ABAP Select data from SAP table /MRSS/T_SGR_CUST_DATES into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP /MRSS/T_SGR_CUST_DATES 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 /MRSS/T_SGR_CUST_DATES. 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 /MRSS/T_SGR_CUST_DATES 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_/MRSS/T_SGR_CUST_DATES TYPE STANDARD TABLE OF /MRSS/T_SGR_CUST_DATES,
      WA_/MRSS/T_SGR_CUST_DATES TYPE /MRSS/T_SGR_CUST_DATES,
      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: </MRSS/T_SGR_CUST_DATES> TYPE /MRSS/T_SGR_CUST_DATES.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /MRSS/T_SGR_CUST_DATES
  INTO TABLE IT_/MRSS/T_SGR_CUST_DATES.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MRSS/T_SGR_CUST_DATES
*  INTO TABLE @DATA(IT_/MRSS/T_SGR_CUST_DATES2).
*--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_/MRSS/T_SGR_CUST_DATES INDEX 1 INTO DATA(WA_/MRSS/T_SGR_CUST_DATES2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/MRSS/T_SGR_CUST_DATES ASSIGNING </MRSS/T_SGR_CUST_DATES>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MRSS/T_SGR_CUST_DATES>-ROOT_DATE = 1.
</MRSS/T_SGR_CUST_DATES>-END_DATE = 1.
</MRSS/T_SGR_CUST_DATES>-TIME_FRAME = 1.
</MRSS/T_SGR_CUST_DATES>-DISP_GRANULARITY = 1.
</MRSS/T_SGR_CUST_DATES>-GRAPH_TYPE = 1.

ENDLOOP.

LOOP AT IT_/MRSS/T_SGR_CUST_DATES INTO WA_/MRSS/T_SGR_CUST_DATES.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MRSS/T_SGR_CUST_DATES-GRAPH_MULTI, sy-vline,
  WA_/MRSS/T_SGR_CUST_DATES-GRAPH_DIMENSION, sy-vline,
  WA_/MRSS/T_SGR_CUST_DATES-GRAPH_OVERLOAD, sy-vline,
  WA_/MRSS/T_SGR_CUST_DATES-ROOT_DATE_TEMPL, sy-vline,
  WA_/MRSS/T_SGR_CUST_DATES-UNIT, sy-vline,
  WA_/MRSS/T_SGR_CUST_DATES-UNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MRSS/T_SGR_CUST_DATES 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_/MRSS/T_SGR_CUST_DATES 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_/MRSS/T_SGR_CUST_DATES INTO WA_/MRSS/T_SGR_CUST_DATES.


*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 UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/MRSS/T_SGR_CUST_DATES-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MRSS/T_SGR_CUST_DATES-UNIT.
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_/MRSS/T_SGR_CUST_DATES_STR, 
ROOT_DATE TYPE STRING,
END_DATE TYPE STRING,
TIME_FRAME TYPE STRING,
DISP_GRANULARITY TYPE STRING,
GRAPH_TYPE TYPE STRING,
GRAPH_MULTI TYPE STRING,
GRAPH_DIMENSION TYPE STRING,
GRAPH_OVERLOAD TYPE STRING,
ROOT_DATE_TEMPL TYPE STRING,
UNIT TYPE STRING,
UNIT TYPE STRING,
UNIT_ISO TYPE STRING,
UNIT_EXT3 TYPE STRING,
UNIT_EXT6 TYPE STRING,
UNIT_TEXT TYPE STRING,
UNIT_TEXT_SHORT TYPE STRING,
DIMENSION TYPE STRING,
FACTOR TYPE STRING,
WORKLIST TYPE STRING,
RESOURCES TYPE STRING,
GRAPH_LONG_DATE TYPE STRING,
GRAPH_SHOW_DATE TYPE STRING,
GRAPH_SHOW_DAY TYPE STRING,
NO_AVAILABILITY TYPE STRING,
GRAPH_ABSOLUT TYPE STRING,
DATA_BEG_DATE TYPE STRING,
DATA_END_DATE TYPE STRING,
POPUP_MODE TYPE STRING,
CUMMULATE_DATA TYPE STRING,
FIXED_SCALE TYPE STRING,
SKIP_NON_WORKING_DAY TYPE STRING,
SKIP_SUNDAY TYPE STRING,
SCALING TYPE STRING,
GRAPH_TEXT_TEMPLATE TYPE STRING,
SOURCE TYPE STRING,
GRAPH_MODE TYPE STRING,
QUAL_FILTER_ACTIVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MRSS/T_SGR_CUST_DATES_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_/MRSS/T_SGR_CUST_DATES_STR-ROOT_DATE sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-END_DATE sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-TIME_FRAME sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-DISP_GRANULARITY sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-GRAPH_TYPE sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-GRAPH_MULTI sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-GRAPH_DIMENSION sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-GRAPH_OVERLOAD sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-ROOT_DATE_TEMPL sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-UNIT sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-UNIT sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-UNIT_ISO sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-UNIT_EXT3 sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-UNIT_EXT6 sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-UNIT_TEXT sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-UNIT_TEXT_SHORT sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-DIMENSION sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-FACTOR sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-WORKLIST sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-RESOURCES sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-GRAPH_LONG_DATE sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-GRAPH_SHOW_DATE sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-GRAPH_SHOW_DAY sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-NO_AVAILABILITY sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-GRAPH_ABSOLUT sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-DATA_BEG_DATE sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-DATA_END_DATE sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-POPUP_MODE sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-CUMMULATE_DATA sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-FIXED_SCALE sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-SKIP_NON_WORKING_DAY sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-SKIP_SUNDAY sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-SCALING sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-GRAPH_TEXT_TEMPLATE sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-SOURCE sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-GRAPH_MODE sy-vline 
WA_/MRSS/T_SGR_CUST_DATES_STR-QUAL_FILTER_ACTIVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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