / swetha
that wud again create an object, What if the requirement
changes evrytume.then the LF wud not be useful
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / prasanna
In the RPG code, Move the value demo to the field and do a
reade on the file
| Is This Answer Correct ? | 2 Yes | 2 No |
Answer / jeganath
Go for ReadE i.e Read Equals,
give 'Demo' in Factor 1
'Demo' ReadE
it will fetch records equals 'Demo' string in the file, and
also it avoid unnecessary reading of other records, very
effective,
Note: it works only when that field is declared as key in
PF file
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / rajgoaj
Can it be done by using group function on a SQLRPG?
| Is This Answer Correct ? | 0 Yes | 2 No |
Answer / rajkalyanam
Say Physical file name is PF001 and Field name is NAME
and i want to select all records having their name as DEMO
then i will use SQLRPG,please correct me if i'm wrong
Select * from PF001 where name = 'DEMO'
| Is This Answer Correct ? | 0 Yes | 2 No |
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