what is the use of UNIQUEUE KEY WORD?
what is the difference between PFILE AND REF?
Answer Posted / vp86
unique keyword is file level keyword you can use physical file as well as logical file also if you use the unique keyword then you prevent the duplicate value in particular filed and one more necessary condition file should be keyd.
pfile : That keyword is logical file keyword its record level keyword through we can create the logical file .
syntax for that keyword : pfile(physical file name).
ref: this keyword is file level keyword we can use only taking the field attribute reference .
syntax for that keyword :ref(lib/file/rcdname)
Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what is service program?
what is full form for dds?
What is the difference between iter and do? We know both are used to execute set of statements repeatedly, but what is the main difference?
where can you specify an indicator in lokup operation?
how do you use exceptional write in c specs?
why is the declare cursor statement is used for?
what are all the contents of subfile?
how to pick up the changed records every time in a subfile after the first change made ?
what the purpose of ovrdta, ovrata keywords?
which are the relational operators in rpg?
how to develop some simple graphs (bar charts) using just html?
How we will get issues on AS/400 technology ? I mean which issue/Defect Tracking tool is using in all companies when any issue comes? Can anybody explain about the work flow of AS/400 project ? plzzz
what is message file?
maximum number of subfiles that can be active for a single file is?
how do you know that records are locked?