ABAP Select data from SAP table ISU_C4C_EMMA_CASE 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_EMMA_CASE 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_EMMA_CASE. 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_EMMA_CASE 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_EMMA_CASE TYPE STANDARD TABLE OF ISU_C4C_EMMA_CASE,
      WA_ISU_C4C_EMMA_CASE TYPE ISU_C4C_EMMA_CASE,
      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_EMMA_CASE> TYPE ISU_C4C_EMMA_CASE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ISU_C4C_EMMA_CASE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ISU_C4C_EMMA_CASE
  INTO TABLE IT_ISU_C4C_EMMA_CASE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU_C4C_EMMA_CASE
*  INTO TABLE @DATA(IT_ISU_C4C_EMMA_CASE2).
*--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_EMMA_CASE INDEX 1 INTO DATA(WA_ISU_C4C_EMMA_CASE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ISU_C4C_EMMA_CASE ASSIGNING <ISU_C4C_EMMA_CASE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU_C4C_EMMA_CASE>-CASENUMBER = 1.
<ISU_C4C_EMMA_CASE>-BPAREA = 1.
<ISU_C4C_EMMA_CASE>-BPCODE = 1.
<ISU_C4C_EMMA_CASE>-CASE_TYPE = 1.
<ISU_C4C_EMMA_CASE>-CASE_TEXT = 1.

ENDLOOP.

LOOP AT IT_ISU_C4C_EMMA_CASE INTO WA_ISU_C4C_EMMA_CASE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU_C4C_EMMA_CASE-CASE_CATEGORY, sy-vline,
  WA_ISU_C4C_EMMA_CASE-PRIORITY, sy-vline,
  WA_ISU_C4C_EMMA_CASE-STATUS, sy-vline,
  WA_ISU_C4C_EMMA_CASE-MAIN_OBJECT_TYPE, sy-vline,
  WA_ISU_C4C_EMMA_CASE-MAIN_OBJECT_TYPE_DESCR, sy-vline,
  WA_ISU_C4C_EMMA_CASE-MAIN_OBJECT_KEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU_C4C_EMMA_CASE 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_EMMA_CASE 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_EMMA_CASE INTO WA_ISU_C4C_EMMA_CASE.


*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 CASENUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_EMMA_CASE-CASENUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_EMMA_CASE-CASENUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BPAREA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_EMMA_CASE-BPAREA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_EMMA_CASE-BPAREA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BPCODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_EMMA_CASE-BPCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_EMMA_CASE-BPCODE.
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_EMMA_CASE_STR, 
CASENUMBER TYPE STRING,
BPAREA TYPE STRING,
BPCODE TYPE STRING,
CASE_TYPE TYPE STRING,
CASE_TEXT TYPE STRING,
CASE_CATEGORY TYPE STRING,
PRIORITY TYPE STRING,
STATUS TYPE STRING,
MAIN_OBJECT_TYPE TYPE STRING,
MAIN_OBJECT_TYPE_DESCR TYPE STRING,
MAIN_OBJECT_KEY TYPE STRING,
MAIN_OBJECT_DESCRIPTION TYPE STRING,
OBJECTS TYPE STRING,
ORIG_DATE TYPE STRING,
ORIG_TIME TYPE STRING,
PROCESSOR_ID TYPE STRING,
PROCESSOR_NAME TYPE STRING,
DUE_DATE TYPE STRING,
DUE_TIME TYPE STRING,
CREATED_DATE TYPE STRING,
CREATED_TIME TYPE STRING,
CREATED_BY TYPE STRING,
CHANGED_DATE TYPE STRING,
CHANGED_TIME TYPE STRING,
CHANGED_BY TYPE STRING,
NOTE_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU_C4C_EMMA_CASE_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_EMMA_CASE_STR-CASENUMBER sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-BPAREA sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-BPCODE sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-CASE_TYPE sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-CASE_TEXT sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-CASE_CATEGORY sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-PRIORITY sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-STATUS sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-MAIN_OBJECT_TYPE sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-MAIN_OBJECT_TYPE_DESCR sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-MAIN_OBJECT_KEY sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-MAIN_OBJECT_DESCRIPTION sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-OBJECTS sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-ORIG_DATE sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-ORIG_TIME sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-PROCESSOR_ID sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-PROCESSOR_NAME sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-DUE_DATE sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-DUE_TIME sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-CREATED_DATE sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-CREATED_TIME sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-CREATED_BY sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-CHANGED_DATE sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-CHANGED_TIME sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-CHANGED_BY sy-vline 
WA_ISU_C4C_EMMA_CASE_STR-NOTE_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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