ABAP Select data from SAP table UMB_YS_MEAS_SELCON 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_MEAS_SELCON 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_MEAS_SELCON. 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_MEAS_SELCON 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_MEAS_SELCON TYPE STANDARD TABLE OF UMB_YS_MEAS_SELCON,
      WA_UMB_YS_MEAS_SELCON TYPE UMB_YS_MEAS_SELCON,
      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_MEAS_SELCON> TYPE UMB_YS_MEAS_SELCON.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UMB_YS_MEAS_SELCON
*  INTO TABLE @DATA(IT_UMB_YS_MEAS_SELCON2).
*--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_MEAS_SELCON INDEX 1 INTO DATA(WA_UMB_YS_MEAS_SELCON2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UMB_YS_MEAS_SELCON>-COL = 1.
<UMB_YS_MEAS_SELCON>-TCHANM = 1.
<UMB_YS_MEAS_SELCON>-ICHANM = 1.
<UMB_YS_MEAS_SELCON>-SELNO = 1.
<UMB_YS_MEAS_SELCON>-SELTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UMB_YS_MEAS_SELCON-VAR, sy-vline,
  WA_UMB_YS_MEAS_SELCON-AGGFLG, sy-vline,
  WA_UMB_YS_MEAS_SELCON-SIGN, sy-vline,
  WA_UMB_YS_MEAS_SELCON-OPER, sy-vline,
  WA_UMB_YS_MEAS_SELCON-LOW, sy-vline,
  WA_UMB_YS_MEAS_SELCON-LOWBW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UMB_YS_MEAS_SELCON 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_MEAS_SELCON 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_MEAS_SELCON INTO WA_UMB_YS_MEAS_SELCON.


*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_MEAS_SELCON_STR, 
COL TYPE STRING,
TCHANM TYPE STRING,
ICHANM TYPE STRING,
SELNO TYPE STRING,
SELTYPE TYPE STRING,
VAR TYPE STRING,
AGGFLG TYPE STRING,
SIGN TYPE STRING,
OPER TYPE STRING,
LOW TYPE STRING,
LOWBW TYPE STRING,
LOWBW_EXT TYPE STRING,
HIGH TYPE STRING,
HIGHBW TYPE STRING,
HIGHBW_EXT TYPE STRING,
HINAME TYPE STRING,
HINAMEBW TYPE STRING,
HINODE TYPE STRING,
HINODEBW TYPE STRING,
HINODEBW_EXT TYPE STRING,
HIVERS TYPE STRING,
HIDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UMB_YS_MEAS_SELCON_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_MEAS_SELCON_STR-COL sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-TCHANM sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-ICHANM sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-SELNO sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-SELTYPE sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-VAR sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-AGGFLG sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-SIGN sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-OPER sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-LOW sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-LOWBW sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-LOWBW_EXT sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-HIGH sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-HIGHBW sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-HIGHBW_EXT sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-HINAME sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-HINAMEBW sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-HINODE sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-HINODEBW sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-HINODEBW_EXT sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-HIVERS sy-vline 
WA_UMB_YS_MEAS_SELCON_STR-HIDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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