ABAP Select data from SAP table P05EIR_WAZO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P05EIR_WAZO 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 P05EIR_WAZO. 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 P05EIR_WAZO 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_P05EIR_WAZO TYPE STANDARD TABLE OF P05EIR_WAZO,
      WA_P05EIR_WAZO TYPE P05EIR_WAZO,
      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: <P05EIR_WAZO> TYPE P05EIR_WAZO.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P05EIR_WAZO.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P05EIR_WAZO
  INTO TABLE IT_P05EIR_WAZO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P05EIR_WAZO
*  INTO TABLE @DATA(IT_P05EIR_WAZO2).
*--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_P05EIR_WAZO INDEX 1 INTO DATA(WA_P05EIR_WAZO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P05EIR_WAZO ASSIGNING <P05EIR_WAZO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P05EIR_WAZO>-MANDT = 1.
<P05EIR_WAZO>-FYEAR = 1.
<P05EIR_WAZO>-MSGNO = 1.
<P05EIR_WAZO>-DIPAY = 1.
<P05EIR_WAZO>-CRGAW = 1.

ENDLOOP.

LOOP AT IT_P05EIR_WAZO INTO WA_P05EIR_WAZO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P05EIR_WAZO-BEGDA, sy-vline,
  WA_P05EIR_WAZO-SPSIT, sy-vline,
  WA_P05EIR_WAZO-VEBDT, sy-vline,
  WA_P05EIR_WAZO-CHBDAT, sy-vline,
  WA_P05EIR_WAZO-NWEEKS, sy-vline,
  WA_P05EIR_WAZO-STUSED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P05EIR_WAZO 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_P05EIR_WAZO 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_P05EIR_WAZO INTO WA_P05EIR_WAZO.


*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 FYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_P05EIR_WAZO-FYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P05EIR_WAZO-FYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field CHBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_P05EIR_WAZO-CHBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P05EIR_WAZO-CHBDAT.
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_P05EIR_WAZO_STR, 
MANDT TYPE STRING,
FYEAR TYPE STRING,
MSGNO TYPE STRING,
DIPAY TYPE STRING,
CRGAW TYPE STRING,
BEGDA TYPE STRING,
SPSIT TYPE STRING,
VEBDT TYPE STRING,
CHBDAT TYPE STRING,
NWEEKS TYPE STRING,
STUSED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P05EIR_WAZO_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_P05EIR_WAZO_STR-MANDT sy-vline 
WA_P05EIR_WAZO_STR-FYEAR sy-vline 
WA_P05EIR_WAZO_STR-MSGNO sy-vline 
WA_P05EIR_WAZO_STR-DIPAY sy-vline 
WA_P05EIR_WAZO_STR-CRGAW sy-vline 
WA_P05EIR_WAZO_STR-BEGDA sy-vline 
WA_P05EIR_WAZO_STR-SPSIT sy-vline 
WA_P05EIR_WAZO_STR-VEBDT sy-vline 
WA_P05EIR_WAZO_STR-CHBDAT sy-vline 
WA_P05EIR_WAZO_STR-NWEEKS sy-vline 
WA_P05EIR_WAZO_STR-STUSED sy-vline      INTO ld_text SEPARATED BY SPACE.

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