ABAP Select data from SAP table J_7LCD_J_7LE02 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LCD_J_7LE02 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_7LCD_J_7LE02. 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_7LCD_J_7LE02 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_7LCD_J_7LE02 TYPE STANDARD TABLE OF J_7LCD_J_7LE02,
      WA_J_7LCD_J_7LE02 TYPE J_7LCD_J_7LE02,
      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_7LCD_J_7LE02> TYPE J_7LCD_J_7LE02.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LCD_J_7LE02.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LCD_J_7LE02
  INTO TABLE IT_J_7LCD_J_7LE02.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LCD_J_7LE02
*  INTO TABLE @DATA(IT_J_7LCD_J_7LE022).
*--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_7LCD_J_7LE02 INDEX 1 INTO DATA(WA_J_7LCD_J_7LE022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LCD_J_7LE02 ASSIGNING <J_7LCD_J_7LE02>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LCD_J_7LE02>-MANDT = 1.
<J_7LCD_J_7LE02>-ENTNR = 1.
<J_7LCD_J_7LE02>-BUKRS = 1.
<J_7LCD_J_7LE02>-LAND1 = 1.
<J_7LCD_J_7LE02>-WAERE = 1.

ENDLOOP.

LOOP AT IT_J_7LCD_J_7LE02 INTO WA_J_7LCD_J_7LE02.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LCD_J_7LE02-DATPE, sy-vline,
  WA_J_7LCD_J_7LE02-DATZE, sy-vline,
  WA_J_7LCD_J_7LE02-DATSP, sy-vline,
  WA_J_7LCD_J_7LE02-KALSM, sy-vline,
  WA_J_7LCD_J_7LE02-MWSKZ, sy-vline,
  WA_J_7LCD_J_7LE02-KURST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LCD_J_7LE02 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_7LCD_J_7LE02 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_7LCD_J_7LE02 INTO WA_J_7LCD_J_7LE02.


*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 ENTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LCD_J_7LE02-ENTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LCD_J_7LE02-ENTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field REFKMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LCD_J_7LE02-REFKMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LCD_J_7LE02-REFKMEIN.
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_7LCD_J_7LE02_STR, 
MANDT TYPE STRING,
ENTNR TYPE STRING,
BUKRS TYPE STRING,
LAND1 TYPE STRING,
WAERE TYPE STRING,
DATPE TYPE STRING,
DATZE TYPE STRING,
DATSP TYPE STRING,
KALSM TYPE STRING,
MWSKZ TYPE STRING,
KURST TYPE STRING,
ZNEHM TYPE STRING,
UNAME TYPE STRING,
AUDITOR TYPE STRING,
KOOPN TYPE STRING,
HDLST TYPE STRING,
MAINE TYPE STRING,
ESTAT TYPE STRING,
ZART TYPE STRING,
REFAKTOR TYPE STRING,
REFPREIS TYPE STRING,
REFKPEIN TYPE STRING,
REFKMEIN TYPE STRING,
AALKZ TYPE STRING,
LANDK TYPE STRING,
NO_SDKONKZ TYPE STRING,
NO_MMKONKZ TYPE STRING,
BUKRSR TYPE STRING,
DATABADM TYPE STRING,
DATBIADM TYPE STRING,
ERSDAADM TYPE STRING,
ERZETADM TYPE STRING,
ERNAMADM TYPE STRING,
LAEDAADM TYPE STRING,
AEZETADM TYPE STRING,
AENAMADM TYPE STRING,
LVORMADM TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LCD_J_7LE02_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_7LCD_J_7LE02_STR-MANDT sy-vline 
WA_J_7LCD_J_7LE02_STR-ENTNR sy-vline 
WA_J_7LCD_J_7LE02_STR-BUKRS sy-vline 
WA_J_7LCD_J_7LE02_STR-LAND1 sy-vline 
WA_J_7LCD_J_7LE02_STR-WAERE sy-vline 
WA_J_7LCD_J_7LE02_STR-DATPE sy-vline 
WA_J_7LCD_J_7LE02_STR-DATZE sy-vline 
WA_J_7LCD_J_7LE02_STR-DATSP sy-vline 
WA_J_7LCD_J_7LE02_STR-KALSM sy-vline 
WA_J_7LCD_J_7LE02_STR-MWSKZ sy-vline 
WA_J_7LCD_J_7LE02_STR-KURST sy-vline 
WA_J_7LCD_J_7LE02_STR-ZNEHM sy-vline 
WA_J_7LCD_J_7LE02_STR-UNAME sy-vline 
WA_J_7LCD_J_7LE02_STR-AUDITOR sy-vline 
WA_J_7LCD_J_7LE02_STR-KOOPN sy-vline 
WA_J_7LCD_J_7LE02_STR-HDLST sy-vline 
WA_J_7LCD_J_7LE02_STR-MAINE sy-vline 
WA_J_7LCD_J_7LE02_STR-ESTAT sy-vline 
WA_J_7LCD_J_7LE02_STR-ZART sy-vline 
WA_J_7LCD_J_7LE02_STR-REFAKTOR sy-vline 
WA_J_7LCD_J_7LE02_STR-REFPREIS sy-vline 
WA_J_7LCD_J_7LE02_STR-REFKPEIN sy-vline 
WA_J_7LCD_J_7LE02_STR-REFKMEIN sy-vline 
WA_J_7LCD_J_7LE02_STR-AALKZ sy-vline 
WA_J_7LCD_J_7LE02_STR-LANDK sy-vline 
WA_J_7LCD_J_7LE02_STR-NO_SDKONKZ sy-vline 
WA_J_7LCD_J_7LE02_STR-NO_MMKONKZ sy-vline 
WA_J_7LCD_J_7LE02_STR-BUKRSR sy-vline 
WA_J_7LCD_J_7LE02_STR-DATABADM sy-vline 
WA_J_7LCD_J_7LE02_STR-DATBIADM sy-vline 
WA_J_7LCD_J_7LE02_STR-ERSDAADM sy-vline 
WA_J_7LCD_J_7LE02_STR-ERZETADM sy-vline 
WA_J_7LCD_J_7LE02_STR-ERNAMADM sy-vline 
WA_J_7LCD_J_7LE02_STR-LAEDAADM sy-vline 
WA_J_7LCD_J_7LE02_STR-AEZETADM sy-vline 
WA_J_7LCD_J_7LE02_STR-AENAMADM sy-vline 
WA_J_7LCD_J_7LE02_STR-LVORMADM sy-vline 
WA_J_7LCD_J_7LE02_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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