ABAP Select data from SAP table P22_EIL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P22_EIL 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 P22_EIL. 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 P22_EIL 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_P22_EIL TYPE STANDARD TABLE OF P22_EIL,
      WA_P22_EIL TYPE P22_EIL,
      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: <P22_EIL> TYPE P22_EIL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P22_EIL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P22_EIL
  INTO TABLE IT_P22_EIL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P22_EIL
*  INTO TABLE @DATA(IT_P22_EIL2).
*--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_P22_EIL INDEX 1 INTO DATA(WA_P22_EIL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P22_EIL ASSIGNING <P22_EIL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P22_EIL>-PERNR = 1.
<P22_EIL>-BUKRS = 1.
<P22_EIL>-WERKS = 1.
<P22_EIL>-BTRTL = 1.
<P22_EIL>-PERSG = 1.

ENDLOOP.

LOOP AT IT_P22_EIL INTO WA_P22_EIL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P22_EIL-PERSK, sy-vline,
  WA_P22_EIL-ABKRS, sy-vline,
  WA_P22_EIL-SIINR, sy-vline,
  WA_P22_EIL-LBINO, sy-vline,
  WA_P22_EIL-ACQDT, sy-vline,
  WA_P22_EIL-NNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P22_EIL 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_P22_EIL 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_P22_EIL INTO WA_P22_EIL.


*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_P22_EIL_STR, 
PERNR TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
ABKRS TYPE STRING,
SIINR TYPE STRING,
LBINO TYPE STRING,
ACQDT TYPE STRING,
NNAME TYPE STRING,
NNAMK TYPE STRING,
GESCH TYPE STRING,
SEXTX TYPE STRING,
GENML TYPE STRING,
GENFM TYPE STRING,
GBDAT TYPE STRING,
GBDAT_ERA01 TYPE STRING,
GBDAT_ERA02 TYPE STRING,
GBDAT_ERA03 TYPE STRING,
GBDAT_ERA04 TYPE STRING,
JGSNM TYPE STRING,
LEADT TYPE STRING,
REALS TYPE STRING,
REALS_TXT TYPE STRING,
CERTI TYPE STRING,
NEWFRM TYPE STRING,
REPMT TYPE STRING,
REPMT_Y TYPE STRING,
REPMT_N TYPE STRING,
ADDI1 TYPE STRING,
ADDI2 TYPE STRING,
ADDIN TYPE STRING,
WOSTD TYPE STRING,
LINE1 TYPE STRING,
LINE2 TYPE STRING,
LINE3 TYPE STRING,
COMNM TYPE STRING,
REPRE TYPE STRING,
TELNR TYPE STRING,
SUBDT TYPE STRING,
MEMO TYPE STRING,
NATIO TYPE STRING,
RES_STAT_DESC TYPE STRING,
EXPID TYPE STRING,
OFLG14 TYPE STRING,
INDND TYPE STRING,
ROMAN TYPE STRING,
HWORK TYPE STRING,
FMEMO TYPE STRING,
KANAN TYPE STRING,
KANJI TYPE STRING,
NNMGE TYPE STRING,
NNMYY TYPE STRING,
NNMMM TYPE STRING,
NNMDD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P22_EIL_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_P22_EIL_STR-PERNR sy-vline 
WA_P22_EIL_STR-BUKRS sy-vline 
WA_P22_EIL_STR-WERKS sy-vline 
WA_P22_EIL_STR-BTRTL sy-vline 
WA_P22_EIL_STR-PERSG sy-vline 
WA_P22_EIL_STR-PERSK sy-vline 
WA_P22_EIL_STR-ABKRS sy-vline 
WA_P22_EIL_STR-SIINR sy-vline 
WA_P22_EIL_STR-LBINO sy-vline 
WA_P22_EIL_STR-ACQDT sy-vline 
WA_P22_EIL_STR-NNAME sy-vline 
WA_P22_EIL_STR-NNAMK sy-vline 
WA_P22_EIL_STR-GESCH sy-vline 
WA_P22_EIL_STR-SEXTX sy-vline 
WA_P22_EIL_STR-GENML sy-vline 
WA_P22_EIL_STR-GENFM sy-vline 
WA_P22_EIL_STR-GBDAT sy-vline 
WA_P22_EIL_STR-GBDAT_ERA01 sy-vline 
WA_P22_EIL_STR-GBDAT_ERA02 sy-vline 
WA_P22_EIL_STR-GBDAT_ERA03 sy-vline 
WA_P22_EIL_STR-GBDAT_ERA04 sy-vline 
WA_P22_EIL_STR-JGSNM sy-vline 
WA_P22_EIL_STR-LEADT sy-vline 
WA_P22_EIL_STR-REALS sy-vline 
WA_P22_EIL_STR-REALS_TXT sy-vline 
WA_P22_EIL_STR-CERTI sy-vline 
WA_P22_EIL_STR-NEWFRM sy-vline 
WA_P22_EIL_STR-REPMT sy-vline 
WA_P22_EIL_STR-REPMT_Y sy-vline 
WA_P22_EIL_STR-REPMT_N sy-vline 
WA_P22_EIL_STR-ADDI1 sy-vline 
WA_P22_EIL_STR-ADDI2 sy-vline 
WA_P22_EIL_STR-ADDIN sy-vline 
WA_P22_EIL_STR-WOSTD sy-vline 
WA_P22_EIL_STR-LINE1 sy-vline 
WA_P22_EIL_STR-LINE2 sy-vline 
WA_P22_EIL_STR-LINE3 sy-vline 
WA_P22_EIL_STR-COMNM sy-vline 
WA_P22_EIL_STR-REPRE sy-vline 
WA_P22_EIL_STR-TELNR sy-vline 
WA_P22_EIL_STR-SUBDT sy-vline 
WA_P22_EIL_STR-MEMO sy-vline 
WA_P22_EIL_STR-NATIO sy-vline 
WA_P22_EIL_STR-RES_STAT_DESC sy-vline 
WA_P22_EIL_STR-EXPID sy-vline 
WA_P22_EIL_STR-OFLG14 sy-vline 
WA_P22_EIL_STR-INDND sy-vline 
WA_P22_EIL_STR-ROMAN sy-vline 
WA_P22_EIL_STR-HWORK sy-vline 
WA_P22_EIL_STR-FMEMO sy-vline 
WA_P22_EIL_STR-KANAN sy-vline 
WA_P22_EIL_STR-KANJI sy-vline 
WA_P22_EIL_STR-NNMGE sy-vline 
WA_P22_EIL_STR-NNMYY sy-vline 
WA_P22_EIL_STR-NNMMM sy-vline 
WA_P22_EIL_STR-NNMDD sy-vline      INTO ld_text SEPARATED BY SPACE.

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