ABAP Select data from SAP table RMSAV_TIME_UOM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMSAV_TIME_UOM
*  INTO TABLE @DATA(IT_RMSAV_TIME_UOM2).
*--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_RMSAV_TIME_UOM INDEX 1 INTO DATA(WA_RMSAV_TIME_UOM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMSAV_TIME_UOM>-MANDT = 1.
<RMSAV_TIME_UOM>-MSEHI = 1.
<RMSAV_TIME_UOM>-MSEHT = 1.
<RMSAV_TIME_UOM>-MSEHL = 1.
<RMSAV_TIME_UOM>-MSSIE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMSAV_TIME_UOM-TIMEX, sy-vline,
  WA_RMSAV_TIME_UOM-LENG, sy-vline,
  WA_RMSAV_TIME_UOM-MASS, sy-vline,
  WA_RMSAV_TIME_UOM-ECURR, sy-vline,
  WA_RMSAV_TIME_UOM-TEMP, sy-vline,
  WA_RMSAV_TIME_UOM-MOLQU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMSAV_TIME_UOM 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_RMSAV_TIME_UOM 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_RMSAV_TIME_UOM INTO WA_RMSAV_TIME_UOM.


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

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RMSAV_TIME_UOM-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMSAV_TIME_UOM-SPRAS.
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_RMSAV_TIME_UOM_STR, 
MANDT TYPE STRING,
MSEHI TYPE STRING,
MSEHT TYPE STRING,
MSEHL TYPE STRING,
MSSIE TYPE STRING,
TIMEX TYPE STRING,
LENG TYPE STRING,
MASS TYPE STRING,
ECURR TYPE STRING,
TEMP TYPE STRING,
MOLQU TYPE STRING,
LIGHT TYPE STRING,
SPRAS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMSAV_TIME_UOM_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_RMSAV_TIME_UOM_STR-MANDT sy-vline 
WA_RMSAV_TIME_UOM_STR-MSEHI sy-vline 
WA_RMSAV_TIME_UOM_STR-MSEHT sy-vline 
WA_RMSAV_TIME_UOM_STR-MSEHL sy-vline 
WA_RMSAV_TIME_UOM_STR-MSSIE sy-vline 
WA_RMSAV_TIME_UOM_STR-TIMEX sy-vline 
WA_RMSAV_TIME_UOM_STR-LENG sy-vline 
WA_RMSAV_TIME_UOM_STR-MASS sy-vline 
WA_RMSAV_TIME_UOM_STR-ECURR sy-vline 
WA_RMSAV_TIME_UOM_STR-TEMP sy-vline 
WA_RMSAV_TIME_UOM_STR-MOLQU sy-vline 
WA_RMSAV_TIME_UOM_STR-LIGHT sy-vline 
WA_RMSAV_TIME_UOM_STR-SPRAS sy-vline      INTO ld_text SEPARATED BY SPACE.

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