ABAP Select data from SAP table WGDS_S_TI_ERROR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WGDS_S_TI_ERROR
*  INTO TABLE @DATA(IT_WGDS_S_TI_ERROR2).
*--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_WGDS_S_TI_ERROR INDEX 1 INTO DATA(WA_WGDS_S_TI_ERROR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WGDS_S_TI_ERROR>-ERROR_ID = 1.
<WGDS_S_TI_ERROR>-TI_ID = 1.
<WGDS_S_TI_ERROR>-TI_ID_TYPE = 1.
<WGDS_S_TI_ERROR>-GLN_INFO_PROV = 1.
<WGDS_S_TI_ERROR>-TARGET_MARKET = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WGDS_S_TI_ERROR-REGION, sy-vline,
  WA_WGDS_S_TI_ERROR-VALIDITY, sy-vline,
  WA_WGDS_S_TI_ERROR-VERSION, sy-vline,
  WA_WGDS_S_TI_ERROR-STRUCTURETYPE, sy-vline,
  WA_WGDS_S_TI_ERROR-STRUCT_SUBKEY1, sy-vline,
  WA_WGDS_S_TI_ERROR-STRUCT_SUBKEY2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WGDS_S_TI_ERROR 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_WGDS_S_TI_ERROR 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_WGDS_S_TI_ERROR INTO WA_WGDS_S_TI_ERROR.


*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 SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_WGDS_S_TI_ERROR-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WGDS_S_TI_ERROR-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSLOC, internal->external for field CREATED_TMSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSLOC_OUTPUT'
  EXPORTING
    input =                      WA_WGDS_S_TI_ERROR-CREATED_TMSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WGDS_S_TI_ERROR-CREATED_TMSTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSLOC, internal->external for field CHANGED_TMSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSLOC_OUTPUT'
  EXPORTING
    input =                      WA_WGDS_S_TI_ERROR-CHANGED_TMSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WGDS_S_TI_ERROR-CHANGED_TMSTMP.
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_WGDS_S_TI_ERROR_STR, 
ERROR_ID TYPE STRING,
TI_ID TYPE STRING,
TI_ID_TYPE TYPE STRING,
GLN_INFO_PROV TYPE STRING,
TARGET_MARKET TYPE STRING,
REGION TYPE STRING,
VALIDITY TYPE STRING,
VERSION TYPE STRING,
STRUCTURETYPE TYPE STRING,
STRUCT_SUBKEY1 TYPE STRING,
STRUCT_SUBKEY2 TYPE STRING,
FIELD TYPE STRING,
ERROR_CODE TYPE STRING,
SPRAS TYPE STRING,
ERROR_TEXT TYPE STRING,
INTERNAL_NOTE TYPE STRING,
INCORRECT_VALUE TYPE STRING,
EXPECTED_VALUE TYPE STRING,
IS_SENT TYPE STRING,
IS_SOLVED TYPE STRING,
CLASSIFICATION TYPE STRING,
ERROR_CODE_DESCR TYPE STRING,
FIELD_DESCR TYPE STRING,
CLASSIFICATION_DESCR TYPE STRING,
INTERNAL TYPE STRING,
CIC_CODE TYPE STRING,
BASE_TI_ID TYPE STRING,
BASE_TI_ID_TYPE TYPE STRING,
BASE_TI_ID_VALIDITY TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_TMSTMP TYPE STRING,
CREATED_PROGRAMM TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_TMSTMP TYPE STRING,
CHANGED_PROGRAMM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WGDS_S_TI_ERROR_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_WGDS_S_TI_ERROR_STR-ERROR_ID sy-vline 
WA_WGDS_S_TI_ERROR_STR-TI_ID sy-vline 
WA_WGDS_S_TI_ERROR_STR-TI_ID_TYPE sy-vline 
WA_WGDS_S_TI_ERROR_STR-GLN_INFO_PROV sy-vline 
WA_WGDS_S_TI_ERROR_STR-TARGET_MARKET sy-vline 
WA_WGDS_S_TI_ERROR_STR-REGION sy-vline 
WA_WGDS_S_TI_ERROR_STR-VALIDITY sy-vline 
WA_WGDS_S_TI_ERROR_STR-VERSION sy-vline 
WA_WGDS_S_TI_ERROR_STR-STRUCTURETYPE sy-vline 
WA_WGDS_S_TI_ERROR_STR-STRUCT_SUBKEY1 sy-vline 
WA_WGDS_S_TI_ERROR_STR-STRUCT_SUBKEY2 sy-vline 
WA_WGDS_S_TI_ERROR_STR-FIELD sy-vline 
WA_WGDS_S_TI_ERROR_STR-ERROR_CODE sy-vline 
WA_WGDS_S_TI_ERROR_STR-SPRAS sy-vline 
WA_WGDS_S_TI_ERROR_STR-ERROR_TEXT sy-vline 
WA_WGDS_S_TI_ERROR_STR-INTERNAL_NOTE sy-vline 
WA_WGDS_S_TI_ERROR_STR-INCORRECT_VALUE sy-vline 
WA_WGDS_S_TI_ERROR_STR-EXPECTED_VALUE sy-vline 
WA_WGDS_S_TI_ERROR_STR-IS_SENT sy-vline 
WA_WGDS_S_TI_ERROR_STR-IS_SOLVED sy-vline 
WA_WGDS_S_TI_ERROR_STR-CLASSIFICATION sy-vline 
WA_WGDS_S_TI_ERROR_STR-ERROR_CODE_DESCR sy-vline 
WA_WGDS_S_TI_ERROR_STR-FIELD_DESCR sy-vline 
WA_WGDS_S_TI_ERROR_STR-CLASSIFICATION_DESCR sy-vline 
WA_WGDS_S_TI_ERROR_STR-INTERNAL sy-vline 
WA_WGDS_S_TI_ERROR_STR-CIC_CODE sy-vline 
WA_WGDS_S_TI_ERROR_STR-BASE_TI_ID sy-vline 
WA_WGDS_S_TI_ERROR_STR-BASE_TI_ID_TYPE sy-vline 
WA_WGDS_S_TI_ERROR_STR-BASE_TI_ID_VALIDITY sy-vline 
WA_WGDS_S_TI_ERROR_STR-CREATED_BY sy-vline 
WA_WGDS_S_TI_ERROR_STR-CREATED_TMSTMP sy-vline 
WA_WGDS_S_TI_ERROR_STR-CREATED_PROGRAMM sy-vline 
WA_WGDS_S_TI_ERROR_STR-CHANGED_BY sy-vline 
WA_WGDS_S_TI_ERROR_STR-CHANGED_TMSTMP sy-vline 
WA_WGDS_S_TI_ERROR_STR-CHANGED_PROGRAMM sy-vline      INTO ld_text SEPARATED BY SPACE.

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