ABAP Select data from SAP table IDWTGLOB into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IDWTGLOB 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 IDWTGLOB. 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 IDWTGLOB 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_IDWTGLOB TYPE STANDARD TABLE OF IDWTGLOB,
      WA_IDWTGLOB TYPE IDWTGLOB,
      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: <IDWTGLOB> TYPE IDWTGLOB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDWTGLOB
*  INTO TABLE @DATA(IT_IDWTGLOB2).
*--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_IDWTGLOB INDEX 1 INTO DATA(WA_IDWTGLOB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDWTGLOB>-LAND1 = 1.
<IDWTGLOB>-INTCA = 1.
<IDWTGLOB>-PGMNAME = 1.
<IDWTGLOB>-WT_OG_NAME = 1.
<IDWTGLOB>-WT_DATA_SOURCE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDWTGLOB-WT_REPORT_EXEC_DATE, sy-vline,
  WA_IDWTGLOB-WT_SC_USER_ACT, sy-vline,
  WA_IDWTGLOB-WT_SC_CHECKS_ACT, sy-vline,
  WA_IDWTGLOB-WT_OG_NO_VAT, sy-vline,
  WA_IDWTGLOB-WT_OG_NO_EXEMPT, sy-vline,
  WA_IDWTGLOB-DISP_METHOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDWTGLOB 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_IDWTGLOB 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_IDWTGLOB INTO WA_IDWTGLOB.


*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 SPDEV, internal->external for field WT_SC_FORM_PR1
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_IDWTGLOB-WT_SC_FORM_PR1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDWTGLOB-WT_SC_FORM_PR1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPDEV, internal->external for field WT_SC_FORM_PR2
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_IDWTGLOB-WT_SC_FORM_PR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDWTGLOB-WT_SC_FORM_PR2.
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_IDWTGLOB_STR, 
LAND1 TYPE STRING,
INTCA TYPE STRING,
PGMNAME TYPE STRING,
WT_OG_NAME TYPE STRING,
WT_DATA_SOURCE TYPE STRING,
WT_REPORT_EXEC_DATE TYPE STRING,
WT_SC_USER_ACT TYPE STRING,
WT_SC_CHECKS_ACT TYPE STRING,
WT_OG_NO_VAT TYPE STRING,
WT_OG_NO_EXEMPT TYPE STRING,
DISP_METHOD TYPE STRING,
WT_OG_USER_PGM TYPE STRING,
WT_OG_REP_DOC TYPE STRING,
WT_OG_OPEN TYPE STRING,
WT_SC_UNIT TYPE STRING,
WT_SC_LIST_ACT1 TYPE STRING,
WT_SC_LIST_ACT2 TYPE STRING,
WT_SC_LIST_ACT3 TYPE STRING,
WT_SC_LIST_ACT4 TYPE STRING,
WT_OG_LIST_TI1 TYPE STRING,
WT_OG_LIST_TI2 TYPE STRING,
WT_OG_LIST_TI3 TYPE STRING,
WT_OG_LIST_TI4 TYPE STRING,
WT_OG_LIST_VR1 TYPE STRING,
WT_OG_LIST_VR2 TYPE STRING,
WT_OG_LIST_VR3 TYPE STRING,
WT_OG_LIST_VR4 TYPE STRING,
WT_OG_PARTNER_NOTC TYPE STRING,
WT_SC_FILE_ACT TYPE STRING,
WT_SC_FILE_NAME TYPE STRING,
WT_OG_FILE_ID TYPE STRING,
WT_OG_FILE TYPE STRING,
WT_OG_CERT_LOC TYPE STRING,
WT_SC_NUMB_ACT TYPE STRING,
WT_SC_CERT_STOR TYPE STRING,
WT_SC_TEST_RUN TYPE STRING,
WT_SC_RANGE_NB TYPE STRING,
WT_SC_NEXT_NB TYPE STRING,
WT_SC_EXCL_BUPLA TYPE STRING,
WT_SC_EXCL_WT0 TYPE STRING,
WT_SC_SEPA_REVERSED TYPE STRING,
WT_SC_NEW_ISSUDT TYPE STRING,
WT_SC_SENDER_VAR TYPE STRING,
WT_TAXREF1 TYPE STRING,
WT_TAXREF2 TYPE STRING,
WT_EDINO TYPE STRING,
WT_SC_FORM_ACT1 TYPE STRING,
WT_SC_FORM_ACT2 TYPE STRING,
WT_OG_FORM_TYP1 TYPE STRING,
WT_OG_FORM_NM1 TYPE STRING,
WT_OG_FORM_TYP2 TYPE STRING,
WT_OG_FORM_NM2 TYPE STRING,
WT_SC_FORM_SP1 TYPE STRING,
WT_SC_FORM_SP2 TYPE STRING,
WT_SC_FORM_CP1 TYPE STRING,
WT_SC_FORM_CP2 TYPE STRING,
WT_SC_FORM_PR1 TYPE STRING,
WT_SC_FORM_PR2 TYPE STRING,
WT_SC_FORM_IM1 TYPE STRING,
WT_SC_FORM_IM2 TYPE STRING,
WT_SC_BATCH_HEAD TYPE STRING,
WT_ALT_PAYEE TYPE STRING,
WT_FISK TYPE STRING,
WT_EXCHG TYPE STRING,
WT_OUTPUT_GRP TYPE STRING,
WT_OUTPUT_CUST TYPE STRING,
WT_OG_TITEL1 TYPE STRING,
WT_OG_TITEL2 TYPE STRING,
WT_SC_REP_FROM TYPE STRING,
WT_SC_REP_TO TYPE STRING,
WT_SC_REP_PER TYPE STRING,
WT_SC_ALTCURR TYPE STRING,
WT_SC_CONVDATE TYPE STRING,
WT_SC_REF_INTER TYPE STRING,
WT_OG_FORM_TI1 TYPE STRING,
WT_OG_FORM_TI2 TYPE STRING,
WT_SC_FILE_NULL TYPE STRING,
WT_REPORT_VARIANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDWTGLOB_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_IDWTGLOB_STR-LAND1 sy-vline 
WA_IDWTGLOB_STR-INTCA sy-vline 
WA_IDWTGLOB_STR-PGMNAME sy-vline 
WA_IDWTGLOB_STR-WT_OG_NAME sy-vline 
WA_IDWTGLOB_STR-WT_DATA_SOURCE sy-vline 
WA_IDWTGLOB_STR-WT_REPORT_EXEC_DATE sy-vline 
WA_IDWTGLOB_STR-WT_SC_USER_ACT sy-vline 
WA_IDWTGLOB_STR-WT_SC_CHECKS_ACT sy-vline 
WA_IDWTGLOB_STR-WT_OG_NO_VAT sy-vline 
WA_IDWTGLOB_STR-WT_OG_NO_EXEMPT sy-vline 
WA_IDWTGLOB_STR-DISP_METHOD sy-vline 
WA_IDWTGLOB_STR-WT_OG_USER_PGM sy-vline 
WA_IDWTGLOB_STR-WT_OG_REP_DOC sy-vline 
WA_IDWTGLOB_STR-WT_OG_OPEN sy-vline 
WA_IDWTGLOB_STR-WT_SC_UNIT sy-vline 
WA_IDWTGLOB_STR-WT_SC_LIST_ACT1 sy-vline 
WA_IDWTGLOB_STR-WT_SC_LIST_ACT2 sy-vline 
WA_IDWTGLOB_STR-WT_SC_LIST_ACT3 sy-vline 
WA_IDWTGLOB_STR-WT_SC_LIST_ACT4 sy-vline 
WA_IDWTGLOB_STR-WT_OG_LIST_TI1 sy-vline 
WA_IDWTGLOB_STR-WT_OG_LIST_TI2 sy-vline 
WA_IDWTGLOB_STR-WT_OG_LIST_TI3 sy-vline 
WA_IDWTGLOB_STR-WT_OG_LIST_TI4 sy-vline 
WA_IDWTGLOB_STR-WT_OG_LIST_VR1 sy-vline 
WA_IDWTGLOB_STR-WT_OG_LIST_VR2 sy-vline 
WA_IDWTGLOB_STR-WT_OG_LIST_VR3 sy-vline 
WA_IDWTGLOB_STR-WT_OG_LIST_VR4 sy-vline 
WA_IDWTGLOB_STR-WT_OG_PARTNER_NOTC sy-vline 
WA_IDWTGLOB_STR-WT_SC_FILE_ACT sy-vline 
WA_IDWTGLOB_STR-WT_SC_FILE_NAME sy-vline 
WA_IDWTGLOB_STR-WT_OG_FILE_ID sy-vline 
WA_IDWTGLOB_STR-WT_OG_FILE sy-vline 
WA_IDWTGLOB_STR-WT_OG_CERT_LOC sy-vline 
WA_IDWTGLOB_STR-WT_SC_NUMB_ACT sy-vline 
WA_IDWTGLOB_STR-WT_SC_CERT_STOR sy-vline 
WA_IDWTGLOB_STR-WT_SC_TEST_RUN sy-vline 
WA_IDWTGLOB_STR-WT_SC_RANGE_NB sy-vline 
WA_IDWTGLOB_STR-WT_SC_NEXT_NB sy-vline 
WA_IDWTGLOB_STR-WT_SC_EXCL_BUPLA sy-vline 
WA_IDWTGLOB_STR-WT_SC_EXCL_WT0 sy-vline 
WA_IDWTGLOB_STR-WT_SC_SEPA_REVERSED sy-vline 
WA_IDWTGLOB_STR-WT_SC_NEW_ISSUDT sy-vline 
WA_IDWTGLOB_STR-WT_SC_SENDER_VAR sy-vline 
WA_IDWTGLOB_STR-WT_TAXREF1 sy-vline 
WA_IDWTGLOB_STR-WT_TAXREF2 sy-vline 
WA_IDWTGLOB_STR-WT_EDINO sy-vline 
WA_IDWTGLOB_STR-WT_SC_FORM_ACT1 sy-vline 
WA_IDWTGLOB_STR-WT_SC_FORM_ACT2 sy-vline 
WA_IDWTGLOB_STR-WT_OG_FORM_TYP1 sy-vline 
WA_IDWTGLOB_STR-WT_OG_FORM_NM1 sy-vline 
WA_IDWTGLOB_STR-WT_OG_FORM_TYP2 sy-vline 
WA_IDWTGLOB_STR-WT_OG_FORM_NM2 sy-vline 
WA_IDWTGLOB_STR-WT_SC_FORM_SP1 sy-vline 
WA_IDWTGLOB_STR-WT_SC_FORM_SP2 sy-vline 
WA_IDWTGLOB_STR-WT_SC_FORM_CP1 sy-vline 
WA_IDWTGLOB_STR-WT_SC_FORM_CP2 sy-vline 
WA_IDWTGLOB_STR-WT_SC_FORM_PR1 sy-vline 
WA_IDWTGLOB_STR-WT_SC_FORM_PR2 sy-vline 
WA_IDWTGLOB_STR-WT_SC_FORM_IM1 sy-vline 
WA_IDWTGLOB_STR-WT_SC_FORM_IM2 sy-vline 
WA_IDWTGLOB_STR-WT_SC_BATCH_HEAD sy-vline 
WA_IDWTGLOB_STR-WT_ALT_PAYEE sy-vline 
WA_IDWTGLOB_STR-WT_FISK sy-vline 
WA_IDWTGLOB_STR-WT_EXCHG sy-vline 
WA_IDWTGLOB_STR-WT_OUTPUT_GRP sy-vline 
WA_IDWTGLOB_STR-WT_OUTPUT_CUST sy-vline 
WA_IDWTGLOB_STR-WT_OG_TITEL1 sy-vline 
WA_IDWTGLOB_STR-WT_OG_TITEL2 sy-vline 
WA_IDWTGLOB_STR-WT_SC_REP_FROM sy-vline 
WA_IDWTGLOB_STR-WT_SC_REP_TO sy-vline 
WA_IDWTGLOB_STR-WT_SC_REP_PER sy-vline 
WA_IDWTGLOB_STR-WT_SC_ALTCURR sy-vline 
WA_IDWTGLOB_STR-WT_SC_CONVDATE sy-vline 
WA_IDWTGLOB_STR-WT_SC_REF_INTER sy-vline 
WA_IDWTGLOB_STR-WT_OG_FORM_TI1 sy-vline 
WA_IDWTGLOB_STR-WT_OG_FORM_TI2 sy-vline 
WA_IDWTGLOB_STR-WT_SC_FILE_NULL sy-vline 
WA_IDWTGLOB_STR-WT_REPORT_VARIANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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