ABAP Select data from SAP table INM_TS_INITIATIVE_T_CHG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM INM_TS_INITIATIVE_T_CHG
*  INTO TABLE @DATA(IT_INM_TS_INITIATIVE_T_CHG2).
*--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_INM_TS_INITIATIVE_T_CHG INDEX 1 INTO DATA(WA_INM_TS_INITIATIVE_T_CHG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<INM_TS_INITIATIVE_T_CHG>-EXTERNAL_ID = 1.
<INM_TS_INITIATIVE_T_CHG>-DESCRIPTION = 1.
<INM_TS_INITIATIVE_T_CHG>-TEMPLATE_GUID = 1.
<INM_TS_INITIATIVE_T_CHG>-GLOBAL = 1.
<INM_TS_INITIATIVE_T_CHG>-PORTFOLIO_GUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_INM_TS_INITIATIVE_T_CHG-PARENT_GUID, sy-vline,
  WA_INM_TS_INITIATIVE_T_CHG-INITIATIVE_TYPE, sy-vline,
  WA_INM_TS_INITIATIVE_T_CHG-FORECAST_START, sy-vline,
  WA_INM_TS_INITIATIVE_T_CHG-PLANNED_START, sy-vline,
  WA_INM_TS_INITIATIVE_T_CHG-ACTUAL_START, sy-vline,
  WA_INM_TS_INITIATIVE_T_CHG-FORECAST_FINISH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_INM_TS_INITIATIVE_T_CHG 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_INM_TS_INITIATIVE_T_CHG 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_INM_TS_INITIATIVE_T_CHG INTO WA_INM_TS_INITIATIVE_T_CHG.


*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_INM_TS_INITIATIVE_T_CHG-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INM_TS_INITIATIVE_T_CHG-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_INM_TS_INITIATIVE_T_CHG_STR, 
EXTERNAL_ID TYPE STRING,
DESCRIPTION TYPE STRING,
TEMPLATE_GUID TYPE STRING,
GLOBAL TYPE STRING,
PORTFOLIO_GUID TYPE STRING,
PARENT_GUID TYPE STRING,
INITIATIVE_TYPE TYPE STRING,
FORECAST_START TYPE STRING,
PLANNED_START TYPE STRING,
ACTUAL_START TYPE STRING,
FORECAST_FINISH TYPE STRING,
PLANNED_FINISH TYPE STRING,
ACTUAL_FINISH TYPE STRING,
CATEGORY TYPE STRING,
SUBCATEGORY TYPE STRING,
PTYPE TYPE STRING,
TTYPE TYPE STRING,
RISKA TYPE STRING,
PROBT TYPE STRING,
PROBC TYPE STRING,
COSTD TYPE STRING,
COSTL TYPE STRING,
NPV TYPE STRING,
CURRENCY TYPE STRING,
PERIODTYPE TYPE STRING,
UNIT TYPE STRING,
ESCALATION TYPE STRING,
PRIORITY_GROUP TYPE STRING,
CAP_PERIODTYPE TYPE STRING,
HEADC TYPE STRING,
DISCOUNT_RATE TYPE STRING,
ROI TYPE STRING,
IRR TYPE STRING,
ECV TYPE STRING,
RISK_GROUP TYPE STRING,
RISK_GROUP_D TYPE STRING,
FRCST_BGT_TOTAL TYPE STRING,
FRCST_BGTANNUAL TYPE STRING,
FRCST_COSTTOTAL TYPE STRING,
FRCST_COST_YTD TYPE STRING,
RESP_ORG_UNIT TYPE STRING,
GROUPING TYPE STRING,
SEARCH_FIELD TYPE STRING,
PRIORITY TYPE STRING,
AREA TYPE STRING,
LOCATION TYPE STRING,
RELEASE_DATE TYPE STRING,
STSMA TYPE STRING,
CAUSE TYPE STRING,
RESPONSIBLE_ROLE TYPE STRING,
RESPONSIBLE_ROLE_GUID TYPE STRING,
RESPONSIBLE_NAME TYPE STRING,
EA_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_INM_TS_INITIATIVE_T_CHG_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_INM_TS_INITIATIVE_T_CHG_STR-EXTERNAL_ID sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-DESCRIPTION sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-TEMPLATE_GUID sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-GLOBAL sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-PORTFOLIO_GUID sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-PARENT_GUID sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-INITIATIVE_TYPE sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-FORECAST_START sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-PLANNED_START sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-ACTUAL_START sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-FORECAST_FINISH sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-PLANNED_FINISH sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-ACTUAL_FINISH sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-CATEGORY sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-SUBCATEGORY sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-PTYPE sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-TTYPE sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-RISKA sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-PROBT sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-PROBC sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-COSTD sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-COSTL sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-NPV sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-CURRENCY sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-PERIODTYPE sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-UNIT sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-ESCALATION sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-PRIORITY_GROUP sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-CAP_PERIODTYPE sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-HEADC sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-DISCOUNT_RATE sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-ROI sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-IRR sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-ECV sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-RISK_GROUP sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-RISK_GROUP_D sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-FRCST_BGT_TOTAL sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-FRCST_BGTANNUAL sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-FRCST_COSTTOTAL sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-FRCST_COST_YTD sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-RESP_ORG_UNIT sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-GROUPING sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-SEARCH_FIELD sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-PRIORITY sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-AREA sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-LOCATION sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-RELEASE_DATE sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-STSMA sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-CAUSE sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-RESPONSIBLE_ROLE sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-RESPONSIBLE_ROLE_GUID sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-RESPONSIBLE_NAME sy-vline 
WA_INM_TS_INITIATIVE_T_CHG_STR-EA_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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