ABAP Select data from SAP table LIEF_PLUS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LIEF_PLUS
*  INTO TABLE @DATA(IT_LIEF_PLUS2).
*--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_LIEF_PLUS INDEX 1 INTO DATA(WA_LIEF_PLUS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LIEF_PLUS>-MANDT = 1.
<LIEF_PLUS>-SSOUR = 1.
<LIEF_PLUS>-VRSIO = 1.
<LIEF_PLUS>-SPMON = 1.
<LIEF_PLUS>-SPTAG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LIEF_PLUS-SPWOC, sy-vline,
  WA_LIEF_PLUS-SPBUP, sy-vline,
  WA_LIEF_PLUS-LGNUM, sy-vline,
  WA_LIEF_PLUS-VBELN, sy-vline,
  WA_LIEF_PLUS-PLGTYP, sy-vline,
  WA_LIEF_PLUS-PKOBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LIEF_PLUS 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_LIEF_PLUS 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_LIEF_PLUS INTO WA_LIEF_PLUS.


*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 PERI, internal->external for field SPMON
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_LIEF_PLUS-SPMON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LIEF_PLUS-SPMON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPWOC
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_LIEF_PLUS-SPWOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LIEF_PLUS-SPWOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPBUP
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_LIEF_PLUS-SPBUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LIEF_PLUS-SPBUP.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field GEWEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LIEF_PLUS-GEWEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LIEF_PLUS-GEWEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LIEF_PLUS-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LIEF_PLUS-VOLEH.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field PKUNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LIEF_PLUS-PKUNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LIEF_PLUS-PKUNAG.
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_LIEF_PLUS_STR, 
MANDT TYPE STRING,
SSOUR TYPE STRING,
VRSIO TYPE STRING,
SPMON TYPE STRING,
SPTAG TYPE STRING,
SPWOC TYPE STRING,
SPBUP TYPE STRING,
LGNUM TYPE STRING,
VBELN TYPE STRING,
PLGTYP TYPE STRING,
PKOBER TYPE STRING,
METYP TYPE STRING,
VHART TYPE STRING,
PERIV TYPE STRING,
VWDAT TYPE STRING,
GEWEH TYPE STRING,
VOLEH TYPE STRING,
METYP_E TYPE STRING,
METYP_R TYPE STRING,
METYP_D TYPE STRING,
MEGEW_E TYPE STRING,
MEGEW_R TYPE STRING,
MEGEW_D TYPE STRING,
MEVOL_E TYPE STRING,
MEVOL_R TYPE STRING,
MEVOL_D TYPE STRING,
BZEIT_E TYPE STRING,
BZEIT_R TYPE STRING,
BZEIT_D TYPE STRING,
VHART_E TYPE STRING,
VHART_R TYPE STRING,
VHART_D TYPE STRING,
ANZBP_E TYPE STRING,
ANZBP_R TYPE STRING,
ANZBP_D TYPE STRING,
VKORG TYPE STRING,
VSTEL TYPE STRING,
ABLAD TYPE STRING,
ROUTE TYPE STRING,
AULWE TYPE STRING,
VSBED TYPE STRING,
LPRIO TYPE STRING,
LFART TYPE STRING,
PSPDNR TYPE STRING,
PKUNWE TYPE STRING,
PKUNAG TYPE STRING,
VGLZT TYPE STRING,
CUSTSORT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LIEF_PLUS_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_LIEF_PLUS_STR-MANDT sy-vline 
WA_LIEF_PLUS_STR-SSOUR sy-vline 
WA_LIEF_PLUS_STR-VRSIO sy-vline 
WA_LIEF_PLUS_STR-SPMON sy-vline 
WA_LIEF_PLUS_STR-SPTAG sy-vline 
WA_LIEF_PLUS_STR-SPWOC sy-vline 
WA_LIEF_PLUS_STR-SPBUP sy-vline 
WA_LIEF_PLUS_STR-LGNUM sy-vline 
WA_LIEF_PLUS_STR-VBELN sy-vline 
WA_LIEF_PLUS_STR-PLGTYP sy-vline 
WA_LIEF_PLUS_STR-PKOBER sy-vline 
WA_LIEF_PLUS_STR-METYP sy-vline 
WA_LIEF_PLUS_STR-VHART sy-vline 
WA_LIEF_PLUS_STR-PERIV sy-vline 
WA_LIEF_PLUS_STR-VWDAT sy-vline 
WA_LIEF_PLUS_STR-GEWEH sy-vline 
WA_LIEF_PLUS_STR-VOLEH sy-vline 
WA_LIEF_PLUS_STR-METYP_E sy-vline 
WA_LIEF_PLUS_STR-METYP_R sy-vline 
WA_LIEF_PLUS_STR-METYP_D sy-vline 
WA_LIEF_PLUS_STR-MEGEW_E sy-vline 
WA_LIEF_PLUS_STR-MEGEW_R sy-vline 
WA_LIEF_PLUS_STR-MEGEW_D sy-vline 
WA_LIEF_PLUS_STR-MEVOL_E sy-vline 
WA_LIEF_PLUS_STR-MEVOL_R sy-vline 
WA_LIEF_PLUS_STR-MEVOL_D sy-vline 
WA_LIEF_PLUS_STR-BZEIT_E sy-vline 
WA_LIEF_PLUS_STR-BZEIT_R sy-vline 
WA_LIEF_PLUS_STR-BZEIT_D sy-vline 
WA_LIEF_PLUS_STR-VHART_E sy-vline 
WA_LIEF_PLUS_STR-VHART_R sy-vline 
WA_LIEF_PLUS_STR-VHART_D sy-vline 
WA_LIEF_PLUS_STR-ANZBP_E sy-vline 
WA_LIEF_PLUS_STR-ANZBP_R sy-vline 
WA_LIEF_PLUS_STR-ANZBP_D sy-vline 
WA_LIEF_PLUS_STR-VKORG sy-vline 
WA_LIEF_PLUS_STR-VSTEL sy-vline 
WA_LIEF_PLUS_STR-ABLAD sy-vline 
WA_LIEF_PLUS_STR-ROUTE sy-vline 
WA_LIEF_PLUS_STR-AULWE sy-vline 
WA_LIEF_PLUS_STR-VSBED sy-vline 
WA_LIEF_PLUS_STR-LPRIO sy-vline 
WA_LIEF_PLUS_STR-LFART sy-vline 
WA_LIEF_PLUS_STR-PSPDNR sy-vline 
WA_LIEF_PLUS_STR-PKUNWE sy-vline 
WA_LIEF_PLUS_STR-PKUNAG sy-vline 
WA_LIEF_PLUS_STR-VGLZT sy-vline 
WA_LIEF_PLUS_STR-CUSTSORT sy-vline      INTO ld_text SEPARATED BY SPACE.

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