For sequential access mode, the file should remain open in Output mode or Extend mode to write a record in a file.Write statement is used with the FROM option to directly write records from the working storage variables.This verb is used when a file is opened in OUTPUT or EXTEND mode. Write verb is used to insert the records in a file.Here we assume that, input file data available in the info.txt file and it contains following data:Īfter compilation and execution of the above example, it generates the following output: The file pointer is incremented at each read statement, hence the consecutive records are read.Įxample : Read an existing file using sequential organization.The file should be open in INPUT or I-O mode for performing read operation.Only one record is read into the file structure at each read verb. Read Verb is used to read the file records.I-O – Input-Output mode provides read and rewrite the record of a file. This mode cannot be used when the file access mode is Random or Dynamic.Ĥ. Extend – To append records in a sequential file extend mode is used, i.e records are inserted at the end. Output – File is used only for writing, i.e to insert a record in the file.ģ. Input – This mode is used for existing files. In above syntax, file-name is string literal use as a file name.ġ. In open verb, FILE-STATUS variable is updated after each file operation.The variables in the file structure are available for processing only after opening a file.Without opening a file it is not possible to perform any processing operations like read, write or re-write etc. Open Verb is the beginning operation of a file.File handling Verbs Different file handling verbs are: IntroductionFile handling verbs are used to perform different operations on files.

Read in cobol