What Happens When You Open An Empty Vsam File In A Cobol Program For

1.	What Happens When You Open An Empty Vsam File In A Cobol Program For Input?
Answer» A VSAM file that has NEVER contained a record is treated as UNAVAILABLE. Attempting to open for input will fail. An empty file can be OPENED for output only. When you open for output, COBOL will WRITE a dummy record to the file & then delete it out. A VSAM file that has never contained a record is treated as unavailable. Attempting to open for input will fail. An empty file can be opened for output only. When you open for output, COBOL will write a dummy record to the file & then delete it out.

What Happens When You Open An Empty Vsam File In A Cobol Program For Input?

Answer»

A VSAM file that has NEVER contained a record is treated as UNAVAILABLE. Attempting to open for input will fail. An empty file can be OPENED for output only. When you open for output, COBOL will WRITE a dummy record to the file & then delete it out.

A VSAM file that has never contained a record is treated as unavailable. Attempting to open for input will fail. An empty file can be opened for output only. When you open for output, COBOL will write a dummy record to the file & then delete it out.

Discussion

No Comment Found

Related InterviewSolutions

What Is The Purpose Of The Verify Function Of Idcams?
What Are The Idcams Commands That Can Be Used For Vsam And Explain Each Of Them.
What Is Meant By Dirty Read In Vsam?
Difference Between Vsam And Database Tables
Explain The Differences Between Vsam And Non-vsam Files
Explain The Information Contained In Ci
How Did You Refresh A Vsam File And How Frequently You Do It ?
How Do You Convert Flat Files To Vsam Files?
We Can Define The Ksds Cluster By Two Ways By Using The File-aid Or By Using The Idcams Utility. Explain Them.
How Do You Define An Altindx ? How Do You Use Altindxs In Batch, Cics Programs?