ABAP Select data from SAP table LTR2_DSCR_BP_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LTR2_DSCR_BP_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 LTR2_DSCR_BP_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 LTR2_DSCR_BP_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_LTR2_DSCR_BP_DATA TYPE STANDARD TABLE OF LTR2_DSCR_BP_DATA,
      WA_LTR2_DSCR_BP_DATA TYPE LTR2_DSCR_BP_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: <LTR2_DSCR_BP_DATA> TYPE LTR2_DSCR_BP_DATA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_LTR2_DSCR_BP_DATA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM LTR2_DSCR_BP_DATA
  INTO TABLE IT_LTR2_DSCR_BP_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LTR2_DSCR_BP_DATA
*  INTO TABLE @DATA(IT_LTR2_DSCR_BP_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_LTR2_DSCR_BP_DATA INDEX 1 INTO DATA(WA_LTR2_DSCR_BP_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_LTR2_DSCR_BP_DATA ASSIGNING <LTR2_DSCR_BP_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LTR2_DSCR_BP_DATA>-TYPE = 1.
<LTR2_DSCR_BP_DATA>-TITLE = 1.
<LTR2_DSCR_BP_DATA>-ANRED = 1.
<LTR2_DSCR_BP_DATA>-NAME_ORG1 = 1.
<LTR2_DSCR_BP_DATA>-NAME_LAST = 1.

ENDLOOP.

LOOP AT IT_LTR2_DSCR_BP_DATA INTO WA_LTR2_DSCR_BP_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LTR2_DSCR_BP_DATA-NAME_FIRST, sy-vline,
  WA_LTR2_DSCR_BP_DATA-NACHN, sy-vline,
  WA_LTR2_DSCR_BP_DATA-VORNA, sy-vline,
  WA_LTR2_DSCR_BP_DATA-NAME1, sy-vline,
  WA_LTR2_DSCR_BP_DATA-NAME_TEXT, sy-vline,
  WA_LTR2_DSCR_BP_DATA-NAME1_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LTR2_DSCR_BP_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_LTR2_DSCR_BP_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_LTR2_DSCR_BP_DATA INTO WA_LTR2_DSCR_BP_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.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LTR2_DSCR_BP_DATA-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LTR2_DSCR_BP_DATA-ADRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDRNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LTR2_DSCR_BP_DATA-ADDRNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LTR2_DSCR_BP_DATA-ADDRNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDRCOMM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LTR2_DSCR_BP_DATA-ADDRCOMM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LTR2_DSCR_BP_DATA-ADDRCOMM.
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_LTR2_DSCR_BP_DATA_STR, 
TYPE TYPE STRING,
TITLE TYPE STRING,
ANRED TYPE STRING,
NAME_ORG1 TYPE STRING,
NAME_LAST TYPE STRING,
NAME_FIRST TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
NAME1 TYPE STRING,
NAME_TEXT TYPE STRING,
NAME1_TEXT TYPE STRING,
CNAME TYPE STRING,
NICKNAME TYPE STRING,
RUFNM TYPE STRING,
SORTL TYPE STRING,
MCOD1 TYPE STRING,
MCOD2 TYPE STRING,
MC_NAME1 TYPE STRING,
MC_NAME2 TYPE STRING,
NCHMC TYPE STRING,
VNAMC TYPE STRING,
SORT1 TYPE STRING,
SORT2 TYPE STRING,
BU_SORT1 TYPE STRING,
BU_SORT2 TYPE STRING,
SEX TYPE STRING,
GESCH TYPE STRING,
XSEXM TYPE STRING,
XSEXF TYPE STRING,
XSEXU TYPE STRING,
LAND1 TYPE STRING,
COUNTRY TYPE STRING,
ADRNR TYPE STRING,
ADDRNUMBER TYPE STRING,
ADDRCOMM TYPE STRING,
ORT01 TYPE STRING,
CITY1 TYPE STRING,
PSTLZ TYPE STRING,
POST_CODE1 TYPE STRING,
REGION TYPE STRING,
REGIO TYPE STRING,
STRAS TYPE STRING,
STREET TYPE STRING,
HOUSE_NUM1 TYPE STRING,
MC_CITY1 TYPE STRING,
MC_STREET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LTR2_DSCR_BP_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_LTR2_DSCR_BP_DATA_STR-TYPE sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-TITLE sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-ANRED sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-NAME_ORG1 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-NAME_LAST sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-NAME_FIRST sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-NACHN sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-VORNA sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-NAME1 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-NAME_TEXT sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-NAME1_TEXT sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-CNAME sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-NICKNAME sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-RUFNM sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-SORTL sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-MCOD1 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-MCOD2 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-MC_NAME1 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-MC_NAME2 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-NCHMC sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-VNAMC sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-SORT1 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-SORT2 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-BU_SORT1 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-BU_SORT2 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-SEX sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-GESCH sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-XSEXM sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-XSEXF sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-XSEXU sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-LAND1 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-COUNTRY sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-ADRNR sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-ADDRNUMBER sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-ADDRCOMM sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-ORT01 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-CITY1 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-PSTLZ sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-POST_CODE1 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-REGION sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-REGIO sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-STRAS sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-STREET sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-HOUSE_NUM1 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-MC_CITY1 sy-vline 
WA_LTR2_DSCR_BP_DATA_STR-MC_STREET sy-vline      INTO ld_text SEPARATED BY SPACE.

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