ABAP Select data from SAP table ISLM2_S_PRED_SCENARIO01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISLM2_S_PRED_SCENARIO01 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 ISLM2_S_PRED_SCENARIO01. 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 ISLM2_S_PRED_SCENARIO01 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_ISLM2_S_PRED_SCENARIO01 TYPE STANDARD TABLE OF ISLM2_S_PRED_SCENARIO01,
      WA_ISLM2_S_PRED_SCENARIO01 TYPE ISLM2_S_PRED_SCENARIO01,
      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: <ISLM2_S_PRED_SCENARIO01> TYPE ISLM2_S_PRED_SCENARIO01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ISLM2_S_PRED_SCENARIO01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ISLM2_S_PRED_SCENARIO01
  INTO TABLE IT_ISLM2_S_PRED_SCENARIO01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISLM2_S_PRED_SCENARIO01
*  INTO TABLE @DATA(IT_ISLM2_S_PRED_SCENARIO012).
*--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_ISLM2_S_PRED_SCENARIO01 INDEX 1 INTO DATA(WA_ISLM2_S_PRED_SCENARIO012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ISLM2_S_PRED_SCENARIO01 ASSIGNING <ISLM2_S_PRED_SCENARIO01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISLM2_S_PRED_SCENARIO01>-GUID = 1.
<ISLM2_S_PRED_SCENARIO01>-NAME = 1.
<ISLM2_S_PRED_SCENARIO01>-PARENT = 1.
<ISLM2_S_PRED_SCENARIO01>-DESCRIPTION = 1.
<ISLM2_S_PRED_SCENARIO01>-PATH = 1.

ENDLOOP.

LOOP AT IT_ISLM2_S_PRED_SCENARIO01 INTO WA_ISLM2_S_PRED_SCENARIO01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISLM2_S_PRED_SCENARIO01-SCENARIO_TYPE, sy-vline,
  WA_ISLM2_S_PRED_SCENARIO01-TYPE, sy-vline,
  WA_ISLM2_S_PRED_SCENARIO01-CREATION_TIME, sy-vline,
  WA_ISLM2_S_PRED_SCENARIO01-LAST_MODIFICATION_TIME, sy-vline,
  WA_ISLM2_S_PRED_SCENARIO01-SIGNATURE, sy-vline,
  WA_ISLM2_S_PRED_SCENARIO01-GUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISLM2_S_PRED_SCENARIO01 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_ISLM2_S_PRED_SCENARIO01 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_ISLM2_S_PRED_SCENARIO01 INTO WA_ISLM2_S_PRED_SCENARIO01.


*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_ISLM2_S_PRED_SCENARIO01_STR, 
GUID TYPE STRING,
NAME TYPE STRING,
PARENT TYPE STRING,
DESCRIPTION TYPE STRING,
PATH TYPE STRING,
SCENARIO_TYPE TYPE STRING,
TYPE TYPE STRING,
CREATION_TIME TYPE STRING,
LAST_MODIFICATION_TIME TYPE STRING,
SIGNATURE TYPE STRING,
GUID TYPE STRING,
INPUTS TYPE STRING,
OUTPUTS TYPE STRING,
PARAMETERS TYPE STRING,
BINDINGS TYPE STRING,
GUID TYPE STRING,
INPUTS TYPE STRING,
PARAMETERS TYPE STRING,
EXTENSIBLE TYPE STRING,
SCENARIO_TECH TYPE STRING,
OBJECT_NAME TYPE STRING,
SCENARIO_TECH_ID TYPE STRING,
ISM_VERSION TYPE STRING,
ADDITIONAL_INFO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISLM2_S_PRED_SCENARIO01_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_ISLM2_S_PRED_SCENARIO01_STR-GUID sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-NAME sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-PARENT sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-DESCRIPTION sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-PATH sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-SCENARIO_TYPE sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-TYPE sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-CREATION_TIME sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-LAST_MODIFICATION_TIME sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-SIGNATURE sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-GUID sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-INPUTS sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-OUTPUTS sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-PARAMETERS sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-BINDINGS sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-GUID sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-INPUTS sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-PARAMETERS sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-EXTENSIBLE sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-SCENARIO_TECH sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-OBJECT_NAME sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-SCENARIO_TECH_ID sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-ISM_VERSION sy-vline 
WA_ISLM2_S_PRED_SCENARIO01_STR-ADDITIONAL_INFO sy-vline      INTO ld_text SEPARATED BY SPACE.

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