ABAP Select data from SAP table J_7LMSBELEG_UK1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LMSBELEG_UK1 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_7LMSBELEG_UK1. 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_7LMSBELEG_UK1 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_7LMSBELEG_UK1 TYPE STANDARD TABLE OF J_7LMSBELEG_UK1,
      WA_J_7LMSBELEG_UK1 TYPE J_7LMSBELEG_UK1,
      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_7LMSBELEG_UK1> TYPE J_7LMSBELEG_UK1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LMSBELEG_UK1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LMSBELEG_UK1
  INTO TABLE IT_J_7LMSBELEG_UK1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LMSBELEG_UK1
*  INTO TABLE @DATA(IT_J_7LMSBELEG_UK12).
*--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_7LMSBELEG_UK1 INDEX 1 INTO DATA(WA_J_7LMSBELEG_UK12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LMSBELEG_UK1 ASSIGNING <J_7LMSBELEG_UK1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LMSBELEG_UK1>-PREVIEW = 1.
<J_7LMSBELEG_UK1>-TESTTEXT = 1.
<J_7LMSBELEG_UK1>-INFOTEXT = 1.
<J_7LMSBELEG_UK1>-HOSTID = 1.
<J_7LMSBELEG_UK1>-GJAHR = 1.

ENDLOOP.

LOOP AT IT_J_7LMSBELEG_UK1 INTO WA_J_7LMSBELEG_UK1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LMSBELEG_UK1-BUDAT, sy-vline,
  WA_J_7LMSBELEG_UK1-FIRMA, sy-vline,
  WA_J_7LMSBELEG_UK1-ZNEHM, sy-vline,
  WA_J_7LMSBELEG_UK1-HDLST11, sy-vline,
  WA_J_7LMSBELEG_UK1-HDLST12, sy-vline,
  WA_J_7LMSBELEG_UK1-HDLST13, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LMSBELEG_UK1 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_7LMSBELEG_UK1 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_7LMSBELEG_UK1 INTO WA_J_7LMSBELEG_UK1.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_7LMSBELEG_UK1-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LMSBELEG_UK1-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LMSBELEG_UK1-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LMSBELEG_UK1-GEWEI.
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_7LMSBELEG_UK1_STR, 
PREVIEW TYPE STRING,
TESTTEXT TYPE STRING,
INFOTEXT TYPE STRING,
HOSTID TYPE STRING,
GJAHR TYPE STRING,
BUDAT TYPE STRING,
FIRMA TYPE STRING,
ZNEHM TYPE STRING,
HDLST11 TYPE STRING,
HDLST12 TYPE STRING,
HDLST13 TYPE STRING,
HDLST14 TYPE STRING,
HDLST15 TYPE STRING,
HDLST21 TYPE STRING,
HDLST22 TYPE STRING,
HDLST23 TYPE STRING,
HDLST24 TYPE STRING,
HDLST25 TYPE STRING,
GEWEI TYPE STRING,
RECOVERYTOTAL TYPE STRING,
ENDTEXT1 TYPE STRING,
ENDTEXT2 TYPE STRING,
ENDTEXT3 TYPE STRING,
ENDTEXT4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LMSBELEG_UK1_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_7LMSBELEG_UK1_STR-PREVIEW sy-vline 
WA_J_7LMSBELEG_UK1_STR-TESTTEXT sy-vline 
WA_J_7LMSBELEG_UK1_STR-INFOTEXT sy-vline 
WA_J_7LMSBELEG_UK1_STR-HOSTID sy-vline 
WA_J_7LMSBELEG_UK1_STR-GJAHR sy-vline 
WA_J_7LMSBELEG_UK1_STR-BUDAT sy-vline 
WA_J_7LMSBELEG_UK1_STR-FIRMA sy-vline 
WA_J_7LMSBELEG_UK1_STR-ZNEHM sy-vline 
WA_J_7LMSBELEG_UK1_STR-HDLST11 sy-vline 
WA_J_7LMSBELEG_UK1_STR-HDLST12 sy-vline 
WA_J_7LMSBELEG_UK1_STR-HDLST13 sy-vline 
WA_J_7LMSBELEG_UK1_STR-HDLST14 sy-vline 
WA_J_7LMSBELEG_UK1_STR-HDLST15 sy-vline 
WA_J_7LMSBELEG_UK1_STR-HDLST21 sy-vline 
WA_J_7LMSBELEG_UK1_STR-HDLST22 sy-vline 
WA_J_7LMSBELEG_UK1_STR-HDLST23 sy-vline 
WA_J_7LMSBELEG_UK1_STR-HDLST24 sy-vline 
WA_J_7LMSBELEG_UK1_STR-HDLST25 sy-vline 
WA_J_7LMSBELEG_UK1_STR-GEWEI sy-vline 
WA_J_7LMSBELEG_UK1_STR-RECOVERYTOTAL sy-vline 
WA_J_7LMSBELEG_UK1_STR-ENDTEXT1 sy-vline 
WA_J_7LMSBELEG_UK1_STR-ENDTEXT2 sy-vline 
WA_J_7LMSBELEG_UK1_STR-ENDTEXT3 sy-vline 
WA_J_7LMSBELEG_UK1_STR-ENDTEXT4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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