ABAP Select data from SAP table V_T77HCP_DPCI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T77HCP_DPCI 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 V_T77HCP_DPCI. 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 V_T77HCP_DPCI 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_V_T77HCP_DPCI TYPE STANDARD TABLE OF V_T77HCP_DPCI,
      WA_V_T77HCP_DPCI TYPE V_T77HCP_DPCI,
      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: <V_T77HCP_DPCI> TYPE V_T77HCP_DPCI.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T77HCP_DPCI.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T77HCP_DPCI
  INTO TABLE IT_V_T77HCP_DPCI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T77HCP_DPCI
*  INTO TABLE @DATA(IT_V_T77HCP_DPCI2).
*--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_V_T77HCP_DPCI INDEX 1 INTO DATA(WA_V_T77HCP_DPCI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T77HCP_DPCI ASSIGNING <V_T77HCP_DPCI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T77HCP_DPCI>-MANDT = 1.
<V_T77HCP_DPCI>-PCONTEXT = 1.
<V_T77HCP_DPCI>-CITEM_BAS = 1.
<V_T77HCP_DPCI>-CITEM_DEP = 1.
<V_T77HCP_DPCI>-SW_TIMEBAS = 1.

ENDLOOP.

LOOP AT IT_V_T77HCP_DPCI INTO WA_V_T77HCP_DPCI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T77HCP_DPCI-BAS_01PREF, sy-vline,
  WA_V_T77HCP_DPCI-BAS_02PREF, sy-vline,
  WA_V_T77HCP_DPCI-BAS_03PREF, sy-vline,
  WA_V_T77HCP_DPCI-BAS_04PREF, sy-vline,
  WA_V_T77HCP_DPCI-BAS_05PREF, sy-vline,
  WA_V_T77HCP_DPCI-BAS_06PREF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T77HCP_DPCI 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_V_T77HCP_DPCI 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_V_T77HCP_DPCI INTO WA_V_T77HCP_DPCI.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_V_T77HCP_DPCI_STR, 
MANDT TYPE STRING,
PCONTEXT TYPE STRING,
CITEM_BAS TYPE STRING,
CITEM_DEP TYPE STRING,
SW_TIMEBAS TYPE STRING,
BAS_01PREF TYPE STRING,
BAS_02PREF TYPE STRING,
BAS_03PREF TYPE STRING,
BAS_04PREF TYPE STRING,
BAS_05PREF TYPE STRING,
BAS_06PREF TYPE STRING,
BAS_07PREF TYPE STRING,
BAS_08PREF TYPE STRING,
BAS_09PREF TYPE STRING,
BAS_10PREF TYPE STRING,
BAS_11PREF TYPE STRING,
BAS_12PREF TYPE STRING,
BAS_01 TYPE STRING,
BAS_02 TYPE STRING,
BAS_03 TYPE STRING,
BAS_04 TYPE STRING,
BAS_05 TYPE STRING,
BAS_06 TYPE STRING,
BAS_07 TYPE STRING,
BAS_08 TYPE STRING,
BAS_09 TYPE STRING,
BAS_10 TYPE STRING,
BAS_11 TYPE STRING,
BAS_12 TYPE STRING,
DEP_01 TYPE STRING,
DEP_02 TYPE STRING,
DEP_03 TYPE STRING,
DEP_04 TYPE STRING,
DEP_05 TYPE STRING,
DEP_06 TYPE STRING,
DEP_07 TYPE STRING,
DEP_08 TYPE STRING,
DEP_09 TYPE STRING,
DEP_10 TYPE STRING,
DEP_11 TYPE STRING,
DEP_12 TYPE STRING,
PCTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T77HCP_DPCI_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_V_T77HCP_DPCI_STR-MANDT sy-vline 
WA_V_T77HCP_DPCI_STR-PCONTEXT sy-vline 
WA_V_T77HCP_DPCI_STR-CITEM_BAS sy-vline 
WA_V_T77HCP_DPCI_STR-CITEM_DEP sy-vline 
WA_V_T77HCP_DPCI_STR-SW_TIMEBAS sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_01PREF sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_02PREF sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_03PREF sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_04PREF sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_05PREF sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_06PREF sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_07PREF sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_08PREF sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_09PREF sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_10PREF sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_11PREF sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_12PREF sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_01 sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_02 sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_03 sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_04 sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_05 sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_06 sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_07 sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_08 sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_09 sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_10 sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_11 sy-vline 
WA_V_T77HCP_DPCI_STR-BAS_12 sy-vline 
WA_V_T77HCP_DPCI_STR-DEP_01 sy-vline 
WA_V_T77HCP_DPCI_STR-DEP_02 sy-vline 
WA_V_T77HCP_DPCI_STR-DEP_03 sy-vline 
WA_V_T77HCP_DPCI_STR-DEP_04 sy-vline 
WA_V_T77HCP_DPCI_STR-DEP_05 sy-vline 
WA_V_T77HCP_DPCI_STR-DEP_06 sy-vline 
WA_V_T77HCP_DPCI_STR-DEP_07 sy-vline 
WA_V_T77HCP_DPCI_STR-DEP_08 sy-vline 
WA_V_T77HCP_DPCI_STR-DEP_09 sy-vline 
WA_V_T77HCP_DPCI_STR-DEP_10 sy-vline 
WA_V_T77HCP_DPCI_STR-DEP_11 sy-vline 
WA_V_T77HCP_DPCI_STR-DEP_12 sy-vline 
WA_V_T77HCP_DPCI_STR-PCTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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