ABAP Select data from SAP table QPCPC_SELRANGE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QPCPC_SELRANGE
*  INTO TABLE @DATA(IT_QPCPC_SELRANGE2).
*--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_QPCPC_SELRANGE INDEX 1 INTO DATA(WA_QPCPC_SELRANGE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QPCPC_SELRANGE>-CLIENT = 1.
<QPCPC_SELRANGE>-STRUCTYPE = 1.
<QPCPC_SELRANGE>-OBJTYPE = 1.
<QPCPC_SELRANGE>-PROCTYPE = 1.
<QPCPC_SELRANGE>-OBJ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QPCPC_SELRANGE-SELFIELD, sy-vline,
  WA_QPCPC_SELRANGE-SELRANGE, sy-vline,
  WA_QPCPC_SELRANGE-SELSUBST, sy-vline,
  WA_QPCPC_SELRANGE-SIGN, sy-vline,
  WA_QPCPC_SELRANGE-SELOPTION, sy-vline,
  WA_QPCPC_SELRANGE-LOW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QPCPC_SELRANGE 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_QPCPC_SELRANGE 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_QPCPC_SELRANGE INTO WA_QPCPC_SELRANGE.


*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_QPCPC_SELRANGE_STR, 
CLIENT TYPE STRING,
STRUCTYPE TYPE STRING,
OBJTYPE TYPE STRING,
PROCTYPE TYPE STRING,
OBJ TYPE STRING,
SELFIELD TYPE STRING,
SELRANGE TYPE STRING,
SELSUBST TYPE STRING,
SIGN TYPE STRING,
SELOPTION TYPE STRING,
LOW TYPE STRING,
HIGH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QPCPC_SELRANGE_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_QPCPC_SELRANGE_STR-CLIENT sy-vline 
WA_QPCPC_SELRANGE_STR-STRUCTYPE sy-vline 
WA_QPCPC_SELRANGE_STR-OBJTYPE sy-vline 
WA_QPCPC_SELRANGE_STR-PROCTYPE sy-vline 
WA_QPCPC_SELRANGE_STR-OBJ sy-vline 
WA_QPCPC_SELRANGE_STR-SELFIELD sy-vline 
WA_QPCPC_SELRANGE_STR-SELRANGE sy-vline 
WA_QPCPC_SELRANGE_STR-SELSUBST sy-vline 
WA_QPCPC_SELRANGE_STR-SIGN sy-vline 
WA_QPCPC_SELRANGE_STR-SELOPTION sy-vline 
WA_QPCPC_SELRANGE_STR-LOW sy-vline 
WA_QPCPC_SELRANGE_STR-HIGH sy-vline      INTO ld_text SEPARATED BY SPACE.

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