ABAP Select data from SAP table LOCATION_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LOCATION_DATA
*  INTO TABLE @DATA(IT_LOCATION_DATA2).
*--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_LOCATION_DATA INDEX 1 INTO DATA(WA_LOCATION_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LOCATION_DATA>-CONTROLLER = 1.
<LOCATION_DATA>-API_VERSION = 1.
<LOCATION_DATA>-JCD_UNIFY_IND = 1.
<LOCATION_DATA>-COUNTRY = 1.
<LOCATION_DATA>-STATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LOCATION_DATA-COUNTY, sy-vline,
  WA_LOCATION_DATA-CITY, sy-vline,
  WA_LOCATION_DATA-ZIPCODE, sy-vline,
  WA_LOCATION_DATA-TXJCD_L1, sy-vline,
  WA_LOCATION_DATA-TXJCD_L2, sy-vline,
  WA_LOCATION_DATA-TXJCD_L3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LOCATION_DATA 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_LOCATION_DATA 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_LOCATION_DATA INTO WA_LOCATION_DATA.


*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_LOCATION_DATA_STR, 
CONTROLLER TYPE STRING,
API_VERSION TYPE STRING,
JCD_UNIFY_IND TYPE STRING,
COUNTRY TYPE STRING,
STATE TYPE STRING,
COUNTY TYPE STRING,
CITY TYPE STRING,
ZIPCODE TYPE STRING,
TXJCD_L1 TYPE STRING,
TXJCD_L2 TYPE STRING,
TXJCD_L3 TYPE STRING,
TXJCD_L4 TYPE STRING,
TXJCD TYPE STRING,
OUTOF_CITY TYPE STRING,
STREET_ADDRESS TYPE STRING,
CONTROLLER TYPE STRING,
STREET TYPE STRING,
STREET1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LOCATION_DATA_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_LOCATION_DATA_STR-CONTROLLER sy-vline 
WA_LOCATION_DATA_STR-API_VERSION sy-vline 
WA_LOCATION_DATA_STR-JCD_UNIFY_IND sy-vline 
WA_LOCATION_DATA_STR-COUNTRY sy-vline 
WA_LOCATION_DATA_STR-STATE sy-vline 
WA_LOCATION_DATA_STR-COUNTY sy-vline 
WA_LOCATION_DATA_STR-CITY sy-vline 
WA_LOCATION_DATA_STR-ZIPCODE sy-vline 
WA_LOCATION_DATA_STR-TXJCD_L1 sy-vline 
WA_LOCATION_DATA_STR-TXJCD_L2 sy-vline 
WA_LOCATION_DATA_STR-TXJCD_L3 sy-vline 
WA_LOCATION_DATA_STR-TXJCD_L4 sy-vline 
WA_LOCATION_DATA_STR-TXJCD sy-vline 
WA_LOCATION_DATA_STR-OUTOF_CITY sy-vline 
WA_LOCATION_DATA_STR-STREET_ADDRESS sy-vline 
WA_LOCATION_DATA_STR-CONTROLLER sy-vline 
WA_LOCATION_DATA_STR-STREET sy-vline 
WA_LOCATION_DATA_STR-STREET1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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