ABAP Select data from SAP table CRAP_API06X into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRAP_API06X 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 CRAP_API06X. 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 CRAP_API06X 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_CRAP_API06X TYPE STANDARD TABLE OF CRAP_API06X,
      WA_CRAP_API06X TYPE CRAP_API06X,
      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: <CRAP_API06X> TYPE CRAP_API06X.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRAP_API06X.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRAP_API06X
  INTO TABLE IT_CRAP_API06X.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRAP_API06X
*  INTO TABLE @DATA(IT_CRAP_API06X2).
*--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_CRAP_API06X INDEX 1 INTO DATA(WA_CRAP_API06X2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRAP_API06X ASSIGNING <CRAP_API06X>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRAP_API06X>-CANUM = 1.
<CRAP_API06X>-VERSN = 1.
<CRAP_API06X>-DATUB = 1.
<CRAP_API06X>-TAGNR = 1.
<CRAP_API06X>-SCHNR = 1.

ENDLOOP.

LOOP AT IT_CRAP_API06X INTO WA_CRAP_API06X.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRAP_API06X-ANZHL, sy-vline,
  WA_CRAP_API06X-BEGZT, sy-vline,
  WA_CRAP_API06X-ENDZT, sy-vline,
  WA_CRAP_API06X-PAUSE, sy-vline,
  WA_CRAP_API06X-NGRAD, sy-vline,
  WA_CRAP_API06X-TPROG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRAP_API06X 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_CRAP_API06X 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_CRAP_API06X INTO WA_CRAP_API06X.


*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_CRAP_API06X_STR, 
CANUM TYPE STRING,
VERSN TYPE STRING,
DATUB TYPE STRING,
TAGNR TYPE STRING,
SCHNR TYPE STRING,
ANZHL TYPE STRING,
BEGZT TYPE STRING,
ENDZT TYPE STRING,
PAUSE TYPE STRING,
NGRAD TYPE STRING,
TPROG TYPE STRING,
CHANGE_FLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRAP_API06X_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_CRAP_API06X_STR-CANUM sy-vline 
WA_CRAP_API06X_STR-VERSN sy-vline 
WA_CRAP_API06X_STR-DATUB sy-vline 
WA_CRAP_API06X_STR-TAGNR sy-vline 
WA_CRAP_API06X_STR-SCHNR sy-vline 
WA_CRAP_API06X_STR-ANZHL sy-vline 
WA_CRAP_API06X_STR-BEGZT sy-vline 
WA_CRAP_API06X_STR-ENDZT sy-vline 
WA_CRAP_API06X_STR-PAUSE sy-vline 
WA_CRAP_API06X_STR-NGRAD sy-vline 
WA_CRAP_API06X_STR-TPROG sy-vline 
WA_CRAP_API06X_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.