ABAP Select data from SAP table DFKKBIXCIT4_LOG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DFKKBIXCIT4_LOG 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 DFKKBIXCIT4_LOG. 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 DFKKBIXCIT4_LOG 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_DFKKBIXCIT4_LOG TYPE STANDARD TABLE OF DFKKBIXCIT4_LOG,
      WA_DFKKBIXCIT4_LOG TYPE DFKKBIXCIT4_LOG,
      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: <DFKKBIXCIT4_LOG> TYPE DFKKBIXCIT4_LOG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DFKKBIXCIT4_LOG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DFKKBIXCIT4_LOG
  INTO TABLE IT_DFKKBIXCIT4_LOG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKBIXCIT4_LOG
*  INTO TABLE @DATA(IT_DFKKBIXCIT4_LOG2).
*--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_DFKKBIXCIT4_LOG INDEX 1 INTO DATA(WA_DFKKBIXCIT4_LOG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DFKKBIXCIT4_LOG ASSIGNING <DFKKBIXCIT4_LOG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKBIXCIT4_LOG>-MANDT = 1.
<DFKKBIXCIT4_LOG>-CITSTATUS = 1.
<DFKKBIXCIT4_LOG>-CITCAT = 1.
<DFKKBIXCIT4_LOG>-RATINGMONTH = 1.
<DFKKBIXCIT4_LOG>-CITIDTYPE = 1.

ENDLOOP.

LOOP AT IT_DFKKBIXCIT4_LOG INTO WA_DFKKBIXCIT4_LOG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKBIXCIT4_LOG-LOGUUID, sy-vline,
  WA_DFKKBIXCIT4_LOG-CITMONTH, sy-vline,
  WA_DFKKBIXCIT4_LOG-CITCRMONTH, sy-vline,
  WA_DFKKBIXCIT4_LOG-RATING_GROUP, sy-vline,
  WA_DFKKBIXCIT4_LOG-RATING_TYPE, sy-vline,
  WA_DFKKBIXCIT4_LOG-SRCTATYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKBIXCIT4_LOG 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_DFKKBIXCIT4_LOG 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_DFKKBIXCIT4_LOG INTO WA_DFKKBIXCIT4_LOG.


*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 PERI, internal->external for field RATINGMONTH
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_DFKKBIXCIT4_LOG-RATINGMONTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKBIXCIT4_LOG-RATINGMONTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field CITMONTH
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_DFKKBIXCIT4_LOG-CITMONTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKBIXCIT4_LOG-CITMONTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field CITCRMONTH
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_DFKKBIXCIT4_LOG-CITCRMONTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKBIXCIT4_LOG-CITCRMONTH.
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_DFKKBIXCIT4_LOG_STR, 
MANDT TYPE STRING,
CITSTATUS TYPE STRING,
CITCAT TYPE STRING,
RATINGMONTH TYPE STRING,
CITIDTYPE TYPE STRING,
LOGUUID TYPE STRING,
CITMONTH TYPE STRING,
CITCRMONTH TYPE STRING,
RATING_GROUP TYPE STRING,
RATING_TYPE TYPE STRING,
SRCTATYPE TYPE STRING,
RELTYPE_PRIMARY TYPE STRING,
SRCTATY_PRIMARY TYPE STRING,
CIT_DBTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKBIXCIT4_LOG_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_DFKKBIXCIT4_LOG_STR-MANDT sy-vline 
WA_DFKKBIXCIT4_LOG_STR-CITSTATUS sy-vline 
WA_DFKKBIXCIT4_LOG_STR-CITCAT sy-vline 
WA_DFKKBIXCIT4_LOG_STR-RATINGMONTH sy-vline 
WA_DFKKBIXCIT4_LOG_STR-CITIDTYPE sy-vline 
WA_DFKKBIXCIT4_LOG_STR-LOGUUID sy-vline 
WA_DFKKBIXCIT4_LOG_STR-CITMONTH sy-vline 
WA_DFKKBIXCIT4_LOG_STR-CITCRMONTH sy-vline 
WA_DFKKBIXCIT4_LOG_STR-RATING_GROUP sy-vline 
WA_DFKKBIXCIT4_LOG_STR-RATING_TYPE sy-vline 
WA_DFKKBIXCIT4_LOG_STR-SRCTATYPE sy-vline 
WA_DFKKBIXCIT4_LOG_STR-RELTYPE_PRIMARY sy-vline 
WA_DFKKBIXCIT4_LOG_STR-SRCTATY_PRIMARY sy-vline 
WA_DFKKBIXCIT4_LOG_STR-CIT_DBTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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