ABAP Select data from SAP table CRHD_API05X into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRHD_API05X 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 CRHD_API05X. 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 CRHD_API05X 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_CRHD_API05X TYPE STANDARD TABLE OF CRHD_API05X,
      WA_CRHD_API05X TYPE CRHD_API05X,
      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: <CRHD_API05X> TYPE CRHD_API05X.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRHD_API05X.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRHD_API05X
  INTO TABLE IT_CRHD_API05X.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRHD_API05X
*  INTO TABLE @DATA(IT_CRHD_API05X2).
*--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_CRHD_API05X INDEX 1 INTO DATA(WA_CRHD_API05X2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRHD_API05X ASSIGNING <CRHD_API05X>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRHD_API05X>-KAPART = 1.
<CRHD_API05X>-KAPNAME = 1.
<CRHD_API05X>-FORT1 = 1.
<CRHD_API05X>-FORT2 = 1.
<CRHD_API05X>-FORT3 = 1.

ENDLOOP.

LOOP AT IT_CRHD_API05X INTO WA_CRHD_API05X.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRHD_API05X-FORTN, sy-vline,
  WA_CRHD_API05X-ORTGR, sy-vline,
  WA_CRHD_API05X-VGDIM, sy-vline,
  WA_CRHD_API05X-VGARB, sy-vline,
  WA_CRHD_API05X-ZEIWN, sy-vline,
  WA_CRHD_API05X-ZWNOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRHD_API05X 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_CRHD_API05X 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_CRHD_API05X INTO WA_CRHD_API05X.


*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_CRHD_API05X_STR, 
KAPART TYPE STRING,
KAPNAME TYPE STRING,
FORT1 TYPE STRING,
FORT2 TYPE STRING,
FORT3 TYPE STRING,
FORTN TYPE STRING,
ORTGR TYPE STRING,
VGDIM TYPE STRING,
VGARB TYPE STRING,
ZEIWN TYPE STRING,
ZWNOR TYPE STRING,
ZEIWM TYPE STRING,
ZWMIN TYPE STRING,
CHANGE_FLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRHD_API05X_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_CRHD_API05X_STR-KAPART sy-vline 
WA_CRHD_API05X_STR-KAPNAME sy-vline 
WA_CRHD_API05X_STR-FORT1 sy-vline 
WA_CRHD_API05X_STR-FORT2 sy-vline 
WA_CRHD_API05X_STR-FORT3 sy-vline 
WA_CRHD_API05X_STR-FORTN sy-vline 
WA_CRHD_API05X_STR-ORTGR sy-vline 
WA_CRHD_API05X_STR-VGDIM sy-vline 
WA_CRHD_API05X_STR-VGARB sy-vline 
WA_CRHD_API05X_STR-ZEIWN sy-vline 
WA_CRHD_API05X_STR-ZWNOR sy-vline 
WA_CRHD_API05X_STR-ZEIWM sy-vline 
WA_CRHD_API05X_STR-ZWMIN sy-vline 
WA_CRHD_API05X_STR-CHANGE_FLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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