ABAP Select data from SAP table CBUFLVLDMDAFTP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CBUFLVLDMDAFTP table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to CBUFLVLDMDAFTP. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the CBUFLVLDMDAFTP table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_CBUFLVLDMDAFTP TYPE STANDARD TABLE OF CBUFLVLDMDAFTP,
      WA_CBUFLVLDMDAFTP TYPE CBUFLVLDMDAFTP,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <CBUFLVLDMDAFTP> TYPE CBUFLVLDMDAFTP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CBUFLVLDMDAFTP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CBUFLVLDMDAFTP
  INTO TABLE IT_CBUFLVLDMDAFTP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CBUFLVLDMDAFTP
*  INTO TABLE @DATA(IT_CBUFLVLDMDAFTP2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_CBUFLVLDMDAFTP INDEX 1 INTO DATA(WA_CBUFLVLDMDAFTP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CBUFLVLDMDAFTP ASSIGNING <CBUFLVLDMDAFTP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CBUFLVLDMDAFTP>-MANDT = 1.
<CBUFLVLDMDAFTP>-MATERIAL = 1.
<CBUFLVLDMDAFTP>-PLANT = 1.
<CBUFLVLDMDAFTP>-MRPAREA = 1.
<CBUFLVLDMDAFTP>-PROPOSALSTARTDATE = 1.

ENDLOOP.

LOOP AT IT_CBUFLVLDMDAFTP INTO WA_CBUFLVLDMDAFTP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CBUFLVLDMDAFTP-PROPOSALVERSION, sy-vline,
  WA_CBUFLVLDMDAFTP-PROPOSALDMNDADJMTFCTRSTARTDATE, sy-vline,
  WA_CBUFLVLDMDAFTP-PRPSLDMNDADJMTFCTRSTRTDTEEDIT, sy-vline,
  WA_CBUFLVLDMDAFTP-PROPOSALDMNDADJMTFCTRENDDATE, sy-vline,
  WA_CBUFLVLDMDAFTP-DEMANDADJUSTMENTFACTOR, sy-vline,
  WA_CBUFLVLDMDAFTP-AVERAGEDAILYUSAGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CBUFLVLDMDAFTP you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_CBUFLVLDMDAFTP TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_CBUFLVLDMDAFTP INTO WA_CBUFLVLDMDAFTP.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CBUFLVLDMDAFTP-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBUFLVLDMDAFTP-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field AVGDAILYUSAGEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CBUFLVLDMDAFTP-AVGDAILYUSAGEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBUFLVLDMDAFTP-AVGDAILYUSAGEUNIT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CBUFLVLDMDAFTP_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
PROPOSALSTARTDATE TYPE STRING,
PROPOSALVERSION TYPE STRING,
PROPOSALDMNDADJMTFCTRSTARTDATE TYPE STRING,
PRPSLDMNDADJMTFCTRSTRTDTEEDIT TYPE STRING,
PROPOSALDMNDADJMTFCTRENDDATE TYPE STRING,
DEMANDADJUSTMENTFACTOR TYPE STRING,
AVERAGEDAILYUSAGE TYPE STRING,
AVGDAILYUSAGEUNIT TYPE STRING,
ADJUSTEDAVERAGEDAILYUSAGE TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
PRODUCTAUTHORIZATIONGROUP TYPE STRING,
PRODUCTTYPEAUTHORIZATIONGROUP TYPE STRING,
PRODUCTGROUPAUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CBUFLVLDMDAFTP_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_CBUFLVLDMDAFTP_STR-MANDT sy-vline 
WA_CBUFLVLDMDAFTP_STR-MATERIAL sy-vline 
WA_CBUFLVLDMDAFTP_STR-PLANT sy-vline 
WA_CBUFLVLDMDAFTP_STR-MRPAREA sy-vline 
WA_CBUFLVLDMDAFTP_STR-PROPOSALSTARTDATE sy-vline 
WA_CBUFLVLDMDAFTP_STR-PROPOSALVERSION sy-vline 
WA_CBUFLVLDMDAFTP_STR-PROPOSALDMNDADJMTFCTRSTARTDATE sy-vline 
WA_CBUFLVLDMDAFTP_STR-PRPSLDMNDADJMTFCTRSTRTDTEEDIT sy-vline 
WA_CBUFLVLDMDAFTP_STR-PROPOSALDMNDADJMTFCTRENDDATE sy-vline 
WA_CBUFLVLDMDAFTP_STR-DEMANDADJUSTMENTFACTOR sy-vline 
WA_CBUFLVLDMDAFTP_STR-AVERAGEDAILYUSAGE sy-vline 
WA_CBUFLVLDMDAFTP_STR-AVGDAILYUSAGEUNIT sy-vline 
WA_CBUFLVLDMDAFTP_STR-ADJUSTEDAVERAGEDAILYUSAGE sy-vline 
WA_CBUFLVLDMDAFTP_STR-CREATEDBYUSER sy-vline 
WA_CBUFLVLDMDAFTP_STR-LASTCHANGEDBYUSER sy-vline 
WA_CBUFLVLDMDAFTP_STR-PRODUCTAUTHORIZATIONGROUP sy-vline 
WA_CBUFLVLDMDAFTP_STR-PRODUCTTYPEAUTHORIZATIONGROUP sy-vline 
WA_CBUFLVLDMDAFTP_STR-PRODUCTGROUPAUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.