ABAP Select data from SAP table DPR_MSP_PROJECT_FIELDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DPR_MSP_PROJECT_FIELDS
*  INTO TABLE @DATA(IT_DPR_MSP_PROJECT_FIELDS2).
*--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_DPR_MSP_PROJECT_FIELDS INDEX 1 INTO DATA(WA_DPR_MSP_PROJECT_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DPR_MSP_PROJECT_FIELDS>-EXTERNAL_ID = 1.
<DPR_MSP_PROJECT_FIELDS>-PROJ_DESCRIPTION = 1.
<DPR_MSP_PROJECT_FIELDS>-PLAN_START = 1.
<DPR_MSP_PROJECT_FIELDS>-PLAN_FINISH = 1.
<DPR_MSP_PROJECT_FIELDS>-CATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DPR_MSP_PROJECT_FIELDS-SUBCATEGORY, sy-vline,
  WA_DPR_MSP_PROJECT_FIELDS-PHASE, sy-vline,
  WA_DPR_MSP_PROJECT_FIELDS-PTYPE, sy-vline,
  WA_DPR_MSP_PROJECT_FIELDS-TTYPE, sy-vline,
  WA_DPR_MSP_PROJECT_FIELDS-APSTAT, sy-vline,
  WA_DPR_MSP_PROJECT_FIELDS-EXSTAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DPR_MSP_PROJECT_FIELDS 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_DPR_MSP_PROJECT_FIELDS 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_DPR_MSP_PROJECT_FIELDS INTO WA_DPR_MSP_PROJECT_FIELDS.


*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_DPR_MSP_PROJECT_FIELDS_STR, 
EXTERNAL_ID TYPE STRING,
PROJ_DESCRIPTION TYPE STRING,
PLAN_START TYPE STRING,
PLAN_FINISH TYPE STRING,
CATEGORY TYPE STRING,
SUBCATEGORY TYPE STRING,
PHASE TYPE STRING,
PTYPE TYPE STRING,
TTYPE TYPE STRING,
APSTAT TYPE STRING,
EXSTAT TYPE STRING,
PPRIO TYPE STRING,
PROBT TYPE STRING,
PROBC TYPE STRING,
HEADC TYPE STRING,
NPV TYPE STRING,
COSTD TYPE STRING,
COSTL TYPE STRING,
CURRENCY TYPE STRING,
LOCATION TYPE STRING,
GEOGRAPHY TYPE STRING,
ACTUAL_WORK TYPE STRING,
PLANNED_WORK TYPE STRING,
BASELINE_START TYPE STRING,
BASELINE_FINISH TYPE STRING,
HOURS_PER_DAY TYPE STRING,
HOURS_PER_WEEK TYPE STRING,
DAYS_PER_MONTH TYPE STRING,
FILENAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DPR_MSP_PROJECT_FIELDS_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_DPR_MSP_PROJECT_FIELDS_STR-EXTERNAL_ID sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-PROJ_DESCRIPTION sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-PLAN_START sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-PLAN_FINISH sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-CATEGORY sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-SUBCATEGORY sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-PHASE sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-PTYPE sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-TTYPE sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-APSTAT sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-EXSTAT sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-PPRIO sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-PROBT sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-PROBC sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-HEADC sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-NPV sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-COSTD sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-COSTL sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-CURRENCY sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-LOCATION sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-GEOGRAPHY sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-ACTUAL_WORK sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-PLANNED_WORK sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-BASELINE_START sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-BASELINE_FINISH sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-HOURS_PER_DAY sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-HOURS_PER_WEEK sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-DAYS_PER_MONTH sy-vline 
WA_DPR_MSP_PROJECT_FIELDS_STR-FILENAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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