ABAP Select data from SAP table PRCT_COND_SMALL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRCT_COND_SMALL
*  INTO TABLE @DATA(IT_PRCT_COND_SMALL2).
*--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_PRCT_COND_SMALL INDEX 1 INTO DATA(WA_PRCT_COND_SMALL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRCT_COND_SMALL>-KPOSN = 1.
<PRCT_COND_SMALL>-STUNR = 1.
<PRCT_COND_SMALL>-ZAEHK = 1.
<PRCT_COND_SMALL>-KSCHL = 1.
<PRCT_COND_SMALL>-KBETR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRCT_COND_SMALL-WAERS, sy-vline,
  WA_PRCT_COND_SMALL-KPEIN, sy-vline,
  WA_PRCT_COND_SMALL-KMEIN, sy-vline,
  WA_PRCT_COND_SMALL-KWERT, sy-vline,
  WA_PRCT_COND_SMALL-DTASRC, sy-vline,
  WA_PRCT_COND_SMALL-PURP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRCT_COND_SMALL 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_PRCT_COND_SMALL 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_PRCT_COND_SMALL INTO WA_PRCT_COND_SMALL.


*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 CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PRCT_COND_SMALL-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRCT_COND_SMALL-KMEIN.
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_PRCT_COND_SMALL_STR, 
KPOSN TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
KSCHL TYPE STRING,
KBETR TYPE STRING,
WAERS TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
KWERT TYPE STRING,
DTASRC TYPE STRING,
PURP TYPE STRING,
KMPRS TYPE STRING,
KINAK TYPE STRING,
KSTAT TYPE STRING,
KRECH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRCT_COND_SMALL_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_PRCT_COND_SMALL_STR-KPOSN sy-vline 
WA_PRCT_COND_SMALL_STR-STUNR sy-vline 
WA_PRCT_COND_SMALL_STR-ZAEHK sy-vline 
WA_PRCT_COND_SMALL_STR-KSCHL sy-vline 
WA_PRCT_COND_SMALL_STR-KBETR sy-vline 
WA_PRCT_COND_SMALL_STR-WAERS sy-vline 
WA_PRCT_COND_SMALL_STR-KPEIN sy-vline 
WA_PRCT_COND_SMALL_STR-KMEIN sy-vline 
WA_PRCT_COND_SMALL_STR-KWERT sy-vline 
WA_PRCT_COND_SMALL_STR-DTASRC sy-vline 
WA_PRCT_COND_SMALL_STR-PURP sy-vline 
WA_PRCT_COND_SMALL_STR-KMPRS sy-vline 
WA_PRCT_COND_SMALL_STR-KINAK sy-vline 
WA_PRCT_COND_SMALL_STR-KSTAT sy-vline 
WA_PRCT_COND_SMALL_STR-KRECH sy-vline      INTO ld_text SEPARATED BY SPACE.

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