ABAP Select data from SAP table P02_GETIS_ER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P02_GETIS_ER 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 P02_GETIS_ER. 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 P02_GETIS_ER 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_P02_GETIS_ER TYPE STANDARD TABLE OF P02_GETIS_ER,
      WA_P02_GETIS_ER TYPE P02_GETIS_ER,
      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: <P02_GETIS_ER> TYPE P02_GETIS_ER.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P02_GETIS_ER.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P02_GETIS_ER
  INTO TABLE IT_P02_GETIS_ER.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P02_GETIS_ER
*  INTO TABLE @DATA(IT_P02_GETIS_ER2).
*--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_P02_GETIS_ER INDEX 1 INTO DATA(WA_P02_GETIS_ER2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P02_GETIS_ER ASSIGNING <P02_GETIS_ER>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P02_GETIS_ER>-ABRNR = 1.
<P02_GETIS_ER>-SWERR = 1.
<P02_GETIS_ER>-CDACT = 1.
<P02_GETIS_ER>-FNAME = 1.
<P02_GETIS_ER>-STRAS = 1.

ENDLOOP.

LOOP AT IT_P02_GETIS_ER INTO WA_P02_GETIS_ER.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P02_GETIS_ER-HSNR, sy-vline,
  WA_P02_GETIS_ER-CP, sy-vline,
  WA_P02_GETIS_ER-PSTLZ, sy-vline,
  WA_P02_GETIS_ER-PACA, sy-vline,
  WA_P02_GETIS_ER-LOCCG, sy-vline,
  WA_P02_GETIS_ER-LOCHG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P02_GETIS_ER 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_P02_GETIS_ER 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_P02_GETIS_ER INTO WA_P02_GETIS_ER.


*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 GJAHR, internal->external for field TAX_PERIOD
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_P02_GETIS_ER-TAX_PERIOD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P02_GETIS_ER-TAX_PERIOD.
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_P02_GETIS_ER_STR, 
ABRNR TYPE STRING,
SWERR TYPE STRING,
CDACT TYPE STRING,
FNAME TYPE STRING,
STRAS TYPE STRING,
HSNR TYPE STRING,
CP TYPE STRING,
PSTLZ TYPE STRING,
PACA TYPE STRING,
LOCCG TYPE STRING,
LOCHG TYPE STRING,
TAX_PERIOD TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
PRIDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P02_GETIS_ER_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_P02_GETIS_ER_STR-ABRNR sy-vline 
WA_P02_GETIS_ER_STR-SWERR sy-vline 
WA_P02_GETIS_ER_STR-CDACT sy-vline 
WA_P02_GETIS_ER_STR-FNAME sy-vline 
WA_P02_GETIS_ER_STR-STRAS sy-vline 
WA_P02_GETIS_ER_STR-HSNR sy-vline 
WA_P02_GETIS_ER_STR-CP sy-vline 
WA_P02_GETIS_ER_STR-PSTLZ sy-vline 
WA_P02_GETIS_ER_STR-PACA sy-vline 
WA_P02_GETIS_ER_STR-LOCCG sy-vline 
WA_P02_GETIS_ER_STR-LOCHG sy-vline 
WA_P02_GETIS_ER_STR-TAX_PERIOD sy-vline 
WA_P02_GETIS_ER_STR-BEGDA sy-vline 
WA_P02_GETIS_ER_STR-ENDDA sy-vline 
WA_P02_GETIS_ER_STR-PRIDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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