ABAP Select data from SAP table UCES_CO_HIST_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UCES_CO_HIST_DATA
*  INTO TABLE @DATA(IT_UCES_CO_HIST_DATA2).
*--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_UCES_CO_HIST_DATA INDEX 1 INTO DATA(WA_UCES_CO_HIST_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UCES_CO_HIST_DATA>-TEXT = 1.
<UCES_CO_HIST_DATA>-GERNR = 1.
<UCES_CO_HIST_DATA>-V_ZWSTAND = 1.
<UCES_CO_HIST_DATA>-N_ZWSTAND = 1.
<UCES_CO_HIST_DATA>-MASSREAD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UCES_CO_HIST_DATA-MASSBILL, sy-vline,
  WA_UCES_CO_HIST_DATA-ADATTATS, sy-vline,
  WA_UCES_CO_HIST_DATA-ATIMTATS, sy-vline,
  WA_UCES_CO_HIST_DATA-ABLESART, sy-vline,
  WA_UCES_CO_HIST_DATA-ABLHINW, sy-vline,
  WA_UCES_CO_HIST_DATA-ISTABLART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UCES_CO_HIST_DATA 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_UCES_CO_HIST_DATA 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_UCES_CO_HIST_DATA INTO WA_UCES_CO_HIST_DATA.


*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 GERNR, internal->external for field GERNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_UCES_CO_HIST_DATA-GERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UCES_CO_HIST_DATA-GERNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MASSREAD
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_UCES_CO_HIST_DATA-MASSREAD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UCES_CO_HIST_DATA-MASSREAD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MASSBILL
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_UCES_CO_HIST_DATA-MASSBILL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UCES_CO_HIST_DATA-MASSBILL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HH_MM, internal->external for field ATIMTATS
CALL FUNCTION 'CONVERSION_EXIT_HH_MM_OUTPUT'
  EXPORTING
    input =                      WA_UCES_CO_HIST_DATA-ATIMTATS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UCES_CO_HIST_DATA-ATIMTATS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit LUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_LUNIT_OUTPUT'
  EXPORTING
    input =                      WA_UCES_CO_HIST_DATA-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UCES_CO_HIST_DATA-MEINS.
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_UCES_CO_HIST_DATA_STR, 
TEXT TYPE STRING,
GERNR TYPE STRING,
V_ZWSTAND TYPE STRING,
N_ZWSTAND TYPE STRING,
MASSREAD TYPE STRING,
MASSBILL TYPE STRING,
ADATTATS TYPE STRING,
ATIMTATS TYPE STRING,
ABLESART TYPE STRING,
ABLHINW TYPE STRING,
ISTABLART TYPE STRING,
ABLESTYP TYPE STRING,
SPARTYP TYPE STRING,
SPARTYP_TXT TYPE STRING,
ZWNUMMER TYPE STRING,
ZWART TYPE STRING,
ZWART_TXT TYPE STRING,
MEINS TYPE STRING,
KENNZIFF TYPE STRING,
DUMMY1 TYPE STRING,
DUMMY2 TYPE STRING,
DUMMY3 TYPE STRING,
DUMMY4 TYPE STRING,
DUMMY5 TYPE STRING,
DUMMY6 TYPE STRING,
DUMMY7 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UCES_CO_HIST_DATA_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_UCES_CO_HIST_DATA_STR-TEXT sy-vline 
WA_UCES_CO_HIST_DATA_STR-GERNR sy-vline 
WA_UCES_CO_HIST_DATA_STR-V_ZWSTAND sy-vline 
WA_UCES_CO_HIST_DATA_STR-N_ZWSTAND sy-vline 
WA_UCES_CO_HIST_DATA_STR-MASSREAD sy-vline 
WA_UCES_CO_HIST_DATA_STR-MASSBILL sy-vline 
WA_UCES_CO_HIST_DATA_STR-ADATTATS sy-vline 
WA_UCES_CO_HIST_DATA_STR-ATIMTATS sy-vline 
WA_UCES_CO_HIST_DATA_STR-ABLESART sy-vline 
WA_UCES_CO_HIST_DATA_STR-ABLHINW sy-vline 
WA_UCES_CO_HIST_DATA_STR-ISTABLART sy-vline 
WA_UCES_CO_HIST_DATA_STR-ABLESTYP sy-vline 
WA_UCES_CO_HIST_DATA_STR-SPARTYP sy-vline 
WA_UCES_CO_HIST_DATA_STR-SPARTYP_TXT sy-vline 
WA_UCES_CO_HIST_DATA_STR-ZWNUMMER sy-vline 
WA_UCES_CO_HIST_DATA_STR-ZWART sy-vline 
WA_UCES_CO_HIST_DATA_STR-ZWART_TXT sy-vline 
WA_UCES_CO_HIST_DATA_STR-MEINS sy-vline 
WA_UCES_CO_HIST_DATA_STR-KENNZIFF sy-vline 
WA_UCES_CO_HIST_DATA_STR-DUMMY1 sy-vline 
WA_UCES_CO_HIST_DATA_STR-DUMMY2 sy-vline 
WA_UCES_CO_HIST_DATA_STR-DUMMY3 sy-vline 
WA_UCES_CO_HIST_DATA_STR-DUMMY4 sy-vline 
WA_UCES_CO_HIST_DATA_STR-DUMMY5 sy-vline 
WA_UCES_CO_HIST_DATA_STR-DUMMY6 sy-vline 
WA_UCES_CO_HIST_DATA_STR-DUMMY7 sy-vline      INTO ld_text SEPARATED BY SPACE.

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