How Can You Check For A Records Existence Without Causing And I/o (ch

1.	How Can You Check For A Records Existence Without Causing And I/o (chain/read)?
Answer» With the help of File Information Data Structure, we can check EXISTENCE of RECORDS in a physical file. The code is described below: In File description CONTINUATION line (IPFK), KINFDS RCDS IRCDS DS I RECORD #RCDS with the above code we can check the existence of records in a file WITHOUT causing I/O operation. With the help of File Information Data Structure, we can check existence of records in a physical file. The code is described below: In File description continuation line (IPFK), KINFDS RCDS IRCDS DS I RECORD #RCDS with the above code we can check the existence of records in a file without causing I/O operation.

How Can You Check For A Records Existence Without Causing And I/o (chain/read)?

Answer»

With the help of File Information Data Structure, we can check EXISTENCE of RECORDS in a physical file. The code is described below: In File description CONTINUATION line (IPFK), KINFDS RCDS IRCDS DS I *RECORD #RCDS with the above code we can check the existence of records in a file WITHOUT causing I/O operation.

With the help of File Information Data Structure, we can check existence of records in a physical file. The code is described below: In File description continuation line (IPFK), KINFDS RCDS IRCDS DS I *RECORD #RCDS with the above code we can check the existence of records in a file without causing I/O operation.

Discussion

No Comment Found

Related InterviewSolutions

What Is The Purpose Of The "n" In The Following Calculation Specification?
How Can You Detect Overflow For A Print Program That Prints Multiple Lines Per Cycle?
How Can You Detect And Handle A Record Lock Situation?
When Would You Use Or Not Use This Approach?
Define The Purpose/use For Sflrna?
What Is The Difference Between Sflclr And Sflinz?
What Are The Different Types Of Variables Available In Cl?
Explain The Difference Between Defining Subfile And Message-subfile?
How To Toggle Between Single Line And Multi - Line Display Of A Particular Record In A Subfile?
What Is The Use Of Sflend Keyword?