ABAP Select data from SAP table EMMAD_CASEHDR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EMMAD_CASEHDR
*  INTO TABLE @DATA(IT_EMMAD_CASEHDR2).
*--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_EMMAD_CASEHDR INDEX 1 INTO DATA(WA_EMMAD_CASEHDR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EMMAD_CASEHDR>-CASENR = 1.
<EMMAD_CASEHDR>-CASE_GUID = 1.
<EMMAD_CASEHDR>-RUNID = 1.
<EMMAD_CASEHDR>-INTNR = 1.
<EMMAD_CASEHDR>-LOGSYS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EMMAD_CASEHDR-BPCODE, sy-vline,
  WA_EMMAD_CASEHDR-BPAREA, sy-vline,
  WA_EMMAD_CASEHDR-CTYPE, sy-vline,
  WA_EMMAD_CASEHDR-CCAT, sy-vline,
  WA_EMMAD_CASEHDR-PRIO, sy-vline,
  WA_EMMAD_CASEHDR-PRIOORIG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EMMAD_CASEHDR 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_EMMAD_CASEHDR 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_EMMAD_CASEHDR INTO WA_EMMAD_CASEHDR.


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

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

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

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

*Conversion exit ALPHA, internal->external for field TEMPLATE_CASE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EMMAD_CASEHDR-TEMPLATE_CASE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EMMAD_CASEHDR-TEMPLATE_CASE.
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_EMMAD_CASEHDR_STR, 
CASENR TYPE STRING,
CASE_GUID TYPE STRING,
RUNID TYPE STRING,
INTNR TYPE STRING,
LOGSYS TYPE STRING,
BPCODE TYPE STRING,
BPAREA TYPE STRING,
CTYPE TYPE STRING,
CCAT TYPE STRING,
PRIO TYPE STRING,
PRIOORIG TYPE STRING,
BRGRU TYPE STRING,
STATUS TYPE STRING,
MAINOBJTYPE TYPE STRING,
MAINOBJKEY TYPE STRING,
CURRPROC TYPE STRING,
NEWREACODE TYPE STRING,
PREVPROC TYPE STRING,
REACODE TYPE STRING,
CANCODE TYPE STRING,
ORIG_DATE TYPE STRING,
ORIG_TIME TYPE STRING,
DUE_DATE TYPE STRING,
DUE_TIME TYPE STRING,
CASETXT TYPE STRING,
CUSTSTATUS 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,
BUTPROC TYPE STRING,
BUTOBJ TYPE STRING,
BUTNOTES TYPE STRING,
BUTMSGS TYPE STRING,
BUTIC TYPE STRING,
BUT_CCATTXT TYPE STRING,
BPCTXT TYPE STRING,
BPATXT TYPE STRING,
CTTXT TYPE STRING,
CCTXT TYPE STRING,
CREACTXT TYPE STRING,
WMODE TYPE STRING,
TEMPLATE_CASE TYPE STRING,
CURSORFIELD TYPE STRING,
DUE_ICON TYPE STRING,
OBJKEY TYPE STRING,
FVAL TYPE STRING,
OBJTYPE TYPE STRING,
REFSTRUCT TYPE STRING,
REFFIELD TYPE STRING,
CELEMNAME TYPE STRING,
EXIT_STATE TYPE STRING,
MSGTXT TYPE STRING,
INFOPOPUPTITLE TYPE STRING,
HEADERLINE1 TYPE STRING,
HEADERLINE2 TYPE STRING,
QUESTIONLINE1 TYPE STRING,
QUESTIONLINE2 TYPE STRING,
BUTINFO1 TYPE STRING,
BUTINFO2 TYPE STRING,
OBJTYPETXT TYPE STRING,
BOX_OBJ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EMMAD_CASEHDR_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_EMMAD_CASEHDR_STR-CASENR sy-vline 
WA_EMMAD_CASEHDR_STR-CASE_GUID sy-vline 
WA_EMMAD_CASEHDR_STR-RUNID sy-vline 
WA_EMMAD_CASEHDR_STR-INTNR sy-vline 
WA_EMMAD_CASEHDR_STR-LOGSYS sy-vline 
WA_EMMAD_CASEHDR_STR-BPCODE sy-vline 
WA_EMMAD_CASEHDR_STR-BPAREA sy-vline 
WA_EMMAD_CASEHDR_STR-CTYPE sy-vline 
WA_EMMAD_CASEHDR_STR-CCAT sy-vline 
WA_EMMAD_CASEHDR_STR-PRIO sy-vline 
WA_EMMAD_CASEHDR_STR-PRIOORIG sy-vline 
WA_EMMAD_CASEHDR_STR-BRGRU sy-vline 
WA_EMMAD_CASEHDR_STR-STATUS sy-vline 
WA_EMMAD_CASEHDR_STR-MAINOBJTYPE sy-vline 
WA_EMMAD_CASEHDR_STR-MAINOBJKEY sy-vline 
WA_EMMAD_CASEHDR_STR-CURRPROC sy-vline 
WA_EMMAD_CASEHDR_STR-NEWREACODE sy-vline 
WA_EMMAD_CASEHDR_STR-PREVPROC sy-vline 
WA_EMMAD_CASEHDR_STR-REACODE sy-vline 
WA_EMMAD_CASEHDR_STR-CANCODE sy-vline 
WA_EMMAD_CASEHDR_STR-ORIG_DATE sy-vline 
WA_EMMAD_CASEHDR_STR-ORIG_TIME sy-vline 
WA_EMMAD_CASEHDR_STR-DUE_DATE sy-vline 
WA_EMMAD_CASEHDR_STR-DUE_TIME sy-vline 
WA_EMMAD_CASEHDR_STR-CASETXT sy-vline 
WA_EMMAD_CASEHDR_STR-CUSTSTATUS sy-vline 
WA_EMMAD_CASEHDR_STR-CREATED_DATE sy-vline 
WA_EMMAD_CASEHDR_STR-CREATED_TIME sy-vline 
WA_EMMAD_CASEHDR_STR-CREATED_BY sy-vline 
WA_EMMAD_CASEHDR_STR-CHANGED_DATE sy-vline 
WA_EMMAD_CASEHDR_STR-CHANGED_TIME sy-vline 
WA_EMMAD_CASEHDR_STR-CHANGED_BY sy-vline 
WA_EMMAD_CASEHDR_STR-BUTPROC sy-vline 
WA_EMMAD_CASEHDR_STR-BUTOBJ sy-vline 
WA_EMMAD_CASEHDR_STR-BUTNOTES sy-vline 
WA_EMMAD_CASEHDR_STR-BUTMSGS sy-vline 
WA_EMMAD_CASEHDR_STR-BUTIC sy-vline 
WA_EMMAD_CASEHDR_STR-BUT_CCATTXT sy-vline 
WA_EMMAD_CASEHDR_STR-BPCTXT sy-vline 
WA_EMMAD_CASEHDR_STR-BPATXT sy-vline 
WA_EMMAD_CASEHDR_STR-CTTXT sy-vline 
WA_EMMAD_CASEHDR_STR-CCTXT sy-vline 
WA_EMMAD_CASEHDR_STR-CREACTXT sy-vline 
WA_EMMAD_CASEHDR_STR-WMODE sy-vline 
WA_EMMAD_CASEHDR_STR-TEMPLATE_CASE sy-vline 
WA_EMMAD_CASEHDR_STR-CURSORFIELD sy-vline 
WA_EMMAD_CASEHDR_STR-DUE_ICON sy-vline 
WA_EMMAD_CASEHDR_STR-OBJKEY sy-vline 
WA_EMMAD_CASEHDR_STR-FVAL sy-vline 
WA_EMMAD_CASEHDR_STR-OBJTYPE sy-vline 
WA_EMMAD_CASEHDR_STR-REFSTRUCT sy-vline 
WA_EMMAD_CASEHDR_STR-REFFIELD sy-vline 
WA_EMMAD_CASEHDR_STR-CELEMNAME sy-vline 
WA_EMMAD_CASEHDR_STR-EXIT_STATE sy-vline 
WA_EMMAD_CASEHDR_STR-MSGTXT sy-vline 
WA_EMMAD_CASEHDR_STR-INFOPOPUPTITLE sy-vline 
WA_EMMAD_CASEHDR_STR-HEADERLINE1 sy-vline 
WA_EMMAD_CASEHDR_STR-HEADERLINE2 sy-vline 
WA_EMMAD_CASEHDR_STR-QUESTIONLINE1 sy-vline 
WA_EMMAD_CASEHDR_STR-QUESTIONLINE2 sy-vline 
WA_EMMAD_CASEHDR_STR-BUTINFO1 sy-vline 
WA_EMMAD_CASEHDR_STR-BUTINFO2 sy-vline 
WA_EMMAD_CASEHDR_STR-OBJTYPETXT sy-vline 
WA_EMMAD_CASEHDR_STR-BOX_OBJ sy-vline      INTO ld_text SEPARATED BY SPACE.

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