ABAP Select data from SAP table CNVA_PCREA_GRIRO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNVA_PCREA_GRIRO
*  INTO TABLE @DATA(IT_CNVA_PCREA_GRIRO2).
*--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_CNVA_PCREA_GRIRO INDEX 1 INTO DATA(WA_CNVA_PCREA_GRIRO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNVA_PCREA_GRIRO>-MANDT = 1.
<CNVA_PCREA_GRIRO>-PCLPACKID = 1.
<CNVA_PCREA_GRIRO>-BUKRS = 1.
<CNVA_PCREA_GRIRO>-HKONT = 1.
<CNVA_PCREA_GRIRO>-AUGDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNVA_PCREA_GRIRO-AUGBL, sy-vline,
  WA_CNVA_PCREA_GRIRO-ZUONR, sy-vline,
  WA_CNVA_PCREA_GRIRO-GJAHR, sy-vline,
  WA_CNVA_PCREA_GRIRO-BELNR, sy-vline,
  WA_CNVA_PCREA_GRIRO-BUZEI, sy-vline,
  WA_CNVA_PCREA_GRIRO-REORG_STATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNVA_PCREA_GRIRO 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_CNVA_PCREA_GRIRO 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_CNVA_PCREA_GRIRO INTO WA_CNVA_PCREA_GRIRO.


*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 ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNVA_PCREA_GRIRO-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVA_PCREA_GRIRO-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUGBL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNVA_PCREA_GRIRO-AUGBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVA_PCREA_GRIRO-AUGBL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CNVA_PCREA_GRIRO-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVA_PCREA_GRIRO-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNVA_PCREA_GRIRO-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVA_PCREA_GRIRO-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNVA_PCREA_GRIRO-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVA_PCREA_GRIRO-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KO_PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNVA_PCREA_GRIRO-KO_PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVA_PCREA_GRIRO-KO_PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNVA_PCREA_GRIRO-PRCTR1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVA_PCREA_GRIRO-PRCTR1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNVA_PCREA_GRIRO-PRCTR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVA_PCREA_GRIRO-PRCTR2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNVA_PCREA_GRIRO-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVA_PCREA_GRIRO-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNVA_PCREA_GRIRO-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVA_PCREA_GRIRO-EBELN.
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_CNVA_PCREA_GRIRO_STR, 
MANDT TYPE STRING,
PCLPACKID TYPE STRING,
BUKRS TYPE STRING,
HKONT TYPE STRING,
AUGDT TYPE STRING,
AUGBL TYPE STRING,
ZUONR TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
REORG_STATE TYPE STRING,
ZEKKN TYPE STRING,
PRCTR TYPE STRING,
KO_PRCTR TYPE STRING,
PRCTR1 TYPE STRING,
PRCTR2 TYPE STRING,
BUDAT TYPE STRING,
WAERS TYPE STRING,
DMBTR TYPE STRING,
HWAE2 TYPE STRING,
DMBE2 TYPE STRING,
HWAE3 TYPE STRING,
DMBE3 TYPE STRING,
SHKZG TYPE STRING,
KOSTL TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
KNTTP TYPE STRING,
WAERSPO TYPE STRING,
DMBTRPO TYPE STRING,
HWAE2PO TYPE STRING,
DMBE2PO TYPE STRING,
HWAE3PO TYPE STRING,
DMBE3PO TYPE STRING,
WAERSD TYPE STRING,
DMBTRD TYPE STRING,
HWAE2D TYPE STRING,
DMBE2D TYPE STRING,
HWAE3D TYPE STRING,
DMBE3D TYPE STRING,
REFER TYPE STRING,
STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNVA_PCREA_GRIRO_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_CNVA_PCREA_GRIRO_STR-MANDT sy-vline 
WA_CNVA_PCREA_GRIRO_STR-PCLPACKID sy-vline 
WA_CNVA_PCREA_GRIRO_STR-BUKRS sy-vline 
WA_CNVA_PCREA_GRIRO_STR-HKONT sy-vline 
WA_CNVA_PCREA_GRIRO_STR-AUGDT sy-vline 
WA_CNVA_PCREA_GRIRO_STR-AUGBL sy-vline 
WA_CNVA_PCREA_GRIRO_STR-ZUONR sy-vline 
WA_CNVA_PCREA_GRIRO_STR-GJAHR sy-vline 
WA_CNVA_PCREA_GRIRO_STR-BELNR sy-vline 
WA_CNVA_PCREA_GRIRO_STR-BUZEI sy-vline 
WA_CNVA_PCREA_GRIRO_STR-REORG_STATE sy-vline 
WA_CNVA_PCREA_GRIRO_STR-ZEKKN sy-vline 
WA_CNVA_PCREA_GRIRO_STR-PRCTR sy-vline 
WA_CNVA_PCREA_GRIRO_STR-KO_PRCTR sy-vline 
WA_CNVA_PCREA_GRIRO_STR-PRCTR1 sy-vline 
WA_CNVA_PCREA_GRIRO_STR-PRCTR2 sy-vline 
WA_CNVA_PCREA_GRIRO_STR-BUDAT sy-vline 
WA_CNVA_PCREA_GRIRO_STR-WAERS sy-vline 
WA_CNVA_PCREA_GRIRO_STR-DMBTR sy-vline 
WA_CNVA_PCREA_GRIRO_STR-HWAE2 sy-vline 
WA_CNVA_PCREA_GRIRO_STR-DMBE2 sy-vline 
WA_CNVA_PCREA_GRIRO_STR-HWAE3 sy-vline 
WA_CNVA_PCREA_GRIRO_STR-DMBE3 sy-vline 
WA_CNVA_PCREA_GRIRO_STR-SHKZG sy-vline 
WA_CNVA_PCREA_GRIRO_STR-KOSTL sy-vline 
WA_CNVA_PCREA_GRIRO_STR-EBELN sy-vline 
WA_CNVA_PCREA_GRIRO_STR-EBELP sy-vline 
WA_CNVA_PCREA_GRIRO_STR-KNTTP sy-vline 
WA_CNVA_PCREA_GRIRO_STR-WAERSPO sy-vline 
WA_CNVA_PCREA_GRIRO_STR-DMBTRPO sy-vline 
WA_CNVA_PCREA_GRIRO_STR-HWAE2PO sy-vline 
WA_CNVA_PCREA_GRIRO_STR-DMBE2PO sy-vline 
WA_CNVA_PCREA_GRIRO_STR-HWAE3PO sy-vline 
WA_CNVA_PCREA_GRIRO_STR-DMBE3PO sy-vline 
WA_CNVA_PCREA_GRIRO_STR-WAERSD sy-vline 
WA_CNVA_PCREA_GRIRO_STR-DMBTRD sy-vline 
WA_CNVA_PCREA_GRIRO_STR-HWAE2D sy-vline 
WA_CNVA_PCREA_GRIRO_STR-DMBE2D sy-vline 
WA_CNVA_PCREA_GRIRO_STR-HWAE3D sy-vline 
WA_CNVA_PCREA_GRIRO_STR-DMBE3D sy-vline 
WA_CNVA_PCREA_GRIRO_STR-REFER sy-vline 
WA_CNVA_PCREA_GRIRO_STR-STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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