ABAP Select data from SAP table SCBP_MALLOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SCBP_MALLOC
*  INTO TABLE @DATA(IT_SCBP_MALLOC2).
*--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_SCBP_MALLOC INDEX 1 INTO DATA(WA_SCBP_MALLOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SCBP_MALLOC>-WENUX = 1.
<SCBP_MALLOC>-PMNUX = 1.
<SCBP_MALLOC>-VSNDA = 1.
<SCBP_MALLOC>-PERID = 1.
<SCBP_MALLOC>-PERKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SCBP_MALLOC-PERIV, sy-vline,
  WA_SCBP_MALLOC-ERTAG, sy-vline,
  WA_SCBP_MALLOC-LETAG, sy-vline,
  WA_SCBP_MALLOC-ATAGE, sy-vline,
  WA_SCBP_MALLOC-MALLOC, sy-vline,
  WA_SCBP_MALLOC-PMNUX_EXTERNAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SCBP_MALLOC 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_SCBP_MALLOC 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_SCBP_MALLOC INTO WA_SCBP_MALLOC.


*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 PMNUX
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_SCBP_MALLOC-PMNUX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SCBP_MALLOC-PMNUX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATNL, internal->external for field PMNUX_EXTERNAL
CALL FUNCTION 'CONVERSION_EXIT_MATNL_OUTPUT'
  EXPORTING
    input =                      WA_SCBP_MALLOC-PMNUX_EXTERNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SCBP_MALLOC-PMNUX_EXTERNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATNW, internal->external for field PMNUX_VERSION
CALL FUNCTION 'CONVERSION_EXIT_MATNW_OUTPUT'
  EXPORTING
    input =                      WA_SCBP_MALLOC-PMNUX_VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SCBP_MALLOC-PMNUX_VERSION.
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_SCBP_MALLOC_STR, 
WENUX TYPE STRING,
PMNUX TYPE STRING,
VSNDA TYPE STRING,
PERID TYPE STRING,
PERKZ TYPE STRING,
PERIV TYPE STRING,
ERTAG TYPE STRING,
LETAG TYPE STRING,
ATAGE TYPE STRING,
MALLOC TYPE STRING,
PMNUX_EXTERNAL TYPE STRING,
PMNUX_GUID TYPE STRING,
PMNUX_VERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SCBP_MALLOC_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_SCBP_MALLOC_STR-WENUX sy-vline 
WA_SCBP_MALLOC_STR-PMNUX sy-vline 
WA_SCBP_MALLOC_STR-VSNDA sy-vline 
WA_SCBP_MALLOC_STR-PERID sy-vline 
WA_SCBP_MALLOC_STR-PERKZ sy-vline 
WA_SCBP_MALLOC_STR-PERIV sy-vline 
WA_SCBP_MALLOC_STR-ERTAG sy-vline 
WA_SCBP_MALLOC_STR-LETAG sy-vline 
WA_SCBP_MALLOC_STR-ATAGE sy-vline 
WA_SCBP_MALLOC_STR-MALLOC sy-vline 
WA_SCBP_MALLOC_STR-PMNUX_EXTERNAL sy-vline 
WA_SCBP_MALLOC_STR-PMNUX_GUID sy-vline 
WA_SCBP_MALLOC_STR-PMNUX_VERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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