ABAP Select data from SAP table GRMG_SCENARIOS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRMG_SCENARIOS
*  INTO TABLE @DATA(IT_GRMG_SCENARIOS2).
*--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_GRMG_SCENARIOS INDEX 1 INTO DATA(WA_GRMG_SCENARIOS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRMG_SCENARIOS>-SCEN_NAME = 1.
<GRMG_SCENARIOS>-SCEN_VERSION = 1.
<GRMG_SCENARIOS>-SCEN_INST = 1.
<GRMG_SCENARIOS>-SCEN_TYPE = 1.
<GRMG_SCENARIOS>-SCEN_START_URL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRMG_SCENARIOS-SCEN_START_MOD, sy-vline,
  WA_GRMG_SCENARIOS-SCEN_OWNER, sy-vline,
  WA_GRMG_SCENARIOS-SCEN_COMP, sy-vline,
  WA_GRMG_SCENARIOS-SCEN_AGENT, sy-vline,
  WA_GRMG_SCENARIOS-SCEN_FILENM, sy-vline,
  WA_GRMG_SCENARIOS-FILE_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRMG_SCENARIOS 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_GRMG_SCENARIOS 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_GRMG_SCENARIOS INTO WA_GRMG_SCENARIOS.


*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_GRMG_SCENARIOS_STR, 
SCEN_NAME TYPE STRING,
SCEN_VERSION TYPE STRING,
SCEN_INST TYPE STRING,
SCEN_TYPE TYPE STRING,
SCEN_START_URL TYPE STRING,
SCEN_START_MOD TYPE STRING,
SCEN_OWNER TYPE STRING,
SCEN_COMP TYPE STRING,
SCEN_AGENT TYPE STRING,
SCEN_FILENM TYPE STRING,
FILE_DATE TYPE STRING,
FILE_TIME TYPE STRING,
LOAD_DATE TYPE STRING,
LOAD_TIME TYPE STRING,
SCEN_STOP TYPE STRING,
SCEN_DOWNTIME TYPE STRING,
URL_EXTEND1 TYPE STRING,
URL_EXTEND2 TYPE STRING,
URL_EXTEND3 TYPE STRING,
URL_EXTEND4 TYPE STRING,
URL_EXTEND5 TYPE STRING,
URL_EXTEND6 TYPE STRING,
URL_EXTEND7 TYPE STRING,
URL_EXTEND8 TYPE STRING,
DTS_LONG_SID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRMG_SCENARIOS_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_GRMG_SCENARIOS_STR-SCEN_NAME sy-vline 
WA_GRMG_SCENARIOS_STR-SCEN_VERSION sy-vline 
WA_GRMG_SCENARIOS_STR-SCEN_INST sy-vline 
WA_GRMG_SCENARIOS_STR-SCEN_TYPE sy-vline 
WA_GRMG_SCENARIOS_STR-SCEN_START_URL sy-vline 
WA_GRMG_SCENARIOS_STR-SCEN_START_MOD sy-vline 
WA_GRMG_SCENARIOS_STR-SCEN_OWNER sy-vline 
WA_GRMG_SCENARIOS_STR-SCEN_COMP sy-vline 
WA_GRMG_SCENARIOS_STR-SCEN_AGENT sy-vline 
WA_GRMG_SCENARIOS_STR-SCEN_FILENM sy-vline 
WA_GRMG_SCENARIOS_STR-FILE_DATE sy-vline 
WA_GRMG_SCENARIOS_STR-FILE_TIME sy-vline 
WA_GRMG_SCENARIOS_STR-LOAD_DATE sy-vline 
WA_GRMG_SCENARIOS_STR-LOAD_TIME sy-vline 
WA_GRMG_SCENARIOS_STR-SCEN_STOP sy-vline 
WA_GRMG_SCENARIOS_STR-SCEN_DOWNTIME sy-vline 
WA_GRMG_SCENARIOS_STR-URL_EXTEND1 sy-vline 
WA_GRMG_SCENARIOS_STR-URL_EXTEND2 sy-vline 
WA_GRMG_SCENARIOS_STR-URL_EXTEND3 sy-vline 
WA_GRMG_SCENARIOS_STR-URL_EXTEND4 sy-vline 
WA_GRMG_SCENARIOS_STR-URL_EXTEND5 sy-vline 
WA_GRMG_SCENARIOS_STR-URL_EXTEND6 sy-vline 
WA_GRMG_SCENARIOS_STR-URL_EXTEND7 sy-vline 
WA_GRMG_SCENARIOS_STR-URL_EXTEND8 sy-vline 
WA_GRMG_SCENARIOS_STR-DTS_LONG_SID sy-vline      INTO ld_text SEPARATED BY SPACE.

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