ABAP Select data from SAP table P3422 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P3422 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 P3422. 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 P3422 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_P3422 TYPE STANDARD TABLE OF P3422,
      WA_P3422 TYPE P3422,
      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: <P3422> TYPE P3422.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P3422.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P3422
  INTO TABLE IT_P3422.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P3422
*  INTO TABLE @DATA(IT_P34222).
*--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_P3422 INDEX 1 INTO DATA(WA_P34222).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P3422 ASSIGNING <P3422>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P3422>-PERNR = 1.
<P3422>-INFTY = 1.
<P3422>-SUBTY = 1.
<P3422>-OBJPS = 1.
<P3422>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P3422 INTO WA_P3422.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P3422-ENDDA, sy-vline,
  WA_P3422-BEGDA, sy-vline,
  WA_P3422-SEQNR, sy-vline,
  WA_P3422-AEDTM, sy-vline,
  WA_P3422-UNAME, sy-vline,
  WA_P3422-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P3422 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_P3422 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_P3422 INTO WA_P3422.


*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 PDATE, internal->external for field FGBDT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_P3422-FGBDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3422-FGBDT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field FGBD2
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_P3422-FGBD2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3422-FGBD2.
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_P3422_STR, 
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
DEDTY TYPE STRING,
DEDSC TYPE STRING,
RATIO TYPE STRING,
FANAM TYPE STRING,
FAVOR TYPE STRING,
ICTYP TYPE STRING,
ICNUM TYPE STRING,
DEAMT TYPE STRING,
FGBDT TYPE STRING,
FASEX TYPE STRING,
EDUST TYPE STRING,
CONNO TYPE STRING,
OLCHD TYPE STRING,
FAMTP TYPE STRING,
WAERS TYPE STRING,
WCITY TYPE STRING,
TEXT1 TYPE STRING,
TEXT2 TYPE STRING,
SUB21 TYPE STRING,
OBJ21 TYPE STRING,
CEDST TYPE STRING,
EDUTY TYPE STRING,
CERNO TYPE STRING,
CERNM TYPE STRING,
ISSAU TYPE STRING,
ISSDT TYPE STRING,
FANAT TYPE STRING,
RENTY TYPE STRING,
LOCAT TYPE STRING,
BEPER TYPE STRING,
ENPER TYPE STRING,
TEPER TYPE STRING,
SLAND TYPE STRING,
LLNAM TYPE STRING,
PROVI TYPE STRING,
BRRWR TYPE STRING,
HCTYP TYPE STRING,
LNTY1 TYPE STRING,
BANK1 TYPE STRING,
CTNO1 TYPE STRING,
LBEG1 TYPE STRING,
LMON1 TYPE STRING,
LNTY2 TYPE STRING,
BANK2 TYPE STRING,
CTNO2 TYPE STRING,
LBEG2 TYPE STRING,
LMON2 TYPE STRING,
DISME TYPE STRING,
INSTI TYPE STRING,
FANM2 TYPE STRING,
FAVO2 TYPE STRING,
ICTY2 TYPE STRING,
ICNM2 TYPE STRING,
FGBD2 TYPE STRING,
FANA2 TYPE STRING,
FMTP2 TYPE STRING,
SU221 TYPE STRING,
OB221 TYPE STRING,
NAM01 TYPE STRING,
ICT01 TYPE STRING,
ICN01 TYPE STRING,
NAT01 TYPE STRING,
NAM02 TYPE STRING,
ICT02 TYPE STRING,
ICN02 TYPE STRING,
NAT02 TYPE STRING,
NAM03 TYPE STRING,
ICT03 TYPE STRING,
ICN03 TYPE STRING,
NAT03 TYPE STRING,
NAM04 TYPE STRING,
ICT04 TYPE STRING,
ICN04 TYPE STRING,
NAT04 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P3422_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_P3422_STR-PERNR sy-vline 
WA_P3422_STR-INFTY sy-vline 
WA_P3422_STR-SUBTY sy-vline 
WA_P3422_STR-OBJPS sy-vline 
WA_P3422_STR-SPRPS sy-vline 
WA_P3422_STR-ENDDA sy-vline 
WA_P3422_STR-BEGDA sy-vline 
WA_P3422_STR-SEQNR sy-vline 
WA_P3422_STR-AEDTM sy-vline 
WA_P3422_STR-UNAME sy-vline 
WA_P3422_STR-HISTO sy-vline 
WA_P3422_STR-ITXEX sy-vline 
WA_P3422_STR-REFEX sy-vline 
WA_P3422_STR-ORDEX sy-vline 
WA_P3422_STR-ITBLD sy-vline 
WA_P3422_STR-PREAS sy-vline 
WA_P3422_STR-FLAG1 sy-vline 
WA_P3422_STR-FLAG2 sy-vline 
WA_P3422_STR-FLAG3 sy-vline 
WA_P3422_STR-FLAG4 sy-vline 
WA_P3422_STR-RESE1 sy-vline 
WA_P3422_STR-RESE2 sy-vline 
WA_P3422_STR-GRPVL sy-vline 
WA_P3422_STR-DEDTY sy-vline 
WA_P3422_STR-DEDSC sy-vline 
WA_P3422_STR-RATIO sy-vline 
WA_P3422_STR-FANAM sy-vline 
WA_P3422_STR-FAVOR sy-vline 
WA_P3422_STR-ICTYP sy-vline 
WA_P3422_STR-ICNUM sy-vline 
WA_P3422_STR-DEAMT sy-vline 
WA_P3422_STR-FGBDT sy-vline 
WA_P3422_STR-FASEX sy-vline 
WA_P3422_STR-EDUST sy-vline 
WA_P3422_STR-CONNO sy-vline 
WA_P3422_STR-OLCHD sy-vline 
WA_P3422_STR-FAMTP sy-vline 
WA_P3422_STR-WAERS sy-vline 
WA_P3422_STR-WCITY sy-vline 
WA_P3422_STR-TEXT1 sy-vline 
WA_P3422_STR-TEXT2 sy-vline 
WA_P3422_STR-SUB21 sy-vline 
WA_P3422_STR-OBJ21 sy-vline 
WA_P3422_STR-CEDST sy-vline 
WA_P3422_STR-EDUTY sy-vline 
WA_P3422_STR-CERNO sy-vline 
WA_P3422_STR-CERNM sy-vline 
WA_P3422_STR-ISSAU sy-vline 
WA_P3422_STR-ISSDT sy-vline 
WA_P3422_STR-FANAT sy-vline 
WA_P3422_STR-RENTY sy-vline 
WA_P3422_STR-LOCAT sy-vline 
WA_P3422_STR-BEPER sy-vline 
WA_P3422_STR-ENPER sy-vline 
WA_P3422_STR-TEPER sy-vline 
WA_P3422_STR-SLAND sy-vline 
WA_P3422_STR-LLNAM sy-vline 
WA_P3422_STR-PROVI sy-vline 
WA_P3422_STR-BRRWR sy-vline 
WA_P3422_STR-HCTYP sy-vline 
WA_P3422_STR-LNTY1 sy-vline 
WA_P3422_STR-BANK1 sy-vline 
WA_P3422_STR-CTNO1 sy-vline 
WA_P3422_STR-LBEG1 sy-vline 
WA_P3422_STR-LMON1 sy-vline 
WA_P3422_STR-LNTY2 sy-vline 
WA_P3422_STR-BANK2 sy-vline 
WA_P3422_STR-CTNO2 sy-vline 
WA_P3422_STR-LBEG2 sy-vline 
WA_P3422_STR-LMON2 sy-vline 
WA_P3422_STR-DISME sy-vline 
WA_P3422_STR-INSTI sy-vline 
WA_P3422_STR-FANM2 sy-vline 
WA_P3422_STR-FAVO2 sy-vline 
WA_P3422_STR-ICTY2 sy-vline 
WA_P3422_STR-ICNM2 sy-vline 
WA_P3422_STR-FGBD2 sy-vline 
WA_P3422_STR-FANA2 sy-vline 
WA_P3422_STR-FMTP2 sy-vline 
WA_P3422_STR-SU221 sy-vline 
WA_P3422_STR-OB221 sy-vline 
WA_P3422_STR-NAM01 sy-vline 
WA_P3422_STR-ICT01 sy-vline 
WA_P3422_STR-ICN01 sy-vline 
WA_P3422_STR-NAT01 sy-vline 
WA_P3422_STR-NAM02 sy-vline 
WA_P3422_STR-ICT02 sy-vline 
WA_P3422_STR-ICN02 sy-vline 
WA_P3422_STR-NAT02 sy-vline 
WA_P3422_STR-NAM03 sy-vline 
WA_P3422_STR-ICT03 sy-vline 
WA_P3422_STR-ICN03 sy-vline 
WA_P3422_STR-NAT03 sy-vline 
WA_P3422_STR-NAM04 sy-vline 
WA_P3422_STR-ICT04 sy-vline 
WA_P3422_STR-ICN04 sy-vline 
WA_P3422_STR-NAT04 sy-vline      INTO ld_text SEPARATED BY SPACE.

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