ABAP Select data from SAP table BAPICUSLDP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPICUSLDP
*  INTO TABLE @DATA(IT_BAPICUSLDP2).
*--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_BAPICUSLDP INDEX 1 INTO DATA(WA_BAPICUSLDP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPICUSLDP>-CUSTOMER = 1.
<BAPICUSLDP>-UNLOAD_PT = 1.
<BAPICUSLDP>-SEQNUMBER = 1.
<BAPICUSLDP>-FCCALENDAR = 1.
<BAPICUSLDP>-RECVHOURID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPICUSLDP-TPQUALIF, sy-vline,
  WA_BAPICUSLDP-TPGROUP, sy-vline,
  WA_BAPICUSLDP-SLIFECLASS, sy-vline,
  WA_BAPICUSLDP-SLIFESURCH, sy-vline,
  WA_BAPICUSLDP-MO_AM_FROM, sy-vline,
  WA_BAPICUSLDP-MO_AM_UNTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPICUSLDP 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_BAPICUSLDP 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_BAPICUSLDP INTO WA_BAPICUSLDP.


*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 CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICUSLDP-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICUSLDP-CUSTOMER.
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_BAPICUSLDP_STR, 
CUSTOMER TYPE STRING,
UNLOAD_PT TYPE STRING,
SEQNUMBER TYPE STRING,
FCCALENDAR TYPE STRING,
RECVHOURID TYPE STRING,
TPQUALIF TYPE STRING,
TPGROUP TYPE STRING,
SLIFECLASS TYPE STRING,
SLIFESURCH TYPE STRING,
MO_AM_FROM TYPE STRING,
MO_AM_UNTL TYPE STRING,
MO_PM_FROM TYPE STRING,
MO_PM_UNTL TYPE STRING,
TU_AM_FROM TYPE STRING,
TU_AM_UNTL TYPE STRING,
TU_PM_FROM TYPE STRING,
TU_PM_UNTL TYPE STRING,
WE_AM_FROM TYPE STRING,
WE_AM_UNTL TYPE STRING,
WE_PM_FROM TYPE STRING,
WE_PM_UNTL TYPE STRING,
TH_AM_FROM TYPE STRING,
TH_AM_UNTL TYPE STRING,
TH_PM_FROM TYPE STRING,
TH_PM_UNTL TYPE STRING,
FR_AM_FROM TYPE STRING,
FR_AM_UNTL TYPE STRING,
FR_PM_FROM TYPE STRING,
FR_PM_UNTL TYPE STRING,
SA_AM_FROM TYPE STRING,
SA_AM_UNTL TYPE STRING,
SA_PM_FROM TYPE STRING,
SA_PM_UNTL TYPE STRING,
SU_AM_FROM TYPE STRING,
SU_AM_UNTL TYPE STRING,
SU_PM_FROM TYPE STRING,
SU_PM_UNTL TYPE STRING,
DEF_UNLDPT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPICUSLDP_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_BAPICUSLDP_STR-CUSTOMER sy-vline 
WA_BAPICUSLDP_STR-UNLOAD_PT sy-vline 
WA_BAPICUSLDP_STR-SEQNUMBER sy-vline 
WA_BAPICUSLDP_STR-FCCALENDAR sy-vline 
WA_BAPICUSLDP_STR-RECVHOURID sy-vline 
WA_BAPICUSLDP_STR-TPQUALIF sy-vline 
WA_BAPICUSLDP_STR-TPGROUP sy-vline 
WA_BAPICUSLDP_STR-SLIFECLASS sy-vline 
WA_BAPICUSLDP_STR-SLIFESURCH sy-vline 
WA_BAPICUSLDP_STR-MO_AM_FROM sy-vline 
WA_BAPICUSLDP_STR-MO_AM_UNTL sy-vline 
WA_BAPICUSLDP_STR-MO_PM_FROM sy-vline 
WA_BAPICUSLDP_STR-MO_PM_UNTL sy-vline 
WA_BAPICUSLDP_STR-TU_AM_FROM sy-vline 
WA_BAPICUSLDP_STR-TU_AM_UNTL sy-vline 
WA_BAPICUSLDP_STR-TU_PM_FROM sy-vline 
WA_BAPICUSLDP_STR-TU_PM_UNTL sy-vline 
WA_BAPICUSLDP_STR-WE_AM_FROM sy-vline 
WA_BAPICUSLDP_STR-WE_AM_UNTL sy-vline 
WA_BAPICUSLDP_STR-WE_PM_FROM sy-vline 
WA_BAPICUSLDP_STR-WE_PM_UNTL sy-vline 
WA_BAPICUSLDP_STR-TH_AM_FROM sy-vline 
WA_BAPICUSLDP_STR-TH_AM_UNTL sy-vline 
WA_BAPICUSLDP_STR-TH_PM_FROM sy-vline 
WA_BAPICUSLDP_STR-TH_PM_UNTL sy-vline 
WA_BAPICUSLDP_STR-FR_AM_FROM sy-vline 
WA_BAPICUSLDP_STR-FR_AM_UNTL sy-vline 
WA_BAPICUSLDP_STR-FR_PM_FROM sy-vline 
WA_BAPICUSLDP_STR-FR_PM_UNTL sy-vline 
WA_BAPICUSLDP_STR-SA_AM_FROM sy-vline 
WA_BAPICUSLDP_STR-SA_AM_UNTL sy-vline 
WA_BAPICUSLDP_STR-SA_PM_FROM sy-vline 
WA_BAPICUSLDP_STR-SA_PM_UNTL sy-vline 
WA_BAPICUSLDP_STR-SU_AM_FROM sy-vline 
WA_BAPICUSLDP_STR-SU_AM_UNTL sy-vline 
WA_BAPICUSLDP_STR-SU_PM_FROM sy-vline 
WA_BAPICUSLDP_STR-SU_PM_UNTL sy-vline 
WA_BAPICUSLDP_STR-DEF_UNLDPT sy-vline      INTO ld_text SEPARATED BY SPACE.

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