ABAP Select data from SAP table ISUWA_ROUTE_TARGETS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISUWA_ROUTE_TARGETS
*  INTO TABLE @DATA(IT_ISUWA_ROUTE_TARGETS2).
*--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_ISUWA_ROUTE_TARGETS INDEX 1 INTO DATA(WA_ISUWA_ROUTE_TARGETS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISUWA_ROUTE_TARGETS>-EVOL_ROUTE_TARGE = 1.
<ISUWA_ROUTE_TARGETS>-VOL_UNIT = 1.
<ISUWA_ROUTE_TARGETS>-EPREM_ROUTE_TARG = 1.
<ISUWA_ROUTE_TARGETS>-ECONT_ROUTE_TARG = 1.
<ISUWA_ROUTE_TARGETS>-ETIME_ROUTE_TARG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISUWA_ROUTE_TARGETS-MEIZT, sy-vline,
  WA_ISUWA_ROUTE_TARGETS-EDIST_ROUTE_TARG, sy-vline,
  WA_ISUWA_ROUTE_TARGETS-MEDST, sy-vline,
  WA_ISUWA_ROUTE_TARGETS-EWGHT_ROUTE_TARG, sy-vline,
  WA_ISUWA_ROUTE_TARGETS-WEIGHT_UNIT, sy-vline,
  WA_ISUWA_ROUTE_TARGETS-SHIFT_VON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISUWA_ROUTE_TARGETS 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_ISUWA_ROUTE_TARGETS 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_ISUWA_ROUTE_TARGETS INTO WA_ISUWA_ROUTE_TARGETS.


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

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

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

*Conversion exit CUNIT, internal->external for field WEIGHT_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISUWA_ROUTE_TARGETS-WEIGHT_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISUWA_ROUTE_TARGETS-WEIGHT_UNIT.
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_ISUWA_ROUTE_TARGETS_STR, 
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,
SHIFT_VON TYPE STRING,
SHIFT_BIS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISUWA_ROUTE_TARGETS_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_ISUWA_ROUTE_TARGETS_STR-EVOL_ROUTE_TARGE sy-vline 
WA_ISUWA_ROUTE_TARGETS_STR-VOL_UNIT sy-vline 
WA_ISUWA_ROUTE_TARGETS_STR-EPREM_ROUTE_TARG sy-vline 
WA_ISUWA_ROUTE_TARGETS_STR-ECONT_ROUTE_TARG sy-vline 
WA_ISUWA_ROUTE_TARGETS_STR-ETIME_ROUTE_TARG sy-vline 
WA_ISUWA_ROUTE_TARGETS_STR-MEIZT sy-vline 
WA_ISUWA_ROUTE_TARGETS_STR-EDIST_ROUTE_TARG sy-vline 
WA_ISUWA_ROUTE_TARGETS_STR-MEDST sy-vline 
WA_ISUWA_ROUTE_TARGETS_STR-EWGHT_ROUTE_TARG sy-vline 
WA_ISUWA_ROUTE_TARGETS_STR-WEIGHT_UNIT sy-vline 
WA_ISUWA_ROUTE_TARGETS_STR-SHIFT_VON sy-vline 
WA_ISUWA_ROUTE_TARGETS_STR-SHIFT_BIS sy-vline      INTO ld_text SEPARATED BY SPACE.

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