ABAP Select data from SAP table MDI_BP_LOCALITY_INFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDI_BP_LOCALITY_INFO
*  INTO TABLE @DATA(IT_MDI_BP_LOCALITY_INFO2).
*--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_MDI_BP_LOCALITY_INFO INDEX 1 INTO DATA(WA_MDI_BP_LOCALITY_INFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDI_BP_LOCALITY_INFO>-PRIMARY_REGION = 1.
<MDI_BP_LOCALITY_INFO>-CODE = 1.
<MDI_BP_LOCALITY_INFO>-SECONDARY_REGION = 1.
<MDI_BP_LOCALITY_INFO>-NAME = 1.
<MDI_BP_LOCALITY_INFO>-REF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDI_BP_LOCALITY_INFO-NAME, sy-vline,
  WA_MDI_BP_LOCALITY_INFO-DESCR, sy-vline,
  WA_MDI_BP_LOCALITY_INFO-CODE, sy-vline,
  WA_MDI_BP_LOCALITY_INFO-SECONDARY_REGION_VC, sy-vline,
  WA_MDI_BP_LOCALITY_INFO-TERTIARY_REGION, sy-vline,
  WA_MDI_BP_LOCALITY_INFO-NAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDI_BP_LOCALITY_INFO 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_MDI_BP_LOCALITY_INFO 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_MDI_BP_LOCALITY_INFO INTO WA_MDI_BP_LOCALITY_INFO.


*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_MDI_BP_LOCALITY_INFO_STR, 
PRIMARY_REGION TYPE STRING,
CODE TYPE STRING,
SECONDARY_REGION TYPE STRING,
NAME TYPE STRING,
REF TYPE STRING,
NAME TYPE STRING,
DESCR TYPE STRING,
CODE TYPE STRING,
SECONDARY_REGION_VC TYPE STRING,
TERTIARY_REGION TYPE STRING,
NAME TYPE STRING,
DESCR TYPE STRING,
CODE TYPE STRING,
TERTIARY_REGION_VC TYPE STRING,
TOWN TYPE STRING,
NAME TYPE STRING,
REF TYPE STRING,
NAME TYPE STRING,
DESCR TYPE STRING,
CODE TYPE STRING,
DISTRICT TYPE STRING,
NAME TYPE STRING,
REF TYPE STRING,
NAME TYPE STRING,
DESCR TYPE STRING,
CODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDI_BP_LOCALITY_INFO_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_MDI_BP_LOCALITY_INFO_STR-PRIMARY_REGION sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-CODE sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-SECONDARY_REGION sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-NAME sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-REF sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-NAME sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-DESCR sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-CODE sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-SECONDARY_REGION_VC sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-TERTIARY_REGION sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-NAME sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-DESCR sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-CODE sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-TERTIARY_REGION_VC sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-TOWN sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-NAME sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-REF sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-NAME sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-DESCR sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-CODE sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-DISTRICT sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-NAME sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-REF sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-NAME sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-DESCR sy-vline 
WA_MDI_BP_LOCALITY_INFO_STR-CODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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