ABAP Select data from SAP table BBP_MMD_AO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBP_MMD_AO
*  INTO TABLE @DATA(IT_BBP_MMD_AO2).
*--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_BBP_MMD_AO INDEX 1 INTO DATA(WA_BBP_MMD_AO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBP_MMD_AO>-KOSTL = 1.
<BBP_MMD_AO>-POSID = 1.
<BBP_MMD_AO>-AUFNR = 1.
<BBP_MMD_AO>-ANLN1 = 1.
<BBP_MMD_AO>-ANLN2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBP_MMD_AO-VBELN, sy-vline,
  WA_BBP_MMD_AO-VBELP, sy-vline,
  WA_BBP_MMD_AO-VETEN, sy-vline,
  WA_BBP_MMD_AO-NPLNR, sy-vline,
  WA_BBP_MMD_AO-VPROZ, sy-vline,
  WA_BBP_MMD_AO-EBELN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBP_MMD_AO 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_BBP_MMD_AO 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_BBP_MMD_AO INTO WA_BBP_MMD_AO.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBP_MMD_AO-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBP_MMD_AO-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_BBP_MMD_AO-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBP_MMD_AO-POSID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBP_MMD_AO-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBP_MMD_AO-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBP_MMD_AO-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBP_MMD_AO-ANLN2.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBP_MMD_AO-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBP_MMD_AO-LIFNR.
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_BBP_MMD_AO_STR, 
KOSTL TYPE STRING,
POSID TYPE STRING,
AUFNR TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
VBELN TYPE STRING,
VBELP TYPE STRING,
VETEN TYPE STRING,
NPLNR TYPE STRING,
VPROZ TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
SAKTO TYPE STRING,
WEMPF TYPE STRING,
ABLAD TYPE STRING,
LOEKZ TYPE STRING,
AEDAT TYPE STRING,
TXZ01 TYPE STRING,
MATNR TYPE STRING,
EMATN TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
MATKL TYPE STRING,
INFNR TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
BPRME TYPE STRING,
NETPR TYPE STRING,
PEINH TYPE STRING,
KNTTP TYPE STRING,
LABNR TYPE STRING,
KONNR TYPE STRING,
KTPNR TYPE STRING,
AFNAM TYPE STRING,
BSART TYPE STRING,
ERNAM TYPE STRING,
LIFNR TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
WAERS TYPE STRING,
BEDAT TYPE STRING,
VEND_NAME TYPE STRING,
DENIED TYPE STRING,
NETWR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBP_MMD_AO_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_BBP_MMD_AO_STR-KOSTL sy-vline 
WA_BBP_MMD_AO_STR-POSID sy-vline 
WA_BBP_MMD_AO_STR-AUFNR sy-vline 
WA_BBP_MMD_AO_STR-ANLN1 sy-vline 
WA_BBP_MMD_AO_STR-ANLN2 sy-vline 
WA_BBP_MMD_AO_STR-VBELN sy-vline 
WA_BBP_MMD_AO_STR-VBELP sy-vline 
WA_BBP_MMD_AO_STR-VETEN sy-vline 
WA_BBP_MMD_AO_STR-NPLNR sy-vline 
WA_BBP_MMD_AO_STR-VPROZ sy-vline 
WA_BBP_MMD_AO_STR-EBELN sy-vline 
WA_BBP_MMD_AO_STR-EBELP sy-vline 
WA_BBP_MMD_AO_STR-SAKTO sy-vline 
WA_BBP_MMD_AO_STR-WEMPF sy-vline 
WA_BBP_MMD_AO_STR-ABLAD sy-vline 
WA_BBP_MMD_AO_STR-LOEKZ sy-vline 
WA_BBP_MMD_AO_STR-AEDAT sy-vline 
WA_BBP_MMD_AO_STR-TXZ01 sy-vline 
WA_BBP_MMD_AO_STR-MATNR sy-vline 
WA_BBP_MMD_AO_STR-EMATN sy-vline 
WA_BBP_MMD_AO_STR-WERKS sy-vline 
WA_BBP_MMD_AO_STR-LGORT sy-vline 
WA_BBP_MMD_AO_STR-MATKL sy-vline 
WA_BBP_MMD_AO_STR-INFNR sy-vline 
WA_BBP_MMD_AO_STR-MENGE sy-vline 
WA_BBP_MMD_AO_STR-MEINS sy-vline 
WA_BBP_MMD_AO_STR-BPRME sy-vline 
WA_BBP_MMD_AO_STR-NETPR sy-vline 
WA_BBP_MMD_AO_STR-PEINH sy-vline 
WA_BBP_MMD_AO_STR-KNTTP sy-vline 
WA_BBP_MMD_AO_STR-LABNR sy-vline 
WA_BBP_MMD_AO_STR-KONNR sy-vline 
WA_BBP_MMD_AO_STR-KTPNR sy-vline 
WA_BBP_MMD_AO_STR-AFNAM sy-vline 
WA_BBP_MMD_AO_STR-BSART sy-vline 
WA_BBP_MMD_AO_STR-ERNAM sy-vline 
WA_BBP_MMD_AO_STR-LIFNR sy-vline 
WA_BBP_MMD_AO_STR-EKORG sy-vline 
WA_BBP_MMD_AO_STR-EKGRP sy-vline 
WA_BBP_MMD_AO_STR-WAERS sy-vline 
WA_BBP_MMD_AO_STR-BEDAT sy-vline 
WA_BBP_MMD_AO_STR-VEND_NAME sy-vline 
WA_BBP_MMD_AO_STR-DENIED sy-vline 
WA_BBP_MMD_AO_STR-NETWR sy-vline      INTO ld_text SEPARATED BY SPACE.

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