COBOL Manual for TNS and TNS/R Programs

Procedure Division Verbs

HP COBOL Manual for TNS and TNS/R Programs—522555-006

9-37

CLOSE terminates processing of one or more open files or reels of tape. An optional

LOCK phrase prevents the program from reopening the file (unless the file is

dynamically assignable—see #DYNAMIC).

If a file is closed but not locked, the only I-O operation the process can perform on that

file is an open operation. If the file is closed and locked, the process cannot perform

any I-O operation on the file.

CLOSE has these formats:

•

CLOSE for Sequential and Line Sequential Files

•

CLOSE for Relative, Indexed, and Queue Files

CLOSE for Sequential and Line Sequential Files

Throughout this topic, “sequential file” means both sequential and line sequential files

unless otherwise noted.

file-name

is the name of the sequential file to be closed.

When more than one file-name appears, the files can have different

organization and access modes and the optional phrases following one file-

name are independent of those following any other file-name.

file-info

file-name

file-info

VST138.vsd

UNIT

REEL FOR REMOVAL

WITH LOCK

NO REWIND

VST139.vsd