ABAP Select data from SAP table DDTBIXCHK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DDTBIXCHK
*  INTO TABLE @DATA(IT_DDTBIXCHK2).
*--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_DDTBIXCHK INDEX 1 INTO DATA(WA_DDTBIXCHK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DDTBIXCHK>-NAMECHK = 1.
<DDTBIXCHK>-NTACTIVE_A = 1.
<DDTBIXCHK>-NTACTIVE_M = 1.
<DDTBIXCHK>-BTTRANSP = 1.
<DDTBIXCHK>-MAXFLDCNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DDTBIXCHK-MAXFLDLEN, sy-vline,
  WA_DDTBIXCHK-DUPFIELDS, sy-vline,
  WA_DDTBIXCHK-NOFIELDS, sy-vline,
  WA_DDTBIXCHK-EXIFIELD, sy-vline,
  WA_DDTBIXCHK-MANDTFLD, sy-vline,
  WA_DDTBIXCHK-SAMESEQU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DDTBIXCHK 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_DDTBIXCHK 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_DDTBIXCHK INTO WA_DDTBIXCHK.


*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_DDTBIXCHK_STR, 
NAMECHK TYPE STRING,
NTACTIVE_A TYPE STRING,
NTACTIVE_M TYPE STRING,
BTTRANSP TYPE STRING,
MAXFLDCNT TYPE STRING,
MAXFLDLEN TYPE STRING,
DUPFIELDS TYPE STRING,
NOFIELDS TYPE STRING,
EXIFIELD TYPE STRING,
MANDTFLD TYPE STRING,
SAMESEQU TYPE STRING,
CONTSEQU TYPE STRING,
MAXINDXCNT TYPE STRING,
PUTREPLACE TYPE STRING,
DBACTCNV TYPE STRING,
DBACTCRE TYPE STRING,
DBACTDEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DDTBIXCHK_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_DDTBIXCHK_STR-NAMECHK sy-vline 
WA_DDTBIXCHK_STR-NTACTIVE_A sy-vline 
WA_DDTBIXCHK_STR-NTACTIVE_M sy-vline 
WA_DDTBIXCHK_STR-BTTRANSP sy-vline 
WA_DDTBIXCHK_STR-MAXFLDCNT sy-vline 
WA_DDTBIXCHK_STR-MAXFLDLEN sy-vline 
WA_DDTBIXCHK_STR-DUPFIELDS sy-vline 
WA_DDTBIXCHK_STR-NOFIELDS sy-vline 
WA_DDTBIXCHK_STR-EXIFIELD sy-vline 
WA_DDTBIXCHK_STR-MANDTFLD sy-vline 
WA_DDTBIXCHK_STR-SAMESEQU sy-vline 
WA_DDTBIXCHK_STR-CONTSEQU sy-vline 
WA_DDTBIXCHK_STR-MAXINDXCNT sy-vline 
WA_DDTBIXCHK_STR-PUTREPLACE sy-vline 
WA_DDTBIXCHK_STR-DBACTCNV sy-vline 
WA_DDTBIXCHK_STR-DBACTCRE sy-vline 
WA_DDTBIXCHK_STR-DBACTDEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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