ABAP Select data from SAP table UMB_YS_MC100_P into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP UMB_YS_MC100_P 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 UMB_YS_MC100_P. 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 UMB_YS_MC100_P 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_UMB_YS_MC100_P TYPE STANDARD TABLE OF UMB_YS_MC100_P,
      WA_UMB_YS_MC100_P TYPE UMB_YS_MC100_P,
      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: <UMB_YS_MC100_P> TYPE UMB_YS_MC100_P.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_UMB_YS_MC100_P.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM UMB_YS_MC100_P
  INTO TABLE IT_UMB_YS_MC100_P.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UMB_YS_MC100_P
*  INTO TABLE @DATA(IT_UMB_YS_MC100_P2).
*--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_UMB_YS_MC100_P INDEX 1 INTO DATA(WA_UMB_YS_MC100_P2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_UMB_YS_MC100_P ASSIGNING <UMB_YS_MC100_P>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UMB_YS_MC100_P>-SCARD = 1.
<UMB_YS_MC100_P>-MEAS = 1.
<UMB_YS_MC100_P>-COL = 1.
<UMB_YS_MC100_P>-WRT = 1.
<UMB_YS_MC100_P>-RFCDEST = 1.

ENDLOOP.

LOOP AT IT_UMB_YS_MC100_P INTO WA_UMB_YS_MC100_P.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UMB_YS_MC100_P-ICUBE, sy-vline,
  WA_UMB_YS_MC100_P-TCUBE, sy-vline,
  WA_UMB_YS_MC100_P-IQUERY, sy-vline,
  WA_UMB_YS_MC100_P-TQUERY, sy-vline,
  WA_UMB_YS_MC100_P-IKFNM, sy-vline,
  WA_UMB_YS_MC100_P-TKFNM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UMB_YS_MC100_P 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_UMB_YS_MC100_P 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_UMB_YS_MC100_P INTO WA_UMB_YS_MC100_P.


*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_UMB_YS_MC100_P_STR, 
SCARD TYPE STRING,
MEAS TYPE STRING,
COL TYPE STRING,
WRT TYPE STRING,
RFCDEST TYPE STRING,
ICUBE TYPE STRING,
TCUBE TYPE STRING,
IQUERY TYPE STRING,
TQUERY TYPE STRING,
IKFNM TYPE STRING,
TKFNM TYPE STRING,
PERIODICITY TYPE STRING,
YTD TYPE STRING,
YTD_PERIODICITY TYPE STRING,
TIMESTMP TYPE STRING,
BW_EXCEPTION TYPE STRING,
CHA_TAB TYPE STRING,
VAR_TAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UMB_YS_MC100_P_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_UMB_YS_MC100_P_STR-SCARD sy-vline 
WA_UMB_YS_MC100_P_STR-MEAS sy-vline 
WA_UMB_YS_MC100_P_STR-COL sy-vline 
WA_UMB_YS_MC100_P_STR-WRT sy-vline 
WA_UMB_YS_MC100_P_STR-RFCDEST sy-vline 
WA_UMB_YS_MC100_P_STR-ICUBE sy-vline 
WA_UMB_YS_MC100_P_STR-TCUBE sy-vline 
WA_UMB_YS_MC100_P_STR-IQUERY sy-vline 
WA_UMB_YS_MC100_P_STR-TQUERY sy-vline 
WA_UMB_YS_MC100_P_STR-IKFNM sy-vline 
WA_UMB_YS_MC100_P_STR-TKFNM sy-vline 
WA_UMB_YS_MC100_P_STR-PERIODICITY sy-vline 
WA_UMB_YS_MC100_P_STR-YTD sy-vline 
WA_UMB_YS_MC100_P_STR-YTD_PERIODICITY sy-vline 
WA_UMB_YS_MC100_P_STR-TIMESTMP sy-vline 
WA_UMB_YS_MC100_P_STR-BW_EXCEPTION sy-vline 
WA_UMB_YS_MC100_P_STR-CHA_TAB sy-vline 
WA_UMB_YS_MC100_P_STR-VAR_TAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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