ABAP Select data from SAP table /SAPPCE/SDPC_DOWNPAYMENT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPPCE/SDPC_DOWNPAYMENT 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 /SAPPCE/SDPC_DOWNPAYMENT. 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 /SAPPCE/SDPC_DOWNPAYMENT 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_/SAPPCE/SDPC_DOWNPAYMENT TYPE STANDARD TABLE OF /SAPPCE/SDPC_DOWNPAYMENT,
      WA_/SAPPCE/SDPC_DOWNPAYMENT TYPE /SAPPCE/SDPC_DOWNPAYMENT,
      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: </SAPPCE/SDPC_DOWNPAYMENT> TYPE /SAPPCE/SDPC_DOWNPAYMENT.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPPCE/SDPC_DOWNPAYMENT
  INTO TABLE IT_/SAPPCE/SDPC_DOWNPAYMENT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPPCE/SDPC_DOWNPAYMENT
*  INTO TABLE @DATA(IT_/SAPPCE/SDPC_DOWNPAYMENT2).
*--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_/SAPPCE/SDPC_DOWNPAYMENT INDEX 1 INTO DATA(WA_/SAPPCE/SDPC_DOWNPAYMENT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPPCE/SDPC_DOWNPAYMENT ASSIGNING </SAPPCE/SDPC_DOWNPAYMENT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPPCE/SDPC_DOWNPAYMENT>-BUKRS = 1.
</SAPPCE/SDPC_DOWNPAYMENT>-DPCNR = 1.
</SAPPCE/SDPC_DOWNPAYMENT>-DCPNR = 1.
</SAPPCE/SDPC_DOWNPAYMENT>-DPNRB = 1.
</SAPPCE/SDPC_DOWNPAYMENT>-DPCKOART = 1.

ENDLOOP.

LOOP AT IT_/SAPPCE/SDPC_DOWNPAYMENT INTO WA_/SAPPCE/SDPC_DOWNPAYMENT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPPCE/SDPC_DOWNPAYMENT-PSTNG_DATE, sy-vline,
  WA_/SAPPCE/SDPC_DOWNPAYMENT-GJAHR, sy-vline,
  WA_/SAPPCE/SDPC_DOWNPAYMENT-BELNR, sy-vline,
  WA_/SAPPCE/SDPC_DOWNPAYMENT-BUZEI, sy-vline,
  WA_/SAPPCE/SDPC_DOWNPAYMENT-DP_AMT, sy-vline,
  WA_/SAPPCE/SDPC_DOWNPAYMENT-DP_OPEN_AMT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPPCE/SDPC_DOWNPAYMENT 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_/SAPPCE/SDPC_DOWNPAYMENT 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_/SAPPCE/SDPC_DOWNPAYMENT INTO WA_/SAPPCE/SDPC_DOWNPAYMENT.


*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 DPCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPCE/SDPC_DOWNPAYMENT-DPCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/SDPC_DOWNPAYMENT-DPCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPCE/SDPC_DOWNPAYMENT-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/SDPC_DOWNPAYMENT-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC132, internal->external for field DP_AMT
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPCE/SDPC_DOWNPAYMENT-DP_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/SDPC_DOWNPAYMENT-DP_AMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DP_OPEN_AMT
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPCE/SDPC_DOWNPAYMENT-DP_OPEN_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/SDPC_DOWNPAYMENT-DP_OPEN_AMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DP_CL_AMT
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPCE/SDPC_DOWNPAYMENT-DP_CL_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/SDPC_DOWNPAYMENT-DP_CL_AMT.
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_/SAPPCE/SDPC_DOWNPAYMENT_STR, 
BUKRS TYPE STRING,
DPCNR TYPE STRING,
DCPNR TYPE STRING,
DPNRB TYPE STRING,
DPCKOART TYPE STRING,
PSTNG_DATE TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
DP_AMT TYPE STRING,
DP_OPEN_AMT TYPE STRING,
DP_CL_AMT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPPCE/SDPC_DOWNPAYMENT_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_/SAPPCE/SDPC_DOWNPAYMENT_STR-BUKRS sy-vline 
WA_/SAPPCE/SDPC_DOWNPAYMENT_STR-DPCNR sy-vline 
WA_/SAPPCE/SDPC_DOWNPAYMENT_STR-DCPNR sy-vline 
WA_/SAPPCE/SDPC_DOWNPAYMENT_STR-DPNRB sy-vline 
WA_/SAPPCE/SDPC_DOWNPAYMENT_STR-DPCKOART sy-vline 
WA_/SAPPCE/SDPC_DOWNPAYMENT_STR-PSTNG_DATE sy-vline 
WA_/SAPPCE/SDPC_DOWNPAYMENT_STR-GJAHR sy-vline 
WA_/SAPPCE/SDPC_DOWNPAYMENT_STR-BELNR sy-vline 
WA_/SAPPCE/SDPC_DOWNPAYMENT_STR-BUZEI sy-vline 
WA_/SAPPCE/SDPC_DOWNPAYMENT_STR-DP_AMT sy-vline 
WA_/SAPPCE/SDPC_DOWNPAYMENT_STR-DP_OPEN_AMT sy-vline 
WA_/SAPPCE/SDPC_DOWNPAYMENT_STR-DP_CL_AMT sy-vline      INTO ld_text SEPARATED BY SPACE.

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