ABAP Select data from SAP table CENGPROJDMND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CENGPROJDMND
*  INTO TABLE @DATA(IT_CENGPROJDMND2).
*--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_CENGPROJDMND INDEX 1 INTO DATA(WA_CENGPROJDMND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CENGPROJDMND>-MANDT = 1.
<CENGPROJDMND>-RESOURCEDEMANDUUID = 1.
<CENGPROJDMND>-RESOURCEDEMAND = 1.
<CENGPROJDMND>-ENGAGEMENTPROJECTSERVICEORG = 1.
<CENGPROJDMND>-ENGAGEMENTPROJECTCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CENGPROJDMND-PROJECTPROFILECODE, sy-vline,
  WA_CENGPROJDMND-ENGMNTPROJECTHEADERCOMPANYCODE, sy-vline,
  WA_CENGPROJDMND-ENGAGEMENTPROJECTCOSTCENTER, sy-vline,
  WA_CENGPROJDMND-PROFITCENTER, sy-vline,
  WA_CENGPROJDMND-PROJECTVISIBILITY, sy-vline,
  WA_CENGPROJDMND-ISMYPROJECT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CENGPROJDMND 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_CENGPROJDMND 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_CENGPROJDMND INTO WA_CENGPROJDMND.


*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 ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CENGPROJDMND-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CENGPROJDMND-PROFITCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CENGPROJDMND-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CENGPROJDMND-UNITOFMEASURE.
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_CENGPROJDMND_STR, 
MANDT TYPE STRING,
RESOURCEDEMANDUUID TYPE STRING,
RESOURCEDEMAND TYPE STRING,
ENGAGEMENTPROJECTSERVICEORG TYPE STRING,
ENGAGEMENTPROJECTCATEGORY TYPE STRING,
PROJECTPROFILECODE TYPE STRING,
ENGMNTPROJECTHEADERCOMPANYCODE TYPE STRING,
ENGAGEMENTPROJECTCOSTCENTER TYPE STRING,
PROFITCENTER TYPE STRING,
PROJECTVISIBILITY TYPE STRING,
ISMYPROJECT TYPE STRING,
ENGAGEMENTPROJECT TYPE STRING,
ENGAGEMENTPROJECTNAME TYPE STRING,
ENGAGEMENTPROJECTSTAGE TYPE STRING,
WORKPACKAGE TYPE STRING,
ENGAGEMENTPROJECTRESOURCE TYPE STRING,
DEMANDSTARTDATE TYPE STRING,
DEMANDENDDATE TYPE STRING,
DEMANDSTAFFINGSTATUS TYPE STRING,
CURRENCY TYPE STRING,
UNITOFMEASURE TYPE STRING,
DELIVERYORGANIZATION TYPE STRING,
DEMANDCOSTAMT TYPE STRING,
DEMANDEFFORTQTY TYPE STRING,
SUPPLYEFFORTQTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CENGPROJDMND_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_CENGPROJDMND_STR-MANDT sy-vline 
WA_CENGPROJDMND_STR-RESOURCEDEMANDUUID sy-vline 
WA_CENGPROJDMND_STR-RESOURCEDEMAND sy-vline 
WA_CENGPROJDMND_STR-ENGAGEMENTPROJECTSERVICEORG sy-vline 
WA_CENGPROJDMND_STR-ENGAGEMENTPROJECTCATEGORY sy-vline 
WA_CENGPROJDMND_STR-PROJECTPROFILECODE sy-vline 
WA_CENGPROJDMND_STR-ENGMNTPROJECTHEADERCOMPANYCODE sy-vline 
WA_CENGPROJDMND_STR-ENGAGEMENTPROJECTCOSTCENTER sy-vline 
WA_CENGPROJDMND_STR-PROFITCENTER sy-vline 
WA_CENGPROJDMND_STR-PROJECTVISIBILITY sy-vline 
WA_CENGPROJDMND_STR-ISMYPROJECT sy-vline 
WA_CENGPROJDMND_STR-ENGAGEMENTPROJECT sy-vline 
WA_CENGPROJDMND_STR-ENGAGEMENTPROJECTNAME sy-vline 
WA_CENGPROJDMND_STR-ENGAGEMENTPROJECTSTAGE sy-vline 
WA_CENGPROJDMND_STR-WORKPACKAGE sy-vline 
WA_CENGPROJDMND_STR-ENGAGEMENTPROJECTRESOURCE sy-vline 
WA_CENGPROJDMND_STR-DEMANDSTARTDATE sy-vline 
WA_CENGPROJDMND_STR-DEMANDENDDATE sy-vline 
WA_CENGPROJDMND_STR-DEMANDSTAFFINGSTATUS sy-vline 
WA_CENGPROJDMND_STR-CURRENCY sy-vline 
WA_CENGPROJDMND_STR-UNITOFMEASURE sy-vline 
WA_CENGPROJDMND_STR-DELIVERYORGANIZATION sy-vline 
WA_CENGPROJDMND_STR-DEMANDCOSTAMT sy-vline 
WA_CENGPROJDMND_STR-DEMANDEFFORTQTY sy-vline 
WA_CENGPROJDMND_STR-SUPPLYEFFORTQTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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