ABAP Select data from SAP table /PTGWFI/CIVPARK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PTGWFI/CIVPARK 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 /PTGWFI/CIVPARK. 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 /PTGWFI/CIVPARK 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_/PTGWFI/CIVPARK TYPE STANDARD TABLE OF /PTGWFI/CIVPARK,
      WA_/PTGWFI/CIVPARK TYPE /PTGWFI/CIVPARK,
      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: </PTGWFI/CIVPARK> TYPE /PTGWFI/CIVPARK.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PTGWFI/CIVPARK
  INTO TABLE IT_/PTGWFI/CIVPARK.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PTGWFI/CIVPARK
*  INTO TABLE @DATA(IT_/PTGWFI/CIVPARK2).
*--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_/PTGWFI/CIVPARK INDEX 1 INTO DATA(WA_/PTGWFI/CIVPARK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PTGWFI/CIVPARK ASSIGNING </PTGWFI/CIVPARK>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PTGWFI/CIVPARK>-BUKRS = 1.
</PTGWFI/CIVPARK>-BELNR = 1.
</PTGWFI/CIVPARK>-GJAHR = 1.
</PTGWFI/CIVPARK>-COUNTER = 1.
</PTGWFI/CIVPARK>-PARKRSN = 1.

ENDLOOP.

LOOP AT IT_/PTGWFI/CIVPARK INTO WA_/PTGWFI/CIVPARK.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PTGWFI/CIVPARK-BLDAT, sy-vline,
  WA_/PTGWFI/CIVPARK-BUDAT, sy-vline,
  WA_/PTGWFI/CIVPARK-CPUDT, sy-vline,
  WA_/PTGWFI/CIVPARK-XBLNR, sy-vline,
  WA_/PTGWFI/CIVPARK-WAERS, sy-vline,
  WA_/PTGWFI/CIVPARK-BSTAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PTGWFI/CIVPARK 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_/PTGWFI/CIVPARK 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_/PTGWFI/CIVPARK INTO WA_/PTGWFI/CIVPARK.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PTGWFI/CIVPARK-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PTGWFI/CIVPARK-BELNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_/PTGWFI/CIVPARK-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PTGWFI/CIVPARK-WRBTR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PTGWFI/CIVPARK-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PTGWFI/CIVPARK-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_/PTGWFI/CIVPARK_STR, 
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
COUNTER TYPE STRING,
PARKRSN TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
CPUDT TYPE STRING,
XBLNR TYPE STRING,
WAERS TYPE STRING,
BSTAT TYPE STRING,
WRBTR TYPE STRING,
LIFNR TYPE STRING,
EBELN TYPE STRING,
WERKS TYPE STRING,
ZFBDT TYPE STRING,
ZTERM TYPE STRING,
ZBD3T TYPE STRING,
LAST_ROLE TYPE STRING,
LAST_AGENT TYPE STRING,
CY_TIME_S TYPE STRING,
CY_TIME_F TYPE STRING,
ACTION TYPE STRING,
STATUS TYPE STRING,
LST_WF_ID TYPE STRING,
HDR_TAG TYPE STRING,
FNAME TYPE STRING,
RSNTXT TYPE STRING,
INVSTAT TYPE STRING,
LINSTAT TYPE STRING,
INV_TAG TYPE STRING,
LIN_TAG TYPE STRING,
DUEDAT TYPE STRING,
OVERDUE TYPE STRING,
BAL_DAYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PTGWFI/CIVPARK_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_/PTGWFI/CIVPARK_STR-BUKRS sy-vline 
WA_/PTGWFI/CIVPARK_STR-BELNR sy-vline 
WA_/PTGWFI/CIVPARK_STR-GJAHR sy-vline 
WA_/PTGWFI/CIVPARK_STR-COUNTER sy-vline 
WA_/PTGWFI/CIVPARK_STR-PARKRSN sy-vline 
WA_/PTGWFI/CIVPARK_STR-BLDAT sy-vline 
WA_/PTGWFI/CIVPARK_STR-BUDAT sy-vline 
WA_/PTGWFI/CIVPARK_STR-CPUDT sy-vline 
WA_/PTGWFI/CIVPARK_STR-XBLNR sy-vline 
WA_/PTGWFI/CIVPARK_STR-WAERS sy-vline 
WA_/PTGWFI/CIVPARK_STR-BSTAT sy-vline 
WA_/PTGWFI/CIVPARK_STR-WRBTR sy-vline 
WA_/PTGWFI/CIVPARK_STR-LIFNR sy-vline 
WA_/PTGWFI/CIVPARK_STR-EBELN sy-vline 
WA_/PTGWFI/CIVPARK_STR-WERKS sy-vline 
WA_/PTGWFI/CIVPARK_STR-ZFBDT sy-vline 
WA_/PTGWFI/CIVPARK_STR-ZTERM sy-vline 
WA_/PTGWFI/CIVPARK_STR-ZBD3T sy-vline 
WA_/PTGWFI/CIVPARK_STR-LAST_ROLE sy-vline 
WA_/PTGWFI/CIVPARK_STR-LAST_AGENT sy-vline 
WA_/PTGWFI/CIVPARK_STR-CY_TIME_S sy-vline 
WA_/PTGWFI/CIVPARK_STR-CY_TIME_F sy-vline 
WA_/PTGWFI/CIVPARK_STR-ACTION sy-vline 
WA_/PTGWFI/CIVPARK_STR-STATUS sy-vline 
WA_/PTGWFI/CIVPARK_STR-LST_WF_ID sy-vline 
WA_/PTGWFI/CIVPARK_STR-HDR_TAG sy-vline 
WA_/PTGWFI/CIVPARK_STR-FNAME sy-vline 
WA_/PTGWFI/CIVPARK_STR-RSNTXT sy-vline 
WA_/PTGWFI/CIVPARK_STR-INVSTAT sy-vline 
WA_/PTGWFI/CIVPARK_STR-LINSTAT sy-vline 
WA_/PTGWFI/CIVPARK_STR-INV_TAG sy-vline 
WA_/PTGWFI/CIVPARK_STR-LIN_TAG sy-vline 
WA_/PTGWFI/CIVPARK_STR-DUEDAT sy-vline 
WA_/PTGWFI/CIVPARK_STR-OVERDUE sy-vline 
WA_/PTGWFI/CIVPARK_STR-BAL_DAYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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