ABAP Select data from SAP table BBPS_GEN_DIFF_CNTL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBPS_GEN_DIFF_CNTL
*  INTO TABLE @DATA(IT_BBPS_GEN_DIFF_CNTL2).
*--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_BBPS_GEN_DIFF_CNTL INDEX 1 INTO DATA(WA_BBPS_GEN_DIFF_CNTL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBPS_GEN_DIFF_CNTL>-BASIC_DATA = 1.
<BBPS_GEN_DIFF_CNTL>-PARTNERS = 1.
<BBPS_GEN_DIFF_CNTL>-ORGDATA = 1.
<BBPS_GEN_DIFF_CNTL>-ATTACHMENTS = 1.
<BBPS_GEN_DIFF_CNTL>-ACCOUNTING = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBPS_GEN_DIFF_CNTL-LIMITS, sy-vline,
  WA_BBPS_GEN_DIFF_CNTL-TAX, sy-vline,
  WA_BBPS_GEN_DIFF_CNTL-LONGTEXTS, sy-vline,
  WA_BBPS_GEN_DIFF_CNTL-DOCS, sy-vline,
  WA_BBPS_GEN_DIFF_CNTL-HCF, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_BBPS_GEN_DIFF_CNTL 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_BBPS_GEN_DIFF_CNTL 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_BBPS_GEN_DIFF_CNTL INTO WA_BBPS_GEN_DIFF_CNTL.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_BBPS_GEN_DIFF_CNTL_STR, 
BASIC_DATA TYPE STRING,
PARTNERS TYPE STRING,
ORGDATA TYPE STRING,
ATTACHMENTS TYPE STRING,
ACCOUNTING TYPE STRING,
LIMITS TYPE STRING,
TAX TYPE STRING,
LONGTEXTS TYPE STRING,
DOCS TYPE STRING,
HCF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBPS_GEN_DIFF_CNTL_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_BBPS_GEN_DIFF_CNTL_STR-BASIC_DATA sy-vline 
WA_BBPS_GEN_DIFF_CNTL_STR-PARTNERS sy-vline 
WA_BBPS_GEN_DIFF_CNTL_STR-ORGDATA sy-vline 
WA_BBPS_GEN_DIFF_CNTL_STR-ATTACHMENTS sy-vline 
WA_BBPS_GEN_DIFF_CNTL_STR-ACCOUNTING sy-vline 
WA_BBPS_GEN_DIFF_CNTL_STR-LIMITS sy-vline 
WA_BBPS_GEN_DIFF_CNTL_STR-TAX sy-vline 
WA_BBPS_GEN_DIFF_CNTL_STR-LONGTEXTS sy-vline 
WA_BBPS_GEN_DIFF_CNTL_STR-DOCS sy-vline 
WA_BBPS_GEN_DIFF_CNTL_STR-HCF sy-vline      INTO ld_text SEPARATED BY SPACE.

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