ABAP Select data from SAP table BAPI_RE_PE_CONT_SITE_INTC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_RE_PE_CONT_SITE_INTC
*  INTO TABLE @DATA(IT_BAPI_RE_PE_CONT_SITE_INTC2).
*--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_BAPI_RE_PE_CONT_SITE_INTC INDEX 1 INTO DATA(WA_BAPI_RE_PE_CONT_SITE_INTC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_RE_PE_CONT_SITE_INTC>-CHANGEIND = 1.
<BAPI_RE_PE_CONT_SITE_INTC>-PECSTYPE = 1.
<BAPI_RE_PE_CONT_SITE_INTC>-PESUSPOFDATE = 1.
<BAPI_RE_PE_CONT_SITE_INTC>-PEEXPSUSPOFDATE = 1.
<BAPI_RE_PE_CONT_SITE_INTC>-PEASCERTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_RE_PE_CONT_SITE_INTC-PEEXPASCERTDATE, sy-vline,
  WA_BAPI_RE_PE_CONT_SITE_INTC-PEORDERDATE, sy-vline,
  WA_BAPI_RE_PE_CONT_SITE_INTC-PEEXPORDERDATE, sy-vline,
  WA_BAPI_RE_PE_CONT_SITE_INTC-PEOPENDATE, sy-vline,
  WA_BAPI_RE_PE_CONT_SITE_INTC-PEEXPOPENDATE, sy-vline,
  WA_BAPI_RE_PE_CONT_SITE_INTC-PECLOSEDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_RE_PE_CONT_SITE_INTC 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_BAPI_RE_PE_CONT_SITE_INTC 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_BAPI_RE_PE_CONT_SITE_INTC INTO WA_BAPI_RE_PE_CONT_SITE_INTC.


*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 REDAT, internal->external for field PECLOSEDATE
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_PE_CONT_SITE_INTC-PECLOSEDATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_PE_CONT_SITE_INTC-PECLOSEDATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field PEEXPCLOSEDATE
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_PE_CONT_SITE_INTC-PEEXPCLOSEDATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_PE_CONT_SITE_INTC-PEEXPCLOSEDATE.
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_BAPI_RE_PE_CONT_SITE_INTC_STR, 
CHANGEIND TYPE STRING,
PECSTYPE TYPE STRING,
PESUSPOFDATE TYPE STRING,
PEEXPSUSPOFDATE TYPE STRING,
PEASCERTDATE TYPE STRING,
PEEXPASCERTDATE TYPE STRING,
PEORDERDATE TYPE STRING,
PEEXPORDERDATE TYPE STRING,
PEOPENDATE TYPE STRING,
PEEXPOPENDATE TYPE STRING,
PECLOSEDATE TYPE STRING,
PEEXPCLOSEDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_RE_PE_CONT_SITE_INTC_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_BAPI_RE_PE_CONT_SITE_INTC_STR-CHANGEIND sy-vline 
WA_BAPI_RE_PE_CONT_SITE_INTC_STR-PECSTYPE sy-vline 
WA_BAPI_RE_PE_CONT_SITE_INTC_STR-PESUSPOFDATE sy-vline 
WA_BAPI_RE_PE_CONT_SITE_INTC_STR-PEEXPSUSPOFDATE sy-vline 
WA_BAPI_RE_PE_CONT_SITE_INTC_STR-PEASCERTDATE sy-vline 
WA_BAPI_RE_PE_CONT_SITE_INTC_STR-PEEXPASCERTDATE sy-vline 
WA_BAPI_RE_PE_CONT_SITE_INTC_STR-PEORDERDATE sy-vline 
WA_BAPI_RE_PE_CONT_SITE_INTC_STR-PEEXPORDERDATE sy-vline 
WA_BAPI_RE_PE_CONT_SITE_INTC_STR-PEOPENDATE sy-vline 
WA_BAPI_RE_PE_CONT_SITE_INTC_STR-PEEXPOPENDATE sy-vline 
WA_BAPI_RE_PE_CONT_SITE_INTC_STR-PECLOSEDATE sy-vline 
WA_BAPI_RE_PE_CONT_SITE_INTC_STR-PEEXPCLOSEDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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