ABAP Select data from SAP table FKK_MAD_EMMA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_MAD_EMMA
*  INTO TABLE @DATA(IT_FKK_MAD_EMMA2).
*--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_FKK_MAD_EMMA INDEX 1 INTO DATA(WA_FKK_MAD_EMMA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_MAD_EMMA>-R_BPA = 1.
<FKK_MAD_EMMA>-R_BPCODE = 1.
<FKK_MAD_EMMA>-R_RUNID = 1.
<FKK_MAD_EMMA>-R_TCODE = 1.
<FKK_MAD_EMMA>-R_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_MAD_EMMA-R_TIME, sy-vline,
  WA_FKK_MAD_EMMA-R_USER, sy-vline,
  WA_FKK_MAD_EMMA-R_EXTRID, sy-vline,
  WA_FKK_MAD_EMMA-R_INTNR, sy-vline,
  WA_FKK_MAD_EMMA-R_OBJKEY, sy-vline,
  WA_FKK_MAD_EMMA-T_EMMA_LOGINFO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_MAD_EMMA 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_FKK_MAD_EMMA 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_FKK_MAD_EMMA INTO WA_FKK_MAD_EMMA.


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

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MAD_EMMA-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MAD_EMMA-LOGSYS.
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_FKK_MAD_EMMA_STR, 
R_BPA TYPE STRING,
R_BPCODE TYPE STRING,
R_RUNID TYPE STRING,
R_TCODE TYPE STRING,
R_DATE TYPE STRING,
R_TIME TYPE STRING,
R_USER TYPE STRING,
R_EXTRID TYPE STRING,
R_INTNR TYPE STRING,
R_OBJKEY TYPE STRING,
T_EMMA_LOGINFO TYPE STRING,
S_EMMA_HDR TYPE STRING,
CLIENT TYPE STRING,
RUNID TYPE STRING,
BPCODE TYPE STRING,
BPGUID TYPE STRING,
EXTRUNID TYPE STRING,
VERSION TYPE STRING,
LOGTCODE TYPE STRING,
XPREP TYPE STRING,
XSIMU TYPE STRING,
XPRUN TYPE STRING,
LOGUSER TYPE STRING,
LOGDATE TYPE STRING,
LOGTIME TYPE STRING,
INTNR TYPE STRING,
OBJECT_PROCESS TYPE STRING,
OBJECT_ERROR TYPE STRING,
OBJECT_WARNING TYPE STRING,
OBJECT_SUCCESS TYPE STRING,
MESSAGE_ERROR TYPE STRING,
MESSAGE_WARNING TYPE STRING,
MESSAGE_INFO TYPE STRING,
MESSAGE_COUNT TYPE STRING,
EMMA_CASE TYPE STRING,
EMMA_JOBRUSTATUS TYPE STRING,
CGEN_STATUS TYPE STRING,
PREV_USER TYPE STRING,
PREV_DATE TYPE STRING,
PREV_TIME TYPE STRING,
LOGSYS TYPE STRING,
BRGRU TYPE STRING,
X_PREP TYPE STRING,
X_NPREP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_MAD_EMMA_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_FKK_MAD_EMMA_STR-R_BPA sy-vline 
WA_FKK_MAD_EMMA_STR-R_BPCODE sy-vline 
WA_FKK_MAD_EMMA_STR-R_RUNID sy-vline 
WA_FKK_MAD_EMMA_STR-R_TCODE sy-vline 
WA_FKK_MAD_EMMA_STR-R_DATE sy-vline 
WA_FKK_MAD_EMMA_STR-R_TIME sy-vline 
WA_FKK_MAD_EMMA_STR-R_USER sy-vline 
WA_FKK_MAD_EMMA_STR-R_EXTRID sy-vline 
WA_FKK_MAD_EMMA_STR-R_INTNR sy-vline 
WA_FKK_MAD_EMMA_STR-R_OBJKEY sy-vline 
WA_FKK_MAD_EMMA_STR-T_EMMA_LOGINFO sy-vline 
WA_FKK_MAD_EMMA_STR-S_EMMA_HDR sy-vline 
WA_FKK_MAD_EMMA_STR-CLIENT sy-vline 
WA_FKK_MAD_EMMA_STR-RUNID sy-vline 
WA_FKK_MAD_EMMA_STR-BPCODE sy-vline 
WA_FKK_MAD_EMMA_STR-BPGUID sy-vline 
WA_FKK_MAD_EMMA_STR-EXTRUNID sy-vline 
WA_FKK_MAD_EMMA_STR-VERSION sy-vline 
WA_FKK_MAD_EMMA_STR-LOGTCODE sy-vline 
WA_FKK_MAD_EMMA_STR-XPREP sy-vline 
WA_FKK_MAD_EMMA_STR-XSIMU sy-vline 
WA_FKK_MAD_EMMA_STR-XPRUN sy-vline 
WA_FKK_MAD_EMMA_STR-LOGUSER sy-vline 
WA_FKK_MAD_EMMA_STR-LOGDATE sy-vline 
WA_FKK_MAD_EMMA_STR-LOGTIME sy-vline 
WA_FKK_MAD_EMMA_STR-INTNR sy-vline 
WA_FKK_MAD_EMMA_STR-OBJECT_PROCESS sy-vline 
WA_FKK_MAD_EMMA_STR-OBJECT_ERROR sy-vline 
WA_FKK_MAD_EMMA_STR-OBJECT_WARNING sy-vline 
WA_FKK_MAD_EMMA_STR-OBJECT_SUCCESS sy-vline 
WA_FKK_MAD_EMMA_STR-MESSAGE_ERROR sy-vline 
WA_FKK_MAD_EMMA_STR-MESSAGE_WARNING sy-vline 
WA_FKK_MAD_EMMA_STR-MESSAGE_INFO sy-vline 
WA_FKK_MAD_EMMA_STR-MESSAGE_COUNT sy-vline 
WA_FKK_MAD_EMMA_STR-EMMA_CASE sy-vline 
WA_FKK_MAD_EMMA_STR-EMMA_JOBRUSTATUS sy-vline 
WA_FKK_MAD_EMMA_STR-CGEN_STATUS sy-vline 
WA_FKK_MAD_EMMA_STR-PREV_USER sy-vline 
WA_FKK_MAD_EMMA_STR-PREV_DATE sy-vline 
WA_FKK_MAD_EMMA_STR-PREV_TIME sy-vline 
WA_FKK_MAD_EMMA_STR-LOGSYS sy-vline 
WA_FKK_MAD_EMMA_STR-BRGRU sy-vline 
WA_FKK_MAD_EMMA_STR-X_PREP sy-vline 
WA_FKK_MAD_EMMA_STR-X_NPREP sy-vline      INTO ld_text SEPARATED BY SPACE.

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