ABAP Select data from SAP table PLMN_S_BO_LINKS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PLMN_S_BO_LINKS
*  INTO TABLE @DATA(IT_PLMN_S_BO_LINKS2).
*--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_PLMN_S_BO_LINKS INDEX 1 INTO DATA(WA_PLMN_S_BO_LINKS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PLMN_S_BO_LINKS>-MANDT = 1.
<PLMN_S_BO_LINKS>-KANTE = 1.
<PLMN_S_BO_LINKS>-MLANG = 1.
<PLMN_S_BO_LINKS>-NETID = 1.
<PLMN_S_BO_LINKS>-KANTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PLMN_S_BO_LINKS-TPVON, sy-vline,
  WA_PLMN_S_BO_LINKS-EQVON, sy-vline,
  WA_PLMN_S_BO_LINKS-TPNACH, sy-vline,
  WA_PLMN_S_BO_LINKS-EQNACH, sy-vline,
  WA_PLMN_S_BO_LINKS-LFDKNR, sy-vline,
  WA_PLMN_S_BO_LINKS-DATVA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PLMN_S_BO_LINKS 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_PLMN_S_BO_LINKS 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_PLMN_S_BO_LINKS INTO WA_PLMN_S_BO_LINKS.


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

*Conversion exit ISOLA, internal->external for field MLANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PLMN_S_BO_LINKS-MLANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMN_S_BO_LINKS-MLANG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TPVON
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_PLMN_S_BO_LINKS-TPVON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMN_S_BO_LINKS-TPVON.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TPLNR, internal->external for field TPNACH
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_PLMN_S_BO_LINKS-TPNACH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMN_S_BO_LINKS-TPNACH.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TPLNR, internal->external for field TPKANT
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_PLMN_S_BO_LINKS-TPKANT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMN_S_BO_LINKS-TPKANT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PLMN_S_BO_LINKS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMN_S_BO_LINKS-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PLMN_S_BO_LINKS-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMN_S_BO_LINKS-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MEDIUM_MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PLMN_S_BO_LINKS-MEDIUM_MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMN_S_BO_LINKS-MEDIUM_MATNR.
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_PLMN_S_BO_LINKS_STR, 
MANDT TYPE STRING,
KANTE TYPE STRING,
MLANG TYPE STRING,
NETID TYPE STRING,
KANTYP TYPE STRING,
TPVON TYPE STRING,
EQVON TYPE STRING,
TPNACH TYPE STRING,
EQNACH TYPE STRING,
LFDKNR TYPE STRING,
DATVA TYPE STRING,
ZEITVA TYPE STRING,
DATVB TYPE STRING,
ZEITVB TYPE STRING,
STATUS TYPE STRING,
TPKANT TYPE STRING,
EQKANT TYPE STRING,
MEDIU TYPE STRING,
BEZARP TYPE STRING,
BEZARL TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LVORM TYPE STRING,
NETYP TYPE STRING,
MATNR TYPE STRING,
SPRAS TYPE STRING,
KANXT TYPE STRING,
KZLTX TYPE STRING,
MEDIUM_MATNR TYPE STRING,
TPVON_DES TYPE STRING,
TPNACH_DES TYPE STRING,
EQVON_DES TYPE STRING,
EQNACH_DES TYPE STRING,
TPKANT_DES TYPE STRING,
EQKANT_DES TYPE STRING,
NETXT TYPE STRING,
MEDKXT TYPE STRING,
BEGTX TYPE STRING,
SAVED TYPE STRING,
SELECTED TYPE STRING,
READ_ONLY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PLMN_S_BO_LINKS_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_PLMN_S_BO_LINKS_STR-MANDT sy-vline 
WA_PLMN_S_BO_LINKS_STR-KANTE sy-vline 
WA_PLMN_S_BO_LINKS_STR-MLANG sy-vline 
WA_PLMN_S_BO_LINKS_STR-NETID sy-vline 
WA_PLMN_S_BO_LINKS_STR-KANTYP sy-vline 
WA_PLMN_S_BO_LINKS_STR-TPVON sy-vline 
WA_PLMN_S_BO_LINKS_STR-EQVON sy-vline 
WA_PLMN_S_BO_LINKS_STR-TPNACH sy-vline 
WA_PLMN_S_BO_LINKS_STR-EQNACH sy-vline 
WA_PLMN_S_BO_LINKS_STR-LFDKNR sy-vline 
WA_PLMN_S_BO_LINKS_STR-DATVA sy-vline 
WA_PLMN_S_BO_LINKS_STR-ZEITVA sy-vline 
WA_PLMN_S_BO_LINKS_STR-DATVB sy-vline 
WA_PLMN_S_BO_LINKS_STR-ZEITVB sy-vline 
WA_PLMN_S_BO_LINKS_STR-STATUS sy-vline 
WA_PLMN_S_BO_LINKS_STR-TPKANT sy-vline 
WA_PLMN_S_BO_LINKS_STR-EQKANT sy-vline 
WA_PLMN_S_BO_LINKS_STR-MEDIU sy-vline 
WA_PLMN_S_BO_LINKS_STR-BEZARP sy-vline 
WA_PLMN_S_BO_LINKS_STR-BEZARL sy-vline 
WA_PLMN_S_BO_LINKS_STR-ERDAT sy-vline 
WA_PLMN_S_BO_LINKS_STR-ERNAM sy-vline 
WA_PLMN_S_BO_LINKS_STR-AEDAT sy-vline 
WA_PLMN_S_BO_LINKS_STR-AENAM sy-vline 
WA_PLMN_S_BO_LINKS_STR-BEGRU sy-vline 
WA_PLMN_S_BO_LINKS_STR-LVORM sy-vline 
WA_PLMN_S_BO_LINKS_STR-NETYP sy-vline 
WA_PLMN_S_BO_LINKS_STR-MATNR sy-vline 
WA_PLMN_S_BO_LINKS_STR-SPRAS sy-vline 
WA_PLMN_S_BO_LINKS_STR-KANXT sy-vline 
WA_PLMN_S_BO_LINKS_STR-KZLTX sy-vline 
WA_PLMN_S_BO_LINKS_STR-MEDIUM_MATNR sy-vline 
WA_PLMN_S_BO_LINKS_STR-TPVON_DES sy-vline 
WA_PLMN_S_BO_LINKS_STR-TPNACH_DES sy-vline 
WA_PLMN_S_BO_LINKS_STR-EQVON_DES sy-vline 
WA_PLMN_S_BO_LINKS_STR-EQNACH_DES sy-vline 
WA_PLMN_S_BO_LINKS_STR-TPKANT_DES sy-vline 
WA_PLMN_S_BO_LINKS_STR-EQKANT_DES sy-vline 
WA_PLMN_S_BO_LINKS_STR-NETXT sy-vline 
WA_PLMN_S_BO_LINKS_STR-MEDKXT sy-vline 
WA_PLMN_S_BO_LINKS_STR-BEGTX sy-vline 
WA_PLMN_S_BO_LINKS_STR-SAVED sy-vline 
WA_PLMN_S_BO_LINKS_STR-SELECTED sy-vline 
WA_PLMN_S_BO_LINKS_STR-READ_ONLY sy-vline      INTO ld_text SEPARATED BY SPACE.

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