ABAP Select data from SAP table WGDS_NOTIFICATION_CAT_STY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WGDS_NOTIFICATION_CAT_STY 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_NOTIFICATION_CAT_STY. 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_NOTIFICATION_CAT_STY 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_NOTIFICATION_CAT_STY TYPE STANDARD TABLE OF WGDS_NOTIFICATION_CAT_STY,
      WA_WGDS_NOTIFICATION_CAT_STY TYPE WGDS_NOTIFICATION_CAT_STY,
      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_NOTIFICATION_CAT_STY> TYPE WGDS_NOTIFICATION_CAT_STY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WGDS_NOTIFICATION_CAT_STY
*  INTO TABLE @DATA(IT_WGDS_NOTIFICATION_CAT_STY2).
*--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_NOTIFICATION_CAT_STY INDEX 1 INTO DATA(WA_WGDS_NOTIFICATION_CAT_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WGDS_NOTIFICATION_CAT_STY>-MANDT = 1.
<WGDS_NOTIFICATION_CAT_STY>-PRINBR = 1.
<WGDS_NOTIFICATION_CAT_STY>-ILN_SENDER = 1.
<WGDS_NOTIFICATION_CAT_STY>-UNIQUE_REFERENCE = 1.
<WGDS_NOTIFICATION_CAT_STY>-OUTBOUNDFLAG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WGDS_NOTIFICATION_CAT_STY-PRISTATE, sy-vline,
  WA_WGDS_NOTIFICATION_CAT_STY-PRIOUTSTATE, sy-vline,
  WA_WGDS_NOTIFICATION_CAT_STY-TEST_INDICATOR, sy-vline,
  WA_WGDS_NOTIFICATION_CAT_STY-ASSORTMENT, sy-vline,
  WA_WGDS_NOTIFICATION_CAT_STY-CUSTOMER, sy-vline,
  WA_WGDS_NOTIFICATION_CAT_STY-DATEFROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WGDS_NOTIFICATION_CAT_STY 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_NOTIFICATION_CAT_STY 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_NOTIFICATION_CAT_STY INTO WA_WGDS_NOTIFICATION_CAT_STY.


*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 ASSORTMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WGDS_NOTIFICATION_CAT_STY-ASSORTMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WGDS_NOTIFICATION_CAT_STY-ASSORTMENT.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WGDS_NOTIFICATION_CAT_STY-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WGDS_NOTIFICATION_CAT_STY-LIFNR.
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_NOTIFICATION_CAT_STY_STR, 
MANDT TYPE STRING,
PRINBR TYPE STRING,
ILN_SENDER TYPE STRING,
UNIQUE_REFERENCE TYPE STRING,
OUTBOUNDFLAG TYPE STRING,
PRISTATE TYPE STRING,
PRIOUTSTATE TYPE STRING,
TEST_INDICATOR TYPE STRING,
ASSORTMENT TYPE STRING,
CUSTOMER TYPE STRING,
DATEFROM TYPE STRING,
DATETO TYPE STRING,
PRICEKEYDATE TYPE STRING,
PROFIL TYPE STRING,
PPROCEDURE TYPE STRING,
SALESORG TYPE STRING,
DISTR_CHAN TYPE STRING,
DIVISION TYPE STRING,
DETERMINATION TYPE STRING,
PRICECUSTOMER TYPE STRING,
DATEFROMPOSI TYPE STRING,
WEB_STATE TYPE STRING,
WEB_CUSTOMER TYPE STRING,
VALIDITYDATE TYPE STRING,
HISTORY TYPE STRING,
USEDATE TYPE STRING,
CHMGINTERVAL TYPE STRING,
LASTUPDATE TYPE STRING,
STARTSENDING TYPE STRING,
LOGNR TYPE STRING,
LIFNR TYPE STRING,
EKGRP TYPE STRING,
ILN_RECIPIENT TYPE STRING,
DATE_MESSAGE TYPE STRING,
TIME_MESSAGE TYPE STRING,
PRINAME TYPE STRING,
SYNTAX_IDENT TYPE STRING,
SYNTAX_VERSION TYPE STRING,
PASSWORD_RECIP TYPE STRING,
ILN_PARTY_ID TYPE STRING,
CURRENCY_SENDER TYPE STRING,
CURRENCY_RECIP TYPE STRING,
KART TYPE STRING,
VIEW_PERIOD TYPE STRING,
WEEKLY_RECUR TYPE STRING,
PRI_MO TYPE STRING,
PRI_DI TYPE STRING,
PRI_MI TYPE STRING,
PRI_DO TYPE STRING,
PRI_FR TYPE STRING,
PRI_SA TYPE STRING,
PRI_SO TYPE STRING,
WGDS_TM_COUNTRY TYPE STRING,
WGDS_TM_SUBDIVIS TYPE STRING,
BEGRU TYPE STRING,
PRICAT_K003 TYPE STRING,
PRICAT_K003Z TYPE STRING,
PRICAT_K004 TYPE STRING,
PRICAT_K005 TYPE STRING,
PRICAT_K006 TYPE STRING,
PRICAT_K007 TYPE STRING,
PRICAT_K008 TYPE STRING,
PRICAT_K009 TYPE STRING,
PRICAT_010 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WGDS_NOTIFICATION_CAT_STY_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_NOTIFICATION_CAT_STY_STR-MANDT sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRINBR sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-ILN_SENDER sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-UNIQUE_REFERENCE sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-OUTBOUNDFLAG sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRISTATE sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRIOUTSTATE sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-TEST_INDICATOR sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-ASSORTMENT sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-CUSTOMER sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-DATEFROM sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-DATETO sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRICEKEYDATE sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PROFIL sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PPROCEDURE sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-SALESORG sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-DISTR_CHAN sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-DIVISION sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-DETERMINATION sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRICECUSTOMER sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-DATEFROMPOSI sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-WEB_STATE sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-WEB_CUSTOMER sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-VALIDITYDATE sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-HISTORY sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-USEDATE sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-CHMGINTERVAL sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-LASTUPDATE sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-STARTSENDING sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-LOGNR sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-LIFNR sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-EKGRP sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-ILN_RECIPIENT sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-DATE_MESSAGE sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-TIME_MESSAGE sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRINAME sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-SYNTAX_IDENT sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-SYNTAX_VERSION sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PASSWORD_RECIP sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-ILN_PARTY_ID sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-CURRENCY_SENDER sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-CURRENCY_RECIP sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-KART sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-VIEW_PERIOD sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-WEEKLY_RECUR sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRI_MO sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRI_DI sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRI_MI sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRI_DO sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRI_FR sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRI_SA sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRI_SO sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-WGDS_TM_COUNTRY sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-WGDS_TM_SUBDIVIS sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-BEGRU sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRICAT_K003 sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRICAT_K003Z sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRICAT_K004 sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRICAT_K005 sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRICAT_K006 sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRICAT_K007 sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRICAT_K008 sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRICAT_K009 sy-vline 
WA_WGDS_NOTIFICATION_CAT_STY_STR-PRICAT_010 sy-vline      INTO ld_text SEPARATED BY SPACE.

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