Valid COBOL statements for line-sequential files
The following table shows the possible combinations of input-output statements for line-sequential files. 'X' indicates that the statement can be used with the open mode shown at the top of the column.
Access mode | COBOL statement | OPEN INPUT | OPEN OUTPUT | OPEN I-O | OPEN EXTEND |
---|---|---|---|---|---|
Sequential | OPEN |
X | X | X | |
WRITE |
X | X | |||
START |
|||||
READ |
X | ||||
REWRITE |
|||||
DELETE |
|||||
CLOSE |
X | X | X |