ABAP Select data from SAP table J_7LMSKUNDENDATEN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LMSKUNDENDATEN 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 J_7LMSKUNDENDATEN. 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 J_7LMSKUNDENDATEN 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_J_7LMSKUNDENDATEN TYPE STANDARD TABLE OF J_7LMSKUNDENDATEN,
      WA_J_7LMSKUNDENDATEN TYPE J_7LMSKUNDENDATEN,
      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: <J_7LMSKUNDENDATEN> TYPE J_7LMSKUNDENDATEN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LMSKUNDENDATEN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LMSKUNDENDATEN
  INTO TABLE IT_J_7LMSKUNDENDATEN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LMSKUNDENDATEN
*  INTO TABLE @DATA(IT_J_7LMSKUNDENDATEN2).
*--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_J_7LMSKUNDENDATEN INDEX 1 INTO DATA(WA_J_7LMSKUNDENDATEN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LMSKUNDENDATEN ASSIGNING <J_7LMSKUNDENDATEN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LMSKUNDENDATEN>-FELD_KUNNR = 1.
<J_7LMSKUNDENDATEN>-KUNNR = 1.
<J_7LMSKUNDENDATEN>-FELD_HAENDLERNR = 1.
<J_7LMSKUNDENDATEN>-HAENDLERNR = 1.
<J_7LMSKUNDENDATEN>-FELD_CONTRACTNR = 1.

ENDLOOP.

LOOP AT IT_J_7LMSKUNDENDATEN INTO WA_J_7LMSKUNDENDATEN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LMSKUNDENDATEN-CONTRACTNR, sy-vline,
  WA_J_7LMSKUNDENDATEN-FIRMA, sy-vline,
  WA_J_7LMSKUNDENDATEN-STRAS, sy-vline,
  WA_J_7LMSKUNDENDATEN-PSTLZ, sy-vline,
  WA_J_7LMSKUNDENDATEN-LAND1, sy-vline,
  WA_J_7LMSKUNDENDATEN-ORT01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LMSKUNDENDATEN 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_J_7LMSKUNDENDATEN 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_J_7LMSKUNDENDATEN INTO WA_J_7LMSKUNDENDATEN.


*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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LMSKUNDENDATEN-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LMSKUNDENDATEN-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field SMTP_ADDR
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_J_7LMSKUNDENDATEN-SMTP_ADDR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LMSKUNDENDATEN-SMTP_ADDR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_7LMSKUNDENDATEN-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LMSKUNDENDATEN-GJAHR.
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_J_7LMSKUNDENDATEN_STR, 
FELD_KUNNR TYPE STRING,
KUNNR TYPE STRING,
FELD_HAENDLERNR TYPE STRING,
HAENDLERNR TYPE STRING,
FELD_CONTRACTNR TYPE STRING,
CONTRACTNR TYPE STRING,
FIRMA TYPE STRING,
STRAS TYPE STRING,
PSTLZ TYPE STRING,
LAND1 TYPE STRING,
ORT01 TYPE STRING,
REGIO TYPE STRING,
REGIO_BEZEI TYPE STRING,
TELF1 TYPE STRING,
TELFX TYPE STRING,
SMTP_ADDR TYPE STRING,
ZNEHM TYPE STRING,
LFDNR TYPE STRING,
MMKNZ TYPE STRING,
QMKNZ TYPE STRING,
JMKNZ TYPE STRING,
JAKNZ TYPE STRING,
PERIO_TEXT TYPE STRING,
PERINR TYPE STRING,
GJAHR TYPE STRING,
STCEG TYPE STRING,
STENR TYPE STRING,
BUDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LMSKUNDENDATEN_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_J_7LMSKUNDENDATEN_STR-FELD_KUNNR sy-vline 
WA_J_7LMSKUNDENDATEN_STR-KUNNR sy-vline 
WA_J_7LMSKUNDENDATEN_STR-FELD_HAENDLERNR sy-vline 
WA_J_7LMSKUNDENDATEN_STR-HAENDLERNR sy-vline 
WA_J_7LMSKUNDENDATEN_STR-FELD_CONTRACTNR sy-vline 
WA_J_7LMSKUNDENDATEN_STR-CONTRACTNR sy-vline 
WA_J_7LMSKUNDENDATEN_STR-FIRMA sy-vline 
WA_J_7LMSKUNDENDATEN_STR-STRAS sy-vline 
WA_J_7LMSKUNDENDATEN_STR-PSTLZ sy-vline 
WA_J_7LMSKUNDENDATEN_STR-LAND1 sy-vline 
WA_J_7LMSKUNDENDATEN_STR-ORT01 sy-vline 
WA_J_7LMSKUNDENDATEN_STR-REGIO sy-vline 
WA_J_7LMSKUNDENDATEN_STR-REGIO_BEZEI sy-vline 
WA_J_7LMSKUNDENDATEN_STR-TELF1 sy-vline 
WA_J_7LMSKUNDENDATEN_STR-TELFX sy-vline 
WA_J_7LMSKUNDENDATEN_STR-SMTP_ADDR sy-vline 
WA_J_7LMSKUNDENDATEN_STR-ZNEHM sy-vline 
WA_J_7LMSKUNDENDATEN_STR-LFDNR sy-vline 
WA_J_7LMSKUNDENDATEN_STR-MMKNZ sy-vline 
WA_J_7LMSKUNDENDATEN_STR-QMKNZ sy-vline 
WA_J_7LMSKUNDENDATEN_STR-JMKNZ sy-vline 
WA_J_7LMSKUNDENDATEN_STR-JAKNZ sy-vline 
WA_J_7LMSKUNDENDATEN_STR-PERIO_TEXT sy-vline 
WA_J_7LMSKUNDENDATEN_STR-PERINR sy-vline 
WA_J_7LMSKUNDENDATEN_STR-GJAHR sy-vline 
WA_J_7LMSKUNDENDATEN_STR-STCEG sy-vline 
WA_J_7LMSKUNDENDATEN_STR-STENR sy-vline 
WA_J_7LMSKUNDENDATEN_STR-BUDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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