ABAP Select data from SAP table PIQ_NL_MESSAGE34 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PIQ_NL_MESSAGE34 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 PIQ_NL_MESSAGE34. 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 PIQ_NL_MESSAGE34 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_PIQ_NL_MESSAGE34 TYPE STANDARD TABLE OF PIQ_NL_MESSAGE34,
      WA_PIQ_NL_MESSAGE34 TYPE PIQ_NL_MESSAGE34,
      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: <PIQ_NL_MESSAGE34> TYPE PIQ_NL_MESSAGE34.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PIQ_NL_MESSAGE34.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PIQ_NL_MESSAGE34
  INTO TABLE IT_PIQ_NL_MESSAGE34.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQ_NL_MESSAGE34
*  INTO TABLE @DATA(IT_PIQ_NL_MESSAGE342).
*--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_PIQ_NL_MESSAGE34 INDEX 1 INTO DATA(WA_PIQ_NL_MESSAGE342).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PIQ_NL_MESSAGE34 ASSIGNING <PIQ_NL_MESSAGE34>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQ_NL_MESSAGE34>-SOURCE = 1.
<PIQ_NL_MESSAGE34>-MSGID = 1.
<PIQ_NL_MESSAGE34>-SENDER = 1.
<PIQ_NL_MESSAGE34>-RECEIVER = 1.
<PIQ_NL_MESSAGE34>-PROCESSID = 1.

ENDLOOP.

LOOP AT IT_PIQ_NL_MESSAGE34 INTO WA_PIQ_NL_MESSAGE34.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQ_NL_MESSAGE34-FILTERCODE, sy-vline,
  WA_PIQ_NL_MESSAGE34-COMPOSITENAME, sy-vline,
  WA_PIQ_NL_MESSAGE34-FIRSTNAME, sy-vline,
  WA_PIQ_NL_MESSAGE34-NICKNAME, sy-vline,
  WA_PIQ_NL_MESSAGE34-INITIALS, sy-vline,
  WA_PIQ_NL_MESSAGE34-LASTNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQ_NL_MESSAGE34 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_PIQ_NL_MESSAGE34 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_PIQ_NL_MESSAGE34 INTO WA_PIQ_NL_MESSAGE34.


*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 SXIDN, internal->external for field EMAILADDR
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_PIQ_NL_MESSAGE34-EMAILADDR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQ_NL_MESSAGE34-EMAILADDR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field DOB
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PIQ_NL_MESSAGE34-DOB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQ_NL_MESSAGE34-DOB.
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_PIQ_NL_MESSAGE34_STR, 
SOURCE TYPE STRING,
MSGID TYPE STRING,
SENDER TYPE STRING,
RECEIVER TYPE STRING,
PROCESSID TYPE STRING,
FILTERCODE TYPE STRING,
COMPOSITENAME TYPE STRING,
FIRSTNAME TYPE STRING,
NICKNAME TYPE STRING,
INITIALS TYPE STRING,
LASTNAME TYPE STRING,
INFIX TYPE STRING,
GBAADDRESS TYPE STRING,
COUNTRYNO TYPE STRING,
TELEPHONENO TYPE STRING,
MOBILENO TYPE STRING,
EMAILADDR TYPE STRING,
GENDER TYPE STRING,
DOB TYPE STRING,
COUNTRYOFBIRTH TYPE STRING,
MOBILECTYCODE TYPE STRING,
FOREIGNADDRESS TYPE STRING,
BIRTHPLACE TYPE STRING,
BIRTHDATEUNKNOWN TYPE STRING,
NATIONALITY TYPE STRING,
NATIONALITY2 TYPE STRING,
STATOFCONSENT TYPE STRING,
LANGUAGE TYPE STRING,
O_NUMBER TYPE STRING,
SL_NUMBER TYPE STRING,
OCW_NUMBER TYPE STRING,
SIS_NUMBER TYPE STRING,
SSN_NUMBER TYPE STRING,
VERIFIEDSTATUS TYPE STRING,
SIGNALCODE TYPE STRING,
VERIFICATIONDATE TYPE STRING,
IDENTITYTYPE TYPE STRING,
IDENTITYPROOF TYPE STRING,
VERIFIEDBRIN TYPE STRING,
VERIFIEDINST TYPE STRING,
EMPLOYEE TYPE STRING,
VERIFY_COMMENT TYPE STRING,
PREEDUCATIONBLOCK TYPE STRING,
DATEOFENROLLMENT TYPE STRING,
STATUS TYPE STRING,
PROGCODE TYPE STRING,
ALTPROGCODE TYPE STRING,
BRINNUMBER TYPE STRING,
BRINSEQUENCE TYPE STRING,
FORMOFEDUCATION TYPE STRING,
LOCATIONEDU TYPE STRING,
EDUPHASECODE TYPE STRING,
ENROLLFORMCODE TYPE STRING,
YEAROFSTUDY TYPE STRING,
STARTMONTH TYPE STRING,
ENROLLMENTCODE TYPE STRING,
REGNUM TYPE STRING,
UPDATED_REGNUM TYPE STRING,
FIRSTYEAR TYPE STRING,
COMPREQSTATUS TYPE STRING,
ACTIVITIESSTATUS TYPE STRING,
LANGUAGETEST TYPE STRING,
DEFICIENCYSTATUS TYPE STRING,
PAIDBY TYPE STRING,
PAYMENTTYPE TYPE STRING,
PAYMENTNAME TYPE STRING,
ADR_KIND_BILL TYPE STRING,
STREET_BLK TYPE STRING,
LOCATION_BLK TYPE STRING,
HOUSENUMBERREF_BLK TYPE STRING,
HOUSENUMBER_BLK TYPE STRING,
HOUSENUMBERADD_BLK TYPE STRING,
ZIPCODE_BLK TYPE STRING,
ZIPCHECKCORR_BLK TYPE STRING,
CITY_BLK TYPE STRING,
COUNTRY_BLK TYPE STRING,
ADR_KIND_FOR TYPE STRING,
LINE1_FOR TYPE STRING,
LINE2_FOR TYPE STRING,
LINE3_FOR TYPE STRING,
COUNTRY_FOR TYPE STRING,
PAYMENTBANKGBA TYPE STRING,
PAYMENTBANKFORE TYPE STRING,
BANK TYPE STRING,
BANKCOUNTRY TYPE STRING,
INSTALLMENTS TYPE STRING,
PAID TYPE STRING,
AMOUNTFEE TYPE STRING,
LOTTERY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQ_NL_MESSAGE34_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_PIQ_NL_MESSAGE34_STR-SOURCE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-MSGID sy-vline 
WA_PIQ_NL_MESSAGE34_STR-SENDER sy-vline 
WA_PIQ_NL_MESSAGE34_STR-RECEIVER sy-vline 
WA_PIQ_NL_MESSAGE34_STR-PROCESSID sy-vline 
WA_PIQ_NL_MESSAGE34_STR-FILTERCODE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-COMPOSITENAME sy-vline 
WA_PIQ_NL_MESSAGE34_STR-FIRSTNAME sy-vline 
WA_PIQ_NL_MESSAGE34_STR-NICKNAME sy-vline 
WA_PIQ_NL_MESSAGE34_STR-INITIALS sy-vline 
WA_PIQ_NL_MESSAGE34_STR-LASTNAME sy-vline 
WA_PIQ_NL_MESSAGE34_STR-INFIX sy-vline 
WA_PIQ_NL_MESSAGE34_STR-GBAADDRESS sy-vline 
WA_PIQ_NL_MESSAGE34_STR-COUNTRYNO sy-vline 
WA_PIQ_NL_MESSAGE34_STR-TELEPHONENO sy-vline 
WA_PIQ_NL_MESSAGE34_STR-MOBILENO sy-vline 
WA_PIQ_NL_MESSAGE34_STR-EMAILADDR sy-vline 
WA_PIQ_NL_MESSAGE34_STR-GENDER sy-vline 
WA_PIQ_NL_MESSAGE34_STR-DOB sy-vline 
WA_PIQ_NL_MESSAGE34_STR-COUNTRYOFBIRTH sy-vline 
WA_PIQ_NL_MESSAGE34_STR-MOBILECTYCODE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-FOREIGNADDRESS sy-vline 
WA_PIQ_NL_MESSAGE34_STR-BIRTHPLACE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-BIRTHDATEUNKNOWN sy-vline 
WA_PIQ_NL_MESSAGE34_STR-NATIONALITY sy-vline 
WA_PIQ_NL_MESSAGE34_STR-NATIONALITY2 sy-vline 
WA_PIQ_NL_MESSAGE34_STR-STATOFCONSENT sy-vline 
WA_PIQ_NL_MESSAGE34_STR-LANGUAGE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-O_NUMBER sy-vline 
WA_PIQ_NL_MESSAGE34_STR-SL_NUMBER sy-vline 
WA_PIQ_NL_MESSAGE34_STR-OCW_NUMBER sy-vline 
WA_PIQ_NL_MESSAGE34_STR-SIS_NUMBER sy-vline 
WA_PIQ_NL_MESSAGE34_STR-SSN_NUMBER sy-vline 
WA_PIQ_NL_MESSAGE34_STR-VERIFIEDSTATUS sy-vline 
WA_PIQ_NL_MESSAGE34_STR-SIGNALCODE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-VERIFICATIONDATE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-IDENTITYTYPE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-IDENTITYPROOF sy-vline 
WA_PIQ_NL_MESSAGE34_STR-VERIFIEDBRIN sy-vline 
WA_PIQ_NL_MESSAGE34_STR-VERIFIEDINST sy-vline 
WA_PIQ_NL_MESSAGE34_STR-EMPLOYEE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-VERIFY_COMMENT sy-vline 
WA_PIQ_NL_MESSAGE34_STR-PREEDUCATIONBLOCK sy-vline 
WA_PIQ_NL_MESSAGE34_STR-DATEOFENROLLMENT sy-vline 
WA_PIQ_NL_MESSAGE34_STR-STATUS sy-vline 
WA_PIQ_NL_MESSAGE34_STR-PROGCODE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-ALTPROGCODE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-BRINNUMBER sy-vline 
WA_PIQ_NL_MESSAGE34_STR-BRINSEQUENCE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-FORMOFEDUCATION sy-vline 
WA_PIQ_NL_MESSAGE34_STR-LOCATIONEDU sy-vline 
WA_PIQ_NL_MESSAGE34_STR-EDUPHASECODE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-ENROLLFORMCODE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-YEAROFSTUDY sy-vline 
WA_PIQ_NL_MESSAGE34_STR-STARTMONTH sy-vline 
WA_PIQ_NL_MESSAGE34_STR-ENROLLMENTCODE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-REGNUM sy-vline 
WA_PIQ_NL_MESSAGE34_STR-UPDATED_REGNUM sy-vline 
WA_PIQ_NL_MESSAGE34_STR-FIRSTYEAR sy-vline 
WA_PIQ_NL_MESSAGE34_STR-COMPREQSTATUS sy-vline 
WA_PIQ_NL_MESSAGE34_STR-ACTIVITIESSTATUS sy-vline 
WA_PIQ_NL_MESSAGE34_STR-LANGUAGETEST sy-vline 
WA_PIQ_NL_MESSAGE34_STR-DEFICIENCYSTATUS sy-vline 
WA_PIQ_NL_MESSAGE34_STR-PAIDBY sy-vline 
WA_PIQ_NL_MESSAGE34_STR-PAYMENTTYPE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-PAYMENTNAME sy-vline 
WA_PIQ_NL_MESSAGE34_STR-ADR_KIND_BILL sy-vline 
WA_PIQ_NL_MESSAGE34_STR-STREET_BLK sy-vline 
WA_PIQ_NL_MESSAGE34_STR-LOCATION_BLK sy-vline 
WA_PIQ_NL_MESSAGE34_STR-HOUSENUMBERREF_BLK sy-vline 
WA_PIQ_NL_MESSAGE34_STR-HOUSENUMBER_BLK sy-vline 
WA_PIQ_NL_MESSAGE34_STR-HOUSENUMBERADD_BLK sy-vline 
WA_PIQ_NL_MESSAGE34_STR-ZIPCODE_BLK sy-vline 
WA_PIQ_NL_MESSAGE34_STR-ZIPCHECKCORR_BLK sy-vline 
WA_PIQ_NL_MESSAGE34_STR-CITY_BLK sy-vline 
WA_PIQ_NL_MESSAGE34_STR-COUNTRY_BLK sy-vline 
WA_PIQ_NL_MESSAGE34_STR-ADR_KIND_FOR sy-vline 
WA_PIQ_NL_MESSAGE34_STR-LINE1_FOR sy-vline 
WA_PIQ_NL_MESSAGE34_STR-LINE2_FOR sy-vline 
WA_PIQ_NL_MESSAGE34_STR-LINE3_FOR sy-vline 
WA_PIQ_NL_MESSAGE34_STR-COUNTRY_FOR sy-vline 
WA_PIQ_NL_MESSAGE34_STR-PAYMENTBANKGBA sy-vline 
WA_PIQ_NL_MESSAGE34_STR-PAYMENTBANKFORE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-BANK sy-vline 
WA_PIQ_NL_MESSAGE34_STR-BANKCOUNTRY sy-vline 
WA_PIQ_NL_MESSAGE34_STR-INSTALLMENTS sy-vline 
WA_PIQ_NL_MESSAGE34_STR-PAID sy-vline 
WA_PIQ_NL_MESSAGE34_STR-AMOUNTFEE sy-vline 
WA_PIQ_NL_MESSAGE34_STR-LOTTERY sy-vline      INTO ld_text SEPARATED BY SPACE.

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