ABAP Select data from SAP table PMXGEN_S_EEDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMXGEN_S_EEDATA
*  INTO TABLE @DATA(IT_PMXGEN_S_EEDATA2).
*--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_PMXGEN_S_EEDATA INDEX 1 INTO DATA(WA_PMXGEN_S_EEDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMXGEN_S_EEDATA>-PERNR = 1.
<PMXGEN_S_EEDATA>-INDAT = 1.
<PMXGEN_S_EEDATA>-NACHN = 1.
<PMXGEN_S_EEDATA>-NACH2 = 1.
<PMXGEN_S_EEDATA>-VORNA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMXGEN_S_EEDATA-ENAME, sy-vline,
  WA_PMXGEN_S_EEDATA-ABKRS, sy-vline,
  WA_PMXGEN_S_EEDATA-BUKRS, sy-vline,
  WA_PMXGEN_S_EEDATA-KOSTL, sy-vline,
  WA_PMXGEN_S_EEDATA-WERKS, sy-vline,
  WA_PMXGEN_S_EEDATA-BTRTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMXGEN_S_EEDATA 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_PMXGEN_S_EEDATA 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_PMXGEN_S_EEDATA INTO WA_PMXGEN_S_EEDATA.


*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.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMXGEN_S_EEDATA-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMXGEN_S_EEDATA-KOSTL.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_PMXGEN_S_EEDATA_STR, 
PERNR TYPE STRING,
INDAT TYPE STRING,
NACHN TYPE STRING,
NACH2 TYPE STRING,
VORNA TYPE STRING,
ENAME TYPE STRING,
ABKRS TYPE STRING,
BUKRS TYPE STRING,
KOSTL TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
JUPER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMXGEN_S_EEDATA_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_PMXGEN_S_EEDATA_STR-PERNR sy-vline 
WA_PMXGEN_S_EEDATA_STR-INDAT sy-vline 
WA_PMXGEN_S_EEDATA_STR-NACHN sy-vline 
WA_PMXGEN_S_EEDATA_STR-NACH2 sy-vline 
WA_PMXGEN_S_EEDATA_STR-VORNA sy-vline 
WA_PMXGEN_S_EEDATA_STR-ENAME sy-vline 
WA_PMXGEN_S_EEDATA_STR-ABKRS sy-vline 
WA_PMXGEN_S_EEDATA_STR-BUKRS sy-vline 
WA_PMXGEN_S_EEDATA_STR-KOSTL sy-vline 
WA_PMXGEN_S_EEDATA_STR-WERKS sy-vline 
WA_PMXGEN_S_EEDATA_STR-BTRTL sy-vline 
WA_PMXGEN_S_EEDATA_STR-PERSG sy-vline 
WA_PMXGEN_S_EEDATA_STR-PERSK sy-vline 
WA_PMXGEN_S_EEDATA_STR-JUPER sy-vline      INTO ld_text SEPARATED BY SPACE.

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