ABAP Select data from SAP table FAC_DZWERKS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAC_DZWERKS
*  INTO TABLE @DATA(IT_FAC_DZWERKS2).
*--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_FAC_DZWERKS INDEX 1 INTO DATA(WA_FAC_DZWERKS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAC_DZWERKS>-MANDT = 1.
<FAC_DZWERKS>-COMPANYCODE = 1.
<FAC_DZWERKS>-PLANT = 1.
<FAC_DZWERKS>-SYSTEMCLIENT = 1.
<FAC_DZWERKS>-NAME1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAC_DZWERKS-NAME2, sy-vline,
  WA_FAC_DZWERKS-STREETNAME, sy-vline,
  WA_FAC_DZWERKS-HOUSENUMBER, sy-vline,
  WA_FAC_DZWERKS-HOUSENUMBERSUPPLEMENTTEXT, sy-vline,
  WA_FAC_DZWERKS-POBOX, sy-vline,
  WA_FAC_DZWERKS-CITYNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAC_DZWERKS 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_FAC_DZWERKS 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_FAC_DZWERKS INTO WA_FAC_DZWERKS.


*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 ALPHA, internal->external for field ADDRESSID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAC_DZWERKS-ADDRESSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_DZWERKS-ADDRESSID.
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_FAC_DZWERKS_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
PLANT TYPE STRING,
SYSTEMCLIENT TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
STREETNAME TYPE STRING,
HOUSENUMBER TYPE STRING,
HOUSENUMBERSUPPLEMENTTEXT TYPE STRING,
POBOX TYPE STRING,
CITYNAME TYPE STRING,
DISTRICT TYPE STRING,
REGION TYPE STRING,
POSTALCODE TYPE STRING,
COUNTRY TYPE STRING,
ADDRESSID TYPE STRING,
TAXJURISDICTION TYPE STRING,
DEFAULTPURCHASINGORGANIZATION TYPE STRING,
SALESORGANIZATION TYPE STRING,
PLANTCATEGORY TYPE STRING,
TAXINDICATOR TYPE STRING,
BUSINESSPLACE TYPE STRING,
SHIPPINGPOINT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAC_DZWERKS_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_FAC_DZWERKS_STR-MANDT sy-vline 
WA_FAC_DZWERKS_STR-COMPANYCODE sy-vline 
WA_FAC_DZWERKS_STR-PLANT sy-vline 
WA_FAC_DZWERKS_STR-SYSTEMCLIENT sy-vline 
WA_FAC_DZWERKS_STR-NAME1 sy-vline 
WA_FAC_DZWERKS_STR-NAME2 sy-vline 
WA_FAC_DZWERKS_STR-STREETNAME sy-vline 
WA_FAC_DZWERKS_STR-HOUSENUMBER sy-vline 
WA_FAC_DZWERKS_STR-HOUSENUMBERSUPPLEMENTTEXT sy-vline 
WA_FAC_DZWERKS_STR-POBOX sy-vline 
WA_FAC_DZWERKS_STR-CITYNAME sy-vline 
WA_FAC_DZWERKS_STR-DISTRICT sy-vline 
WA_FAC_DZWERKS_STR-REGION sy-vline 
WA_FAC_DZWERKS_STR-POSTALCODE sy-vline 
WA_FAC_DZWERKS_STR-COUNTRY sy-vline 
WA_FAC_DZWERKS_STR-ADDRESSID sy-vline 
WA_FAC_DZWERKS_STR-TAXJURISDICTION sy-vline 
WA_FAC_DZWERKS_STR-DEFAULTPURCHASINGORGANIZATION sy-vline 
WA_FAC_DZWERKS_STR-SALESORGANIZATION sy-vline 
WA_FAC_DZWERKS_STR-PLANTCATEGORY sy-vline 
WA_FAC_DZWERKS_STR-TAXINDICATOR sy-vline 
WA_FAC_DZWERKS_STR-BUSINESSPLACE sy-vline 
WA_FAC_DZWERKS_STR-SHIPPINGPOINT sy-vline      INTO ld_text SEPARATED BY SPACE.

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