Occur
The OCCUR operation establishes which occurrence of a multiple occurrence data structure is used...
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On-Error
ON-ERROR follows the MONITOR opcode which is used for trapping errors. Example Program HOPTION(*SRCSTMT)...
Opcode Extender for File Operations
We have an‘N’ opcode extender that is used to make the record not locked...
Open
The OPEN opcode is used to explicitly open a file. Program dcl-f emphdr disk...
Other
If all when statement is not true, then it gets executed. Program Dcl-s S...
Parm
This opcode is used to define PLIST parameter fields. Program D xDsply s 50...
Plist
It is used to define a list of parameter that will be used for...
Read
Read operation reads the records of a full procedural file. First of all, it...
Reade
READE reads the matching record for factor-1 and moves the pointer to the next...