ABAP Select data from SAP table UMC_YS_BPSLINK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UMC_YS_BPSLINK
*  INTO TABLE @DATA(IT_UMC_YS_BPSLINK2).
*--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_UMC_YS_BPSLINK INDEX 1 INTO DATA(WA_UMC_YS_BPSLINK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UMC_YS_BPSLINK>-ICON = 1.
<UMC_YS_BPSLINK>-AREA = 1.
<UMC_YS_BPSLINK>-AREATXT = 1.
<UMC_YS_BPSLINK>-PLEVEL = 1.
<UMC_YS_BPSLINK>-PLEVELTXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UMC_YS_BPSLINK-PPACKAGE, sy-vline,
  WA_UMC_YS_BPSLINK-PPACKAGETXT, sy-vline,
  WA_UMC_YS_BPSLINK-METHOD, sy-vline,
  WA_UMC_YS_BPSLINK-METHODTXT, sy-vline,
  WA_UMC_YS_BPSLINK-PARAM, sy-vline,
  WA_UMC_YS_BPSLINK-PARAMTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UMC_YS_BPSLINK 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_UMC_YS_BPSLINK 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_UMC_YS_BPSLINK INTO WA_UMC_YS_BPSLINK.


*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 BPS_LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_UMC_YS_BPSLINK-BPS_LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UMC_YS_BPSLINK-BPS_LANGU.
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_UMC_YS_BPSLINK_STR, 
ICON TYPE STRING,
AREA TYPE STRING,
AREATXT TYPE STRING,
PLEVEL TYPE STRING,
PLEVELTXT TYPE STRING,
PPACKAGE TYPE STRING,
PPACKAGETXT TYPE STRING,
METHOD TYPE STRING,
METHODTXT TYPE STRING,
PARAM TYPE STRING,
PARAMTXT TYPE STRING,
PROFILE TYPE STRING,
PROFILETXT TYPE STRING,
NODE_TYPE TYPE STRING,
WIFNAME TYPE STRING,
BPS_CLIENT TYPE STRING,
BPS_LANGU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UMC_YS_BPSLINK_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_UMC_YS_BPSLINK_STR-ICON sy-vline 
WA_UMC_YS_BPSLINK_STR-AREA sy-vline 
WA_UMC_YS_BPSLINK_STR-AREATXT sy-vline 
WA_UMC_YS_BPSLINK_STR-PLEVEL sy-vline 
WA_UMC_YS_BPSLINK_STR-PLEVELTXT sy-vline 
WA_UMC_YS_BPSLINK_STR-PPACKAGE sy-vline 
WA_UMC_YS_BPSLINK_STR-PPACKAGETXT sy-vline 
WA_UMC_YS_BPSLINK_STR-METHOD sy-vline 
WA_UMC_YS_BPSLINK_STR-METHODTXT sy-vline 
WA_UMC_YS_BPSLINK_STR-PARAM sy-vline 
WA_UMC_YS_BPSLINK_STR-PARAMTXT sy-vline 
WA_UMC_YS_BPSLINK_STR-PROFILE sy-vline 
WA_UMC_YS_BPSLINK_STR-PROFILETXT sy-vline 
WA_UMC_YS_BPSLINK_STR-NODE_TYPE sy-vline 
WA_UMC_YS_BPSLINK_STR-WIFNAME sy-vline 
WA_UMC_YS_BPSLINK_STR-BPS_CLIENT sy-vline 
WA_UMC_YS_BPSLINK_STR-BPS_LANGU sy-vline      INTO ld_text SEPARATED BY SPACE.

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