ABAP Select data from SAP table ISU_C4C_AUDIT_V 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_AUDIT_V 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_AUDIT_V. 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_AUDIT_V 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_AUDIT_V TYPE STANDARD TABLE OF ISU_C4C_AUDIT_V,
      WA_ISU_C4C_AUDIT_V TYPE ISU_C4C_AUDIT_V,
      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_AUDIT_V> TYPE ISU_C4C_AUDIT_V.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ISU_C4C_AUDIT_V.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ISU_C4C_AUDIT_V
  INTO TABLE IT_ISU_C4C_AUDIT_V.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU_C4C_AUDIT_V
*  INTO TABLE @DATA(IT_ISU_C4C_AUDIT_V2).
*--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_AUDIT_V INDEX 1 INTO DATA(WA_ISU_C4C_AUDIT_V2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ISU_C4C_AUDIT_V ASSIGNING <ISU_C4C_AUDIT_V>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU_C4C_AUDIT_V>-MANDT = 1.
<ISU_C4C_AUDIT_V>-CHANGENUMBER = 1.
<ISU_C4C_AUDIT_V>-OBJECTCLASS = 1.
<ISU_C4C_AUDIT_V>-OBJECTID = 1.
<ISU_C4C_AUDIT_V>-CREATIONDATE = 1.

ENDLOOP.

LOOP AT IT_ISU_C4C_AUDIT_V INTO WA_ISU_C4C_AUDIT_V.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU_C4C_AUDIT_V-CREATIONTIME, sy-vline,
  WA_ISU_C4C_AUDIT_V-CRDAT, sy-vline,
  WA_ISU_C4C_AUDIT_V-CRTIM, sy-vline,
  WA_ISU_C4C_AUDIT_V-USERNAME, sy-vline,
  WA_ISU_C4C_AUDIT_V-C4CUSERNAME, sy-vline,
  WA_ISU_C4C_AUDIT_V-LOGICALSYSTEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU_C4C_AUDIT_V 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_AUDIT_V 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_AUDIT_V INTO WA_ISU_C4C_AUDIT_V.


*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 CHANGENUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_AUDIT_V-CHANGENUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_AUDIT_V-CHANGENUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OBJECTCLASS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_AUDIT_V-OBJECTCLASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_AUDIT_V-OBJECTCLASS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGICALSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_AUDIT_V-LOGICALSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_AUDIT_V-LOGICALSYSTEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLANNEDCHANGEDNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_AUDIT_V-PLANNEDCHANGEDNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_AUDIT_V-PLANNEDCHANGEDNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACTCHANGNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_AUDIT_V-ACTCHANGNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_AUDIT_V-ACTCHANGNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGUAUGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_AUDIT_V-LANGUAUGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_AUDIT_V-LANGUAUGE.
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_AUDIT_V_STR, 
MANDT TYPE STRING,
CHANGENUMBER TYPE STRING,
OBJECTCLASS TYPE STRING,
OBJECTID TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
CRDAT TYPE STRING,
CRTIM TYPE STRING,
USERNAME TYPE STRING,
C4CUSERNAME TYPE STRING,
LOGICALSYSTEM TYPE STRING,
TABNAME TYPE STRING,
TABKEY TYPE STRING,
VALUENEW TYPE STRING,
VALUEOLD TYPE STRING,
FIELDNAME TYPE STRING,
TCODE TYPE STRING,
PLANNEDCHANGEDNO TYPE STRING,
ACTCHANGNO TYPE STRING,
WASPLANNED TYPE STRING,
CHANGEIND TYPE STRING,
LANGUAUGE TYPE STRING,
VERSION TYPE STRING,
TEXTCASE TYPE STRING,
UNITOLD TYPE STRING,
UNITNEW TYPE STRING,
CURRENCYOLD TYPE STRING,
CURRENCYNEW TYPE STRING,
DATAAGEING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU_C4C_AUDIT_V_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_AUDIT_V_STR-MANDT sy-vline 
WA_ISU_C4C_AUDIT_V_STR-CHANGENUMBER sy-vline 
WA_ISU_C4C_AUDIT_V_STR-OBJECTCLASS sy-vline 
WA_ISU_C4C_AUDIT_V_STR-OBJECTID sy-vline 
WA_ISU_C4C_AUDIT_V_STR-CREATIONDATE sy-vline 
WA_ISU_C4C_AUDIT_V_STR-CREATIONTIME sy-vline 
WA_ISU_C4C_AUDIT_V_STR-CRDAT sy-vline 
WA_ISU_C4C_AUDIT_V_STR-CRTIM sy-vline 
WA_ISU_C4C_AUDIT_V_STR-USERNAME sy-vline 
WA_ISU_C4C_AUDIT_V_STR-C4CUSERNAME sy-vline 
WA_ISU_C4C_AUDIT_V_STR-LOGICALSYSTEM sy-vline 
WA_ISU_C4C_AUDIT_V_STR-TABNAME sy-vline 
WA_ISU_C4C_AUDIT_V_STR-TABKEY sy-vline 
WA_ISU_C4C_AUDIT_V_STR-VALUENEW sy-vline 
WA_ISU_C4C_AUDIT_V_STR-VALUEOLD sy-vline 
WA_ISU_C4C_AUDIT_V_STR-FIELDNAME sy-vline 
WA_ISU_C4C_AUDIT_V_STR-TCODE sy-vline 
WA_ISU_C4C_AUDIT_V_STR-PLANNEDCHANGEDNO sy-vline 
WA_ISU_C4C_AUDIT_V_STR-ACTCHANGNO sy-vline 
WA_ISU_C4C_AUDIT_V_STR-WASPLANNED sy-vline 
WA_ISU_C4C_AUDIT_V_STR-CHANGEIND sy-vline 
WA_ISU_C4C_AUDIT_V_STR-LANGUAUGE sy-vline 
WA_ISU_C4C_AUDIT_V_STR-VERSION sy-vline 
WA_ISU_C4C_AUDIT_V_STR-TEXTCASE sy-vline 
WA_ISU_C4C_AUDIT_V_STR-UNITOLD sy-vline 
WA_ISU_C4C_AUDIT_V_STR-UNITNEW sy-vline 
WA_ISU_C4C_AUDIT_V_STR-CURRENCYOLD sy-vline 
WA_ISU_C4C_AUDIT_V_STR-CURRENCYNEW sy-vline 
WA_ISU_C4C_AUDIT_V_STR-DATAAGEING sy-vline      INTO ld_text SEPARATED BY SPACE.

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