ABAP Select data from SAP table RKEA3_DYNPRO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RKEA3_DYNPRO 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 RKEA3_DYNPRO. 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 RKEA3_DYNPRO 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_RKEA3_DYNPRO TYPE STANDARD TABLE OF RKEA3_DYNPRO,
      WA_RKEA3_DYNPRO TYPE RKEA3_DYNPRO,
      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: <RKEA3_DYNPRO> TYPE RKEA3_DYNPRO.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RKEA3_DYNPRO.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RKEA3_DYNPRO
  INTO TABLE IT_RKEA3_DYNPRO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RKEA3_DYNPRO
*  INTO TABLE @DATA(IT_RKEA3_DYNPRO2).
*--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_RKEA3_DYNPRO INDEX 1 INTO DATA(WA_RKEA3_DYNPRO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RKEA3_DYNPRO ASSIGNING <RKEA3_DYNPRO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RKEA3_DYNPRO>-ERKRS = 1.
<RKEA3_DYNPRO>-ERKRS_BZ = 1.
<RKEA3_DYNPRO>-RERKRS = 1.
<RKEA3_DYNPRO>-STATUS = 1.
<RKEA3_DYNPRO>-STATUS_STRUC = 1.

ENDLOOP.

LOOP AT IT_RKEA3_DYNPRO INTO WA_RKEA3_DYNPRO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RKEA3_DYNPRO-STATUS_ENVIR, sy-vline,
  WA_RKEA3_DYNPRO-STATUS_ATTR, sy-vline,
  WA_RKEA3_DYNPRO-STATUS_CUST, sy-vline,
  WA_RKEA3_DYNPRO-PA_TYPE_1, sy-vline,
  WA_RKEA3_DYNPRO-PA_TYPE_2, sy-vline,
  WA_RKEA3_DYNPRO-PSL_SET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RKEA3_DYNPRO 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_RKEA3_DYNPRO 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_RKEA3_DYNPRO INTO WA_RKEA3_DYNPRO.


*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_RKEA3_DYNPRO_STR, 
ERKRS TYPE STRING,
ERKRS_BZ TYPE STRING,
RERKRS TYPE STRING,
STATUS TYPE STRING,
STATUS_STRUC TYPE STRING,
STATUS_ENVIR TYPE STRING,
STATUS_ATTR TYPE STRING,
STATUS_CUST TYPE STRING,
PA_TYPE_1 TYPE STRING,
PA_TYPE_2 TYPE STRING,
PSL_SET TYPE STRING,
SYSTP_SAP TYPE STRING,
SYSTP_CUS TYPE STRING,
BLOCKF TYPE STRING,
TAB1_TEXT TYPE STRING,
TAB2_TEXT TYPE STRING,
WAERS TYPE STRING,
PERIV TYPE STRING,
USEPER2I TYPE STRING,
USEPER2P TYPE STRING,
PERIV2 TYPE STRING,
PERFLAG2 TYPE STRING,
SUBSCREEN TYPE STRING,
OKCOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RKEA3_DYNPRO_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_RKEA3_DYNPRO_STR-ERKRS sy-vline 
WA_RKEA3_DYNPRO_STR-ERKRS_BZ sy-vline 
WA_RKEA3_DYNPRO_STR-RERKRS sy-vline 
WA_RKEA3_DYNPRO_STR-STATUS sy-vline 
WA_RKEA3_DYNPRO_STR-STATUS_STRUC sy-vline 
WA_RKEA3_DYNPRO_STR-STATUS_ENVIR sy-vline 
WA_RKEA3_DYNPRO_STR-STATUS_ATTR sy-vline 
WA_RKEA3_DYNPRO_STR-STATUS_CUST sy-vline 
WA_RKEA3_DYNPRO_STR-PA_TYPE_1 sy-vline 
WA_RKEA3_DYNPRO_STR-PA_TYPE_2 sy-vline 
WA_RKEA3_DYNPRO_STR-PSL_SET sy-vline 
WA_RKEA3_DYNPRO_STR-SYSTP_SAP sy-vline 
WA_RKEA3_DYNPRO_STR-SYSTP_CUS sy-vline 
WA_RKEA3_DYNPRO_STR-BLOCKF sy-vline 
WA_RKEA3_DYNPRO_STR-TAB1_TEXT sy-vline 
WA_RKEA3_DYNPRO_STR-TAB2_TEXT sy-vline 
WA_RKEA3_DYNPRO_STR-WAERS sy-vline 
WA_RKEA3_DYNPRO_STR-PERIV sy-vline 
WA_RKEA3_DYNPRO_STR-USEPER2I sy-vline 
WA_RKEA3_DYNPRO_STR-USEPER2P sy-vline 
WA_RKEA3_DYNPRO_STR-PERIV2 sy-vline 
WA_RKEA3_DYNPRO_STR-PERFLAG2 sy-vline 
WA_RKEA3_DYNPRO_STR-SUBSCREEN sy-vline 
WA_RKEA3_DYNPRO_STR-OKCOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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