ABAP Select data from SAP table LCM_S_BOINT_LT_MAPPING_VAR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LCM_S_BOINT_LT_MAPPING_VAR
*  INTO TABLE @DATA(IT_LCM_S_BOINT_LT_MAPPING_VAR2).
*--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_LCM_S_BOINT_LT_MAPPING_VAR INDEX 1 INTO DATA(WA_LCM_S_BOINT_LT_MAPPING_VAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LCM_S_BOINT_LT_MAPPING_VAR>-HEADER = 1.
<LCM_S_BOINT_LT_MAPPING_VAR>-LEGALTRANSACTIONTITLE = 1.
<LCM_S_BOINT_LT_MAPPING_VAR>-LGLCNTNTMLANGUAGE = 1.
<LCM_S_BOINT_LT_MAPPING_VAR>-LGLCNTNTMGOVLAW = 1.
<LCM_S_BOINT_LT_MAPPING_VAR>-LGLTRANSACCESSLVL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LCM_S_BOINT_LT_MAPPING_VAR-LGLCNTNTMMAINORGTYPE, sy-vline,
  WA_LCM_S_BOINT_LT_MAPPING_VAR-LGLCNTNTMMAINORG, sy-vline,
  WA_LCM_S_BOINT_LT_MAPPING_VAR-LGLCNTNTMREQUESTER, sy-vline,
  WA_LCM_S_BOINT_LT_MAPPING_VAR-DUMMY_LCM_LEGALTR_INCL_EEW_PS, sy-vline,
  WA_LCM_S_BOINT_LT_MAPPING_VAR-CATEGORY_GROUPS, sy-vline,
  WA_LCM_S_BOINT_LT_MAPPING_VAR-ENTITIES, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LCM_S_BOINT_LT_MAPPING_VAR 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_LCM_S_BOINT_LT_MAPPING_VAR 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_LCM_S_BOINT_LT_MAPPING_VAR INTO WA_LCM_S_BOINT_LT_MAPPING_VAR.


*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 ISOLA, internal->external for field LGLCNTNTMLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_LCM_S_BOINT_LT_MAPPING_VAR-LGLCNTNTMLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LCM_S_BOINT_LT_MAPPING_VAR-LGLCNTNTMLANGUAGE.
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_LCM_S_BOINT_LT_MAPPING_VAR_STR, 
HEADER TYPE STRING,
LEGALTRANSACTIONTITLE TYPE STRING,
LGLCNTNTMLANGUAGE TYPE STRING,
LGLCNTNTMGOVLAW TYPE STRING,
LGLTRANSACCESSLVL TYPE STRING,
LGLCNTNTMMAINORGTYPE TYPE STRING,
LGLCNTNTMMAINORG TYPE STRING,
LGLCNTNTMREQUESTER TYPE STRING,
DUMMY_LCM_LEGALTR_INCL_EEW_PS TYPE STRING,
CATEGORY_GROUPS TYPE STRING,
ENTITIES TYPE STRING,
INTERNAL_CONTACTS TYPE STRING,
EXTERNAL_CONTACTS TYPE STRING,
LINKED_OBJECTS TYPE STRING,
RELATIONSHIPS TYPE STRING,
DATES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LCM_S_BOINT_LT_MAPPING_VAR_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_LCM_S_BOINT_LT_MAPPING_VAR_STR-HEADER sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-LEGALTRANSACTIONTITLE sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-LGLCNTNTMLANGUAGE sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-LGLCNTNTMGOVLAW sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-LGLTRANSACCESSLVL sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-LGLCNTNTMMAINORGTYPE sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-LGLCNTNTMMAINORG sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-LGLCNTNTMREQUESTER sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-DUMMY_LCM_LEGALTR_INCL_EEW_PS sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-CATEGORY_GROUPS sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-ENTITIES sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-INTERNAL_CONTACTS sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-EXTERNAL_CONTACTS sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-LINKED_OBJECTS sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-RELATIONSHIPS sy-vline 
WA_LCM_S_BOINT_LT_MAPPING_VAR_STR-DATES sy-vline      INTO ld_text SEPARATED BY SPACE.

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