ABAP Select data from SAP table ISU_C4C_SRV_NOTIF_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISU_C4C_SRV_NOTIF_S 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 ISU_C4C_SRV_NOTIF_S. 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 ISU_C4C_SRV_NOTIF_S 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_ISU_C4C_SRV_NOTIF_S TYPE STANDARD TABLE OF ISU_C4C_SRV_NOTIF_S,
      WA_ISU_C4C_SRV_NOTIF_S TYPE ISU_C4C_SRV_NOTIF_S,
      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: <ISU_C4C_SRV_NOTIF_S> TYPE ISU_C4C_SRV_NOTIF_S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ISU_C4C_SRV_NOTIF_S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ISU_C4C_SRV_NOTIF_S
  INTO TABLE IT_ISU_C4C_SRV_NOTIF_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU_C4C_SRV_NOTIF_S
*  INTO TABLE @DATA(IT_ISU_C4C_SRV_NOTIF_S2).
*--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_ISU_C4C_SRV_NOTIF_S INDEX 1 INTO DATA(WA_ISU_C4C_SRV_NOTIF_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ISU_C4C_SRV_NOTIF_S ASSIGNING <ISU_C4C_SRV_NOTIF_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU_C4C_SRV_NOTIF_S>-QMNUM = 1.
<ISU_C4C_SRV_NOTIF_S>-EQUNR = 1.
<ISU_C4C_SRV_NOTIF_S>-QMART = 1.
<ISU_C4C_SRV_NOTIF_S>-QMTXT = 1.
<ISU_C4C_SRV_NOTIF_S>-ERNAM = 1.

ENDLOOP.

LOOP AT IT_ISU_C4C_SRV_NOTIF_S INTO WA_ISU_C4C_SRV_NOTIF_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU_C4C_SRV_NOTIF_S-ERDAT, sy-vline,
  WA_ISU_C4C_SRV_NOTIF_S-STRMN, sy-vline,
  WA_ISU_C4C_SRV_NOTIF_S-STRUR, sy-vline,
  WA_ISU_C4C_SRV_NOTIF_S-LTRMN, sy-vline,
  WA_ISU_C4C_SRV_NOTIF_S-LTRUR, sy-vline,
  WA_ISU_C4C_SRV_NOTIF_S-AUFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU_C4C_SRV_NOTIF_S 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_ISU_C4C_SRV_NOTIF_S 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_ISU_C4C_SRV_NOTIF_S INTO WA_ISU_C4C_SRV_NOTIF_S.


*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 QMNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_SRV_NOTIF_S-QMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_SRV_NOTIF_S-QMNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_SRV_NOTIF_S-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_SRV_NOTIF_S-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_SRV_NOTIF_S-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_SRV_NOTIF_S-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_SRV_NOTIF_S-KUNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_SRV_NOTIF_S-KUNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_SRV_NOTIF_S-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_SRV_NOTIF_S-TPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VSTELLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_SRV_NOTIF_S-VSTELLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_SRV_NOTIF_S-VSTELLE.
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_ISU_C4C_SRV_NOTIF_S_STR, 
QMNUM TYPE STRING,
EQUNR TYPE STRING,
QMART TYPE STRING,
QMTXT TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
STRMN TYPE STRING,
STRUR TYPE STRING,
LTRMN TYPE STRING,
LTRUR TYPE STRING,
AUFNR TYPE STRING,
KUNUM TYPE STRING,
QMGRP TYPE STRING,
QMCOD TYPE STRING,
ARBPL TYPE STRING,
TPLNR TYPE STRING,
BUKRS TYPE STRING,
J_ATEXT TYPE STRING,
J_STEXT TYPE STRING,
VSTELLE TYPE STRING,
PREM_ADR TYPE STRING,
ARBPL_TXT TYPE STRING,
MAINT_PLANT TYPE STRING,
DIVISION TYPE STRING,
SYST_STATUS_DES TYPE STRING,
USER_STATUS_DES TYPE STRING,
LONGTEXT TYPE STRING,
USER_STATUS_TAB TYPE STRING,
SYSTEM_STATUS_TAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU_C4C_SRV_NOTIF_S_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_ISU_C4C_SRV_NOTIF_S_STR-QMNUM sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-EQUNR sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-QMART sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-QMTXT sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-ERNAM sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-ERDAT sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-STRMN sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-STRUR sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-LTRMN sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-LTRUR sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-AUFNR sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-KUNUM sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-QMGRP sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-QMCOD sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-ARBPL sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-TPLNR sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-BUKRS sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-J_ATEXT sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-J_STEXT sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-VSTELLE sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-PREM_ADR sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-ARBPL_TXT sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-MAINT_PLANT sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-DIVISION sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-SYST_STATUS_DES sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-USER_STATUS_DES sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-LONGTEXT sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-USER_STATUS_TAB sy-vline 
WA_ISU_C4C_SRV_NOTIF_S_STR-SYSTEM_STATUS_TAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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