How can we override a file during runtime in rpg?
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Q:Hi all,i want accurate answer with code using in built functions.please sent me code as soon as posible. I have program nmed PGM1 which '' RETRIEVE Current production date''should correctly default the production date for the user who is issuing raw materials to the manufacturing.The production date can be different from the celendra date. However, the program does not make the correct adjustment for all manufacturing plants. there is a parameter which determines the production start time e.g. 07:00 if the system time precedes this,the program subtracts one from the celendra day.This work fine when the celendar day starts after production day as it does in England,the system should be adding one to the celendar day during the overlap. unfortunately the program was desined to assumed the celendar day always starts before the production day. Change required in the program: Change the PROGRAM PGM1 to use the new parrameter to decide whether to add or subtract 1 from the celendar day when determining the production date.
during execution, an rpg/400 program automatically follows a sequence of operations for each record that is processed. The built-in program cycle includes the following logical steps.
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This is my Physical file 'EMPS' existing in library "TAMIL1" and its record format is 'EMPRCD" a)its source is R EMPRCD ENO 4 0 ENAME 10 EADD 10 b)The records present in EMPS are as follows ENO ENAME EADD 0001 tamil coimbatore 0002 kumar bangalore 0003 sunder bangalore 0004 arunkumar chennai 0005 pandi hyderabad 0006 santhosh hyderabad 0007 sasi salem 0008 kalai chennai 0009 suresh hyderabad 0010 vijay bangalore 0011 Arul chennai 0012 velu chennai 0013 khan bangalore 0014 praba chennai 0015 praba.p coimbatore 0016 anand ooty 0017 raja erode 0018 sankar erode 0019 vadivel namakkal 0020 anbu chennai 0021 Ajith mumabi c)now i want to select the 'ENAME' field records starting with 'S' for that i have created a RPG program its source code is PGM DCLF FILE(TAMIL1/EMPS) DCL VAR(&MYENO) TYPE(*CHAR) LEN(4) OVRDBF FILE(EMPS) SHARE(*YES) OPNQRYF FILE((TAMIL1/EMPS)) QRYSLT('ENAME *EQ %WLDCRD("S *")') READ: RCVF RCDFMT(EMPRCD) MONMSG MSGID(CPF0864) EXEC(GOTO CMDLBL(END)) CHGVAR VAR(&MYENO) VALUE(&ENO) SNDUSRMSG MSG(&MYENO) SNDUSRMSG MSG(&ENAME) SNDUSRMSG MSG(&EADD) GOTO READ END: CLOF OPNID(EMPS) DLTOVR FILE(EMPS) ENDPGM Is this coding correct sir,the program gets compiled,and if i call it it says query running but records are not displayed.please help me out
what is the procedure and explain about real time scenario.
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If the last record of a file has been read, and the next operation on that file is a READ operation, what will be the values of the input fields for that file? A. They will be blank and/or zero. B. They will be null. C. They will equal the values of the first record in the file. D. They will equal the values of the last record read.
RPG400 
