ABAP Select data from SAP table EWAROUTE_MAIN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWAROUTE_MAIN
*  INTO TABLE @DATA(IT_EWAROUTE_MAIN2).
*--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_EWAROUTE_MAIN INDEX 1 INTO DATA(WA_EWAROUTE_MAIN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWAROUTE_MAIN>-ROUTE_TXT = 1.
<EWAROUTE_MAIN>-STICHTAG = 1.
<EWAROUTE_MAIN>-WASTE_TYPE1 = 1.
<EWAROUTE_MAIN>-PRODUCT_AREA1 = 1.
<EWAROUTE_MAIN>-RESULTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWAROUTE_MAIN-PRODUCT_AREA2, sy-vline,
  WA_EWAROUTE_MAIN-RESULTYP2, sy-vline,
  WA_EWAROUTE_MAIN-PRODUCT_AREA3, sy-vline,
  WA_EWAROUTE_MAIN-RESULTYP3, sy-vline,
  WA_EWAROUTE_MAIN-FLEET_CAT, sy-vline,
  WA_EWAROUTE_MAIN-CAL_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWAROUTE_MAIN 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_EWAROUTE_MAIN 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_EWAROUTE_MAIN INTO WA_EWAROUTE_MAIN.


*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 MATN1, internal->external for field WASTE_TYPE1
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EWAROUTE_MAIN-WASTE_TYPE1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAROUTE_MAIN-WASTE_TYPE1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOL_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAROUTE_MAIN-VOL_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAROUTE_MAIN-VOL_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEIZT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAROUTE_MAIN-MEIZT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAROUTE_MAIN-MEIZT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEDST
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAROUTE_MAIN-MEDST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAROUTE_MAIN-MEDST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WEIGHT_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAROUTE_MAIN-WEIGHT_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAROUTE_MAIN-WEIGHT_UNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field FLEET_EQUNR1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAROUTE_MAIN-FLEET_EQUNR1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAROUTE_MAIN-FLEET_EQUNR1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FLEET_EQUNR2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAROUTE_MAIN-FLEET_EQUNR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAROUTE_MAIN-FLEET_EQUNR2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FLEET_EQUNR3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAROUTE_MAIN-FLEET_EQUNR3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAROUTE_MAIN-FLEET_EQUNR3.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAROUTE_MAIN-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAROUTE_MAIN-AUFNR.
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_EWAROUTE_MAIN_STR, 
ROUTE_TXT TYPE STRING,
STICHTAG TYPE STRING,
WASTE_TYPE1 TYPE STRING,
PRODUCT_AREA1 TYPE STRING,
RESULTYP TYPE STRING,
PRODUCT_AREA2 TYPE STRING,
RESULTYP2 TYPE STRING,
PRODUCT_AREA3 TYPE STRING,
RESULTYP3 TYPE STRING,
FLEET_CAT TYPE STRING,
CAL_ID TYPE STRING,
CORR_OPT TYPE STRING,
WASTE_CAL TYPE STRING,
KOLONNE TYPE STRING,
KOLONNE_TXT TYPE STRING,
STANDARDDRIVER TYPE STRING,
EVOL_ROUTE_TARGE TYPE STRING,
VOL_UNIT TYPE STRING,
EPREM_ROUTE_TARG TYPE STRING,
ECONT_ROUTE_TARG TYPE STRING,
ETIME_ROUTE_TARG TYPE STRING,
MEIZT TYPE STRING,
EDIST_ROUTE_TARG TYPE STRING,
MEDST TYPE STRING,
EWGHT_ROUTE_TARG TYPE STRING,
WEIGHT_UNIT TYPE STRING,
WASTE_DISP_PLANT TYPE STRING,
REGIOGROUP TYPE STRING,
FORM_ALLORD TYPE STRING,
FORM_POSORD TYPE STRING,
FORM_HEADORD TYPE STRING,
ESHIFT TYPE STRING,
SHIFT_VON TYPE STRING,
SHIFT_BIS TYPE STRING,
EPNT_ROUTE_TARG TYPE STRING,
FLEET_EQUNR1 TYPE STRING,
ARBID1 TYPE STRING,
ARBPL1 TYPE STRING,
WERKS1 TYPE STRING,
FLEET_EQUNR2 TYPE STRING,
ARBID2 TYPE STRING,
ARBPL2 TYPE STRING,
WERKS2 TYPE STRING,
FLEET_EQUNR3 TYPE STRING,
ARBID3 TYPE STRING,
ARBPL3 TYPE STRING,
WERKS3 TYPE STRING,
INACTIVE TYPE STRING,
INACTIVE_DATE TYPE STRING,
OBJNR TYPE STRING,
SWERK TYPE STRING,
STORT TYPE STRING,
BEBER TYPE STRING,
GSBER TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
BUKRS TYPE STRING,
DAUFN TYPE STRING,
AUFNR TYPE STRING,
DWERK TYPE STRING,
BEH_LGORT TYPE STRING,
COSTCOL TYPE STRING,
INITIAL_STATUS TYPE STRING,
FRAKTION TYPE STRING,
KOPFVERWIEGUNG TYPE STRING,
POSVERWIEGUNG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWAROUTE_MAIN_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_EWAROUTE_MAIN_STR-ROUTE_TXT sy-vline 
WA_EWAROUTE_MAIN_STR-STICHTAG sy-vline 
WA_EWAROUTE_MAIN_STR-WASTE_TYPE1 sy-vline 
WA_EWAROUTE_MAIN_STR-PRODUCT_AREA1 sy-vline 
WA_EWAROUTE_MAIN_STR-RESULTYP sy-vline 
WA_EWAROUTE_MAIN_STR-PRODUCT_AREA2 sy-vline 
WA_EWAROUTE_MAIN_STR-RESULTYP2 sy-vline 
WA_EWAROUTE_MAIN_STR-PRODUCT_AREA3 sy-vline 
WA_EWAROUTE_MAIN_STR-RESULTYP3 sy-vline 
WA_EWAROUTE_MAIN_STR-FLEET_CAT sy-vline 
WA_EWAROUTE_MAIN_STR-CAL_ID sy-vline 
WA_EWAROUTE_MAIN_STR-CORR_OPT sy-vline 
WA_EWAROUTE_MAIN_STR-WASTE_CAL sy-vline 
WA_EWAROUTE_MAIN_STR-KOLONNE sy-vline 
WA_EWAROUTE_MAIN_STR-KOLONNE_TXT sy-vline 
WA_EWAROUTE_MAIN_STR-STANDARDDRIVER sy-vline 
WA_EWAROUTE_MAIN_STR-EVOL_ROUTE_TARGE sy-vline 
WA_EWAROUTE_MAIN_STR-VOL_UNIT sy-vline 
WA_EWAROUTE_MAIN_STR-EPREM_ROUTE_TARG sy-vline 
WA_EWAROUTE_MAIN_STR-ECONT_ROUTE_TARG sy-vline 
WA_EWAROUTE_MAIN_STR-ETIME_ROUTE_TARG sy-vline 
WA_EWAROUTE_MAIN_STR-MEIZT sy-vline 
WA_EWAROUTE_MAIN_STR-EDIST_ROUTE_TARG sy-vline 
WA_EWAROUTE_MAIN_STR-MEDST sy-vline 
WA_EWAROUTE_MAIN_STR-EWGHT_ROUTE_TARG sy-vline 
WA_EWAROUTE_MAIN_STR-WEIGHT_UNIT sy-vline 
WA_EWAROUTE_MAIN_STR-WASTE_DISP_PLANT sy-vline 
WA_EWAROUTE_MAIN_STR-REGIOGROUP sy-vline 
WA_EWAROUTE_MAIN_STR-FORM_ALLORD sy-vline 
WA_EWAROUTE_MAIN_STR-FORM_POSORD sy-vline 
WA_EWAROUTE_MAIN_STR-FORM_HEADORD sy-vline 
WA_EWAROUTE_MAIN_STR-ESHIFT sy-vline 
WA_EWAROUTE_MAIN_STR-SHIFT_VON sy-vline 
WA_EWAROUTE_MAIN_STR-SHIFT_BIS sy-vline 
WA_EWAROUTE_MAIN_STR-EPNT_ROUTE_TARG sy-vline 
WA_EWAROUTE_MAIN_STR-FLEET_EQUNR1 sy-vline 
WA_EWAROUTE_MAIN_STR-ARBID1 sy-vline 
WA_EWAROUTE_MAIN_STR-ARBPL1 sy-vline 
WA_EWAROUTE_MAIN_STR-WERKS1 sy-vline 
WA_EWAROUTE_MAIN_STR-FLEET_EQUNR2 sy-vline 
WA_EWAROUTE_MAIN_STR-ARBID2 sy-vline 
WA_EWAROUTE_MAIN_STR-ARBPL2 sy-vline 
WA_EWAROUTE_MAIN_STR-WERKS2 sy-vline 
WA_EWAROUTE_MAIN_STR-FLEET_EQUNR3 sy-vline 
WA_EWAROUTE_MAIN_STR-ARBID3 sy-vline 
WA_EWAROUTE_MAIN_STR-ARBPL3 sy-vline 
WA_EWAROUTE_MAIN_STR-WERKS3 sy-vline 
WA_EWAROUTE_MAIN_STR-INACTIVE sy-vline 
WA_EWAROUTE_MAIN_STR-INACTIVE_DATE sy-vline 
WA_EWAROUTE_MAIN_STR-OBJNR sy-vline 
WA_EWAROUTE_MAIN_STR-SWERK sy-vline 
WA_EWAROUTE_MAIN_STR-STORT sy-vline 
WA_EWAROUTE_MAIN_STR-BEBER sy-vline 
WA_EWAROUTE_MAIN_STR-GSBER sy-vline 
WA_EWAROUTE_MAIN_STR-KOKRS sy-vline 
WA_EWAROUTE_MAIN_STR-KOSTL sy-vline 
WA_EWAROUTE_MAIN_STR-BUKRS sy-vline 
WA_EWAROUTE_MAIN_STR-DAUFN sy-vline 
WA_EWAROUTE_MAIN_STR-AUFNR sy-vline 
WA_EWAROUTE_MAIN_STR-DWERK sy-vline 
WA_EWAROUTE_MAIN_STR-BEH_LGORT sy-vline 
WA_EWAROUTE_MAIN_STR-COSTCOL sy-vline 
WA_EWAROUTE_MAIN_STR-INITIAL_STATUS sy-vline 
WA_EWAROUTE_MAIN_STR-FRAKTION sy-vline 
WA_EWAROUTE_MAIN_STR-KOPFVERWIEGUNG sy-vline 
WA_EWAROUTE_MAIN_STR-POSVERWIEGUNG sy-vline      INTO ld_text SEPARATED BY SPACE.

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