ABAP Select data from SAP table /SAPPCE/SDPC_CON_ACC_ALV 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_CON_ACC_ALV 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_CON_ACC_ALV. 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_CON_ACC_ALV 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_CON_ACC_ALV TYPE STANDARD TABLE OF /SAPPCE/SDPC_CON_ACC_ALV,
      WA_/SAPPCE/SDPC_CON_ACC_ALV TYPE /SAPPCE/SDPC_CON_ACC_ALV,
      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_CON_ACC_ALV> TYPE /SAPPCE/SDPC_CON_ACC_ALV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPPCE/SDPC_CON_ACC_ALV
*  INTO TABLE @DATA(IT_/SAPPCE/SDPC_CON_ACC_ALV2).
*--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_CON_ACC_ALV INDEX 1 INTO DATA(WA_/SAPPCE/SDPC_CON_ACC_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPPCE/SDPC_CON_ACC_ALV>-MANDT = 1.
</SAPPCE/SDPC_CON_ACC_ALV>-BUKRS = 1.
</SAPPCE/SDPC_CON_ACC_ALV>-DPCNR = 1.
</SAPPCE/SDPC_CON_ACC_ALV>-DCANR = 1.
</SAPPCE/SDPC_CON_ACC_ALV>-GL_ACCOUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPPCE/SDPC_CON_ACC_ALV-OBJNR, sy-vline,
  WA_/SAPPCE/SDPC_CON_ACC_ALV-DPROZ, sy-vline,
  WA_/SAPPCE/SDPC_CON_ACC_ALV-POSID, sy-vline,
  WA_/SAPPCE/SDPC_CON_ACC_ALV-POST1, sy-vline,
  WA_/SAPPCE/SDPC_CON_ACC_ALV-TXT20, sy-vline,
  WA_/SAPPCE/SDPC_CON_ACC_ALV-KOSTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPPCE/SDPC_CON_ACC_ALV 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_CON_ACC_ALV 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_CON_ACC_ALV INTO WA_/SAPPCE/SDPC_CON_ACC_ALV.


*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_CON_ACC_ALV-DPCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/SDPC_CON_ACC_ALV-DPCNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPCE/SDPC_CON_ACC_ALV-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPCE/SDPC_CON_ACC_ALV-AUFNR.
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_CON_ACC_ALV_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
DPCNR TYPE STRING,
DCANR TYPE STRING,
GL_ACCOUNT TYPE STRING,
OBJNR TYPE STRING,
DPROZ TYPE STRING,
POSID TYPE STRING,
POST1 TYPE STRING,
TXT20 TYPE STRING,
KOSTL TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
AUFNR TYPE STRING,
POST2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPPCE/SDPC_CON_ACC_ALV_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_CON_ACC_ALV_STR-MANDT sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-BUKRS sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-DPCNR sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-DCANR sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-GL_ACCOUNT sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-OBJNR sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-DPROZ sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-POSID sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-POST1 sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-TXT20 sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-KOSTL sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-NPLNR sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-VORNR sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-AUFNR sy-vline 
WA_/SAPPCE/SDPC_CON_ACC_ALV_STR-POST2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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