ABAP Select data from SAP table JBD_CFM_WFF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP JBD_CFM_WFF 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 JBD_CFM_WFF. 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 JBD_CFM_WFF 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_JBD_CFM_WFF TYPE STANDARD TABLE OF JBD_CFM_WFF,
      WA_JBD_CFM_WFF TYPE JBD_CFM_WFF,
      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: <JBD_CFM_WFF> TYPE JBD_CFM_WFF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBD_CFM_WFF
*  INTO TABLE @DATA(IT_JBD_CFM_WFF2).
*--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_JBD_CFM_WFF INDEX 1 INTO DATA(WA_JBD_CFM_WFF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBD_CFM_WFF>-BUKRS = 1.
<JBD_CFM_WFF>-OBJNR = 1.
<JBD_CFM_WFF>-RANLW = 1.
<JBD_CFM_WFF>-RHANPL = 1.
<JBD_CFM_WFF>-OPTNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBD_CFM_WFF-RLDEPO, sy-vline,
  WA_JBD_CFM_WFF-SSHLNG, sy-vline,
  WA_JBD_CFM_WFF-BDSVOL, sy-vline,
  WA_JBD_CFM_WFF-BZINBE, sy-vline,
  WA_JBD_CFM_WFF-BMARBW, sy-vline,
  WA_JBD_CFM_WFF-BABRBW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBD_CFM_WFF 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_JBD_CFM_WFF 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_JBD_CFM_WFF INTO WA_JBD_CFM_WFF.


*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 ALPHA, internal->external for field RANLW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JBD_CFM_WFF-RANLW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBD_CFM_WFF-RANLW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OPTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JBD_CFM_WFF-OPTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBD_CFM_WFF-OPTNR.
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_JBD_CFM_WFF_STR, 
BUKRS TYPE STRING,
OBJNR TYPE STRING,
RANLW TYPE STRING,
RHANPL TYPE STRING,
OPTNR TYPE STRING,
RLDEPO TYPE STRING,
SSHLNG TYPE STRING,
BDSVOL TYPE STRING,
BZINBE TYPE STRING,
BMARBW TYPE STRING,
BABRBW TYPE STRING,
BDIFBW TYPE STRING,
BWTBBW TYPE STRING,
BDSKBW TYPE STRING,
BMKVOL TYPE STRING,
BMKVLD TYPE STRING,
BOPVOL TYPE STRING,
BVERKM TYPE STRING,
BKAUFM TYPE STRING,
BRKUGW TYPE STRING,
BRKDGW TYPE STRING,
BRKUVL TYPE STRING,
BRKDVL TYPE STRING,
BHKOBE TYPE STRING,
AGESCH TYPE STRING,
BERTRZ TYPE STRING,
BZINAG TYPE STRING,
BOPPAG TYPE STRING,
BOPPAH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBD_CFM_WFF_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_JBD_CFM_WFF_STR-BUKRS sy-vline 
WA_JBD_CFM_WFF_STR-OBJNR sy-vline 
WA_JBD_CFM_WFF_STR-RANLW sy-vline 
WA_JBD_CFM_WFF_STR-RHANPL sy-vline 
WA_JBD_CFM_WFF_STR-OPTNR sy-vline 
WA_JBD_CFM_WFF_STR-RLDEPO sy-vline 
WA_JBD_CFM_WFF_STR-SSHLNG sy-vline 
WA_JBD_CFM_WFF_STR-BDSVOL sy-vline 
WA_JBD_CFM_WFF_STR-BZINBE sy-vline 
WA_JBD_CFM_WFF_STR-BMARBW sy-vline 
WA_JBD_CFM_WFF_STR-BABRBW sy-vline 
WA_JBD_CFM_WFF_STR-BDIFBW sy-vline 
WA_JBD_CFM_WFF_STR-BWTBBW sy-vline 
WA_JBD_CFM_WFF_STR-BDSKBW sy-vline 
WA_JBD_CFM_WFF_STR-BMKVOL sy-vline 
WA_JBD_CFM_WFF_STR-BMKVLD sy-vline 
WA_JBD_CFM_WFF_STR-BOPVOL sy-vline 
WA_JBD_CFM_WFF_STR-BVERKM sy-vline 
WA_JBD_CFM_WFF_STR-BKAUFM sy-vline 
WA_JBD_CFM_WFF_STR-BRKUGW sy-vline 
WA_JBD_CFM_WFF_STR-BRKDGW sy-vline 
WA_JBD_CFM_WFF_STR-BRKUVL sy-vline 
WA_JBD_CFM_WFF_STR-BRKDVL sy-vline 
WA_JBD_CFM_WFF_STR-BHKOBE sy-vline 
WA_JBD_CFM_WFF_STR-AGESCH sy-vline 
WA_JBD_CFM_WFF_STR-BERTRZ sy-vline 
WA_JBD_CFM_WFF_STR-BZINAG sy-vline 
WA_JBD_CFM_WFF_STR-BOPPAG sy-vline 
WA_JBD_CFM_WFF_STR-BOPPAH sy-vline      INTO ld_text SEPARATED BY SPACE.

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