ABAP Select data from SAP table PC2Z250_3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC2Z250_3 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 PC2Z250_3. 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 PC2Z250_3 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_PC2Z250_3 TYPE STANDARD TABLE OF PC2Z250_3,
      WA_PC2Z250_3 TYPE PC2Z250_3,
      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: <PC2Z250_3> TYPE PC2Z250_3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC2Z250_3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC2Z250_3
  INTO TABLE IT_PC2Z250_3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC2Z250_3
*  INTO TABLE @DATA(IT_PC2Z250_32).
*--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_PC2Z250_3 INDEX 1 INTO DATA(WA_PC2Z250_32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC2Z250_3 ASSIGNING <PC2Z250_3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC2Z250_3>-INDIC = 1.
<PC2Z250_3>-REC01 = 1.
<PC2Z250_3>-NBDED = 1.
<PC2Z250_3>-REC02 = 1.
<PC2Z250_3>-TXDED = 1.

ENDLOOP.

LOOP AT IT_PC2Z250_3 INTO WA_PC2Z250_3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC2Z250_3-REC03, sy-vline,
  WA_PC2Z250_3-FBDED, sy-vline,
  WA_PC2Z250_3-REC04, sy-vline,
  WA_PC2Z250_3-NBRTR, sy-vline,
  WA_PC2Z250_3-REC05, sy-vline,
  WA_PC2Z250_3-FMDED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC2Z250_3 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_PC2Z250_3 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_PC2Z250_3 INTO WA_PC2Z250_3.


*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_PC2Z250_3_STR, 
INDIC TYPE STRING,
REC01 TYPE STRING,
NBDED TYPE STRING,
REC02 TYPE STRING,
TXDED TYPE STRING,
REC03 TYPE STRING,
FBDED TYPE STRING,
REC04 TYPE STRING,
NBRTR TYPE STRING,
REC05 TYPE STRING,
FMDED TYPE STRING,
REC06 TYPE STRING,
NBTFM TYPE STRING,
REC07 TYPE STRING,
PERWK TYPE STRING,
REC09 TYPE STRING,
DEDUC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC2Z250_3_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_PC2Z250_3_STR-INDIC sy-vline 
WA_PC2Z250_3_STR-REC01 sy-vline 
WA_PC2Z250_3_STR-NBDED sy-vline 
WA_PC2Z250_3_STR-REC02 sy-vline 
WA_PC2Z250_3_STR-TXDED sy-vline 
WA_PC2Z250_3_STR-REC03 sy-vline 
WA_PC2Z250_3_STR-FBDED sy-vline 
WA_PC2Z250_3_STR-REC04 sy-vline 
WA_PC2Z250_3_STR-NBRTR sy-vline 
WA_PC2Z250_3_STR-REC05 sy-vline 
WA_PC2Z250_3_STR-FMDED sy-vline 
WA_PC2Z250_3_STR-REC06 sy-vline 
WA_PC2Z250_3_STR-NBTFM sy-vline 
WA_PC2Z250_3_STR-REC07 sy-vline 
WA_PC2Z250_3_STR-PERWK sy-vline 
WA_PC2Z250_3_STR-REC09 sy-vline 
WA_PC2Z250_3_STR-DEDUC sy-vline      INTO ld_text SEPARATED BY SPACE.

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