ABAP Select data from SAP table SWW_WIDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SWW_WIDATA
*  INTO TABLE @DATA(IT_SWW_WIDATA2).
*--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_SWW_WIDATA INDEX 1 INTO DATA(WA_SWW_WIDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SWW_WIDATA>-HEADER = 1.
<SWW_WIDATA>-CLIENT = 1.
<SWW_WIDATA>-WI_ID = 1.
<SWW_WIDATA>-WI_TYPE = 1.
<SWW_WIDATA>-WI_CREATOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SWW_WIDATA-WI_LANG, sy-vline,
  WA_SWW_WIDATA-WI_TEXT, sy-vline,
  WA_SWW_WIDATA-WI_RHTEXT, sy-vline,
  WA_SWW_WIDATA-WI_STAT, sy-vline,
  WA_SWW_WIDATA-WI_CD, sy-vline,
  WA_SWW_WIDATA-WI_CT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SWW_WIDATA 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_SWW_WIDATA 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_SWW_WIDATA INTO WA_SWW_WIDATA.


*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 ISOLA, internal->external for field WI_LANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SWW_WIDATA-WI_LANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SWW_WIDATA-WI_LANG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TCLASS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SWW_WIDATA-TCLASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SWW_WIDATA-TCLASS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REMOTE_SYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SWW_WIDATA-REMOTE_SYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SWW_WIDATA-REMOTE_SYS.
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_SWW_WIDATA_STR, 
HEADER TYPE STRING,
CLIENT TYPE STRING,
WI_ID TYPE STRING,
WI_TYPE TYPE STRING,
WI_CREATOR TYPE STRING,
WI_LANG TYPE STRING,
WI_TEXT TYPE STRING,
WI_RHTEXT TYPE STRING,
WI_STAT TYPE STRING,
WI_CD TYPE STRING,
WI_CT TYPE STRING,
WI_AED TYPE STRING,
WI_AAGENT TYPE STRING,
WI_AADDR TYPE STRING,
WI_CRUSER TYPE STRING,
WI_CRADDR TYPE STRING,
WI_CHCKWI TYPE STRING,
WI_CBFB TYPE STRING,
WI_RH_TASK TYPE STRING,
WI_PRIO TYPE STRING,
WI_CONFIRM TYPE STRING,
WI_COMP_EV TYPE STRING,
WI_FORW_BY TYPE STRING,
WI_DISABLE TYPE STRING,
WI_REJECT TYPE STRING,
TCLASS TYPE STRING,
NOTE_EXIST TYPE STRING,
NOTIFY TYPE STRING,
RETRY_CNT TYPE STRING,
MAX_RETRY TYPE STRING,
RC_MODELED TYPE STRING,
CB_DONE TYPE STRING,
HANDLE TYPE STRING,
SYNCCHAIN TYPE STRING,
NO_DEADL TYPE STRING,
WI_DH_STAT TYPE STRING,
WI_RELEASE TYPE STRING,
WLC_DISPL TYPE STRING,
WI_RESTLOG TYPE STRING,
REMOTE_ID TYPE STRING,
REMOTE_SYS TYPE STRING,
STATUS_EVT TYPE STRING,
TIMEOUT TYPE STRING,
WF_TYPE TYPE STRING,
WLC_FLAGS TYPE STRING,
XMLPROT TYPE STRING,
WAIT4CB TYPE STRING,
TOP_WI_ID TYPE STRING,
DEF_GUID TYPE STRING,
EXEC_TIME TYPE STRING,
NOTE_COUNT TYPE STRING,
PRS_PROFIL TYPE STRING,
CREA_TMP TYPE STRING,
CHECK_STAT TYPE STRING,
BLOCKTYPE TYPE STRING,
PARENT_WI TYPE STRING,
RNDNUMBER TYPE STRING,
WFD_ID TYPE STRING,
WFD_VERSION TYPE STRING,
WFD_EXETYP TYPE STRING,
PROCCAT TYPE STRING,
TOP_TASK TYPE STRING,
AGING_STATE TYPE STRING,
AGING_TEMPERATURE TYPE STRING,
WLC_FLAGS_EXT TYPE STRING,
WI_AED_TIMESTAMP TYPE STRING,
REFERENCE_NODEID TYPE STRING,
STEP_ID TYPE STRING,
AGENT_RULE_ID TYPE STRING,
WI_TEXT_ID TYPE STRING,
CPWF_HANDLE TYPE STRING,
WI_MOD_TIMESTAMP TYPE STRING,
WI_MOD_BY TYPE STRING,
CONTAINER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SWW_WIDATA_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_SWW_WIDATA_STR-HEADER sy-vline 
WA_SWW_WIDATA_STR-CLIENT sy-vline 
WA_SWW_WIDATA_STR-WI_ID sy-vline 
WA_SWW_WIDATA_STR-WI_TYPE sy-vline 
WA_SWW_WIDATA_STR-WI_CREATOR sy-vline 
WA_SWW_WIDATA_STR-WI_LANG sy-vline 
WA_SWW_WIDATA_STR-WI_TEXT sy-vline 
WA_SWW_WIDATA_STR-WI_RHTEXT sy-vline 
WA_SWW_WIDATA_STR-WI_STAT sy-vline 
WA_SWW_WIDATA_STR-WI_CD sy-vline 
WA_SWW_WIDATA_STR-WI_CT sy-vline 
WA_SWW_WIDATA_STR-WI_AED sy-vline 
WA_SWW_WIDATA_STR-WI_AAGENT sy-vline 
WA_SWW_WIDATA_STR-WI_AADDR sy-vline 
WA_SWW_WIDATA_STR-WI_CRUSER sy-vline 
WA_SWW_WIDATA_STR-WI_CRADDR sy-vline 
WA_SWW_WIDATA_STR-WI_CHCKWI sy-vline 
WA_SWW_WIDATA_STR-WI_CBFB sy-vline 
WA_SWW_WIDATA_STR-WI_RH_TASK sy-vline 
WA_SWW_WIDATA_STR-WI_PRIO sy-vline 
WA_SWW_WIDATA_STR-WI_CONFIRM sy-vline 
WA_SWW_WIDATA_STR-WI_COMP_EV sy-vline 
WA_SWW_WIDATA_STR-WI_FORW_BY sy-vline 
WA_SWW_WIDATA_STR-WI_DISABLE sy-vline 
WA_SWW_WIDATA_STR-WI_REJECT sy-vline 
WA_SWW_WIDATA_STR-TCLASS sy-vline 
WA_SWW_WIDATA_STR-NOTE_EXIST sy-vline 
WA_SWW_WIDATA_STR-NOTIFY sy-vline 
WA_SWW_WIDATA_STR-RETRY_CNT sy-vline 
WA_SWW_WIDATA_STR-MAX_RETRY sy-vline 
WA_SWW_WIDATA_STR-RC_MODELED sy-vline 
WA_SWW_WIDATA_STR-CB_DONE sy-vline 
WA_SWW_WIDATA_STR-HANDLE sy-vline 
WA_SWW_WIDATA_STR-SYNCCHAIN sy-vline 
WA_SWW_WIDATA_STR-NO_DEADL sy-vline 
WA_SWW_WIDATA_STR-WI_DH_STAT sy-vline 
WA_SWW_WIDATA_STR-WI_RELEASE sy-vline 
WA_SWW_WIDATA_STR-WLC_DISPL sy-vline 
WA_SWW_WIDATA_STR-WI_RESTLOG sy-vline 
WA_SWW_WIDATA_STR-REMOTE_ID sy-vline 
WA_SWW_WIDATA_STR-REMOTE_SYS sy-vline 
WA_SWW_WIDATA_STR-STATUS_EVT sy-vline 
WA_SWW_WIDATA_STR-TIMEOUT sy-vline 
WA_SWW_WIDATA_STR-WF_TYPE sy-vline 
WA_SWW_WIDATA_STR-WLC_FLAGS sy-vline 
WA_SWW_WIDATA_STR-XMLPROT sy-vline 
WA_SWW_WIDATA_STR-WAIT4CB sy-vline 
WA_SWW_WIDATA_STR-TOP_WI_ID sy-vline 
WA_SWW_WIDATA_STR-DEF_GUID sy-vline 
WA_SWW_WIDATA_STR-EXEC_TIME sy-vline 
WA_SWW_WIDATA_STR-NOTE_COUNT sy-vline 
WA_SWW_WIDATA_STR-PRS_PROFIL sy-vline 
WA_SWW_WIDATA_STR-CREA_TMP sy-vline 
WA_SWW_WIDATA_STR-CHECK_STAT sy-vline 
WA_SWW_WIDATA_STR-BLOCKTYPE sy-vline 
WA_SWW_WIDATA_STR-PARENT_WI sy-vline 
WA_SWW_WIDATA_STR-RNDNUMBER sy-vline 
WA_SWW_WIDATA_STR-WFD_ID sy-vline 
WA_SWW_WIDATA_STR-WFD_VERSION sy-vline 
WA_SWW_WIDATA_STR-WFD_EXETYP sy-vline 
WA_SWW_WIDATA_STR-PROCCAT sy-vline 
WA_SWW_WIDATA_STR-TOP_TASK sy-vline 
WA_SWW_WIDATA_STR-AGING_STATE sy-vline 
WA_SWW_WIDATA_STR-AGING_TEMPERATURE sy-vline 
WA_SWW_WIDATA_STR-WLC_FLAGS_EXT sy-vline 
WA_SWW_WIDATA_STR-WI_AED_TIMESTAMP sy-vline 
WA_SWW_WIDATA_STR-REFERENCE_NODEID sy-vline 
WA_SWW_WIDATA_STR-STEP_ID sy-vline 
WA_SWW_WIDATA_STR-AGENT_RULE_ID sy-vline 
WA_SWW_WIDATA_STR-WI_TEXT_ID sy-vline 
WA_SWW_WIDATA_STR-CPWF_HANDLE sy-vline 
WA_SWW_WIDATA_STR-WI_MOD_TIMESTAMP sy-vline 
WA_SWW_WIDATA_STR-WI_MOD_BY sy-vline 
WA_SWW_WIDATA_STR-CONTAINER sy-vline      INTO ld_text SEPARATED BY SPACE.

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