ABAP Select data from SAP table UCES_CO_MR_DATE 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_MR_DATE 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_MR_DATE. 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_MR_DATE 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_MR_DATE TYPE STANDARD TABLE OF UCES_CO_MR_DATE,
      WA_UCES_CO_MR_DATE TYPE UCES_CO_MR_DATE,
      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_MR_DATE> TYPE UCES_CO_MR_DATE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UCES_CO_MR_DATE
*  INTO TABLE @DATA(IT_UCES_CO_MR_DATE2).
*--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_MR_DATE INDEX 1 INTO DATA(WA_UCES_CO_MR_DATE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UCES_CO_MR_DATE>-MR_DATE = 1.
<UCES_CO_MR_DATE>-ADATSOLL = 1.
<UCES_CO_MR_DATE>-TEXT = 1.
<UCES_CO_MR_DATE>-ABLESGR = 1.
<UCES_CO_MR_DATE>-ABLESGR_TXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UCES_CO_MR_DATE-ABLESART, sy-vline,
  WA_UCES_CO_MR_DATE-ABLESART_TXT, sy-vline,
  WA_UCES_CO_MR_DATE-DATUMDF, sy-vline,
  WA_UCES_CO_MR_DATE-ESTINBILL, sy-vline,
  WA_UCES_CO_MR_DATE-ABSLANP, sy-vline,
  WA_UCES_CO_MR_DATE-DUMMY1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UCES_CO_MR_DATE 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_MR_DATE 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_MR_DATE INTO WA_UCES_CO_MR_DATE.


*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.
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_MR_DATE_STR, 
MR_DATE TYPE STRING,
ADATSOLL TYPE STRING,
TEXT TYPE STRING,
ABLESGR TYPE STRING,
ABLESGR_TXT TYPE STRING,
ABLESART TYPE STRING,
ABLESART_TXT TYPE STRING,
DATUMDF TYPE STRING,
ESTINBILL TYPE STRING,
ABSLANP 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_MR_DATE_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_MR_DATE_STR-MR_DATE sy-vline 
WA_UCES_CO_MR_DATE_STR-ADATSOLL sy-vline 
WA_UCES_CO_MR_DATE_STR-TEXT sy-vline 
WA_UCES_CO_MR_DATE_STR-ABLESGR sy-vline 
WA_UCES_CO_MR_DATE_STR-ABLESGR_TXT sy-vline 
WA_UCES_CO_MR_DATE_STR-ABLESART sy-vline 
WA_UCES_CO_MR_DATE_STR-ABLESART_TXT sy-vline 
WA_UCES_CO_MR_DATE_STR-DATUMDF sy-vline 
WA_UCES_CO_MR_DATE_STR-ESTINBILL sy-vline 
WA_UCES_CO_MR_DATE_STR-ABSLANP sy-vline 
WA_UCES_CO_MR_DATE_STR-DUMMY1 sy-vline 
WA_UCES_CO_MR_DATE_STR-DUMMY2 sy-vline 
WA_UCES_CO_MR_DATE_STR-DUMMY3 sy-vline 
WA_UCES_CO_MR_DATE_STR-DUMMY4 sy-vline 
WA_UCES_CO_MR_DATE_STR-DUMMY5 sy-vline 
WA_UCES_CO_MR_DATE_STR-DUMMY6 sy-vline 
WA_UCES_CO_MR_DATE_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.