Create dataset

Question

Hello folks,
I have a quick question:
I need to create a dataset file and save it on my desktop. Then read data from a table and store it in my dataset file.
How can I do this?
Please advise and rewards will be given appropriately.
Ol.

Answer 1

Hi,
Basic form
READ DATASET dsn INTO f.
Addition
... LENGTH len
Effect
Reads a record from the sequential file specified in dsn (a field or a literal) and stores it in the field f (usually a field string).
Binary mode (addition IN BINARY MODE in the OPEN DATASET statement:
Read from file in length of field f .
Text mode (addition IN TEXT MODE in the OPEN statement):
Read a line.
If the specified file is not open, READ DATASET attempts to open the file dsn ( IN BINARY MODE FOR INPUT or with the specifications of the last OPEN command for this file). Any errors result in the termination of the program.
To read all the records in a file, you are recommended to place READ DATASET in a DO loop that you leave with EXIT .
The return code value is set as follows:
SY-SUBRC = 0 Record read from file.
SY_SUBRC = 4 End of file reached.
Example
Define the field string REC :
DATA: BEGIN OF REC,
        TEXT(30),
        NUMBER TYPE I,
      END OF REC.
Read the file "/usr/test":
DO.
  READ DATASET '/usr/test' INTO REC.
  IF SY-SUBRC <> 0.
    EXIT.
  ENDIF.
  WRITE: / REC-TEXT, REC-NUMBER.
ENDDO.
Notes
You can use TRANSFER to output records to a sequential dataset.
The format of file names depends largely on the operating system. You can access portable programs by using the function module FILE_GET_NAME which returns the physical name for a given logical file name.
Addition
... LENGTH len
Effect
Stores the length of the record read from the file in the field len .
Pls reward all helpful points.
Regards,
Ameet