ABAP Select data from SAP table CENTPREPRJPLAN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CENTPREPRJPLAN
*  INTO TABLE @DATA(IT_CENTPREPRJPLAN2).
*--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_CENTPREPRJPLAN INDEX 1 INTO DATA(WA_CENTPREPRJPLAN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CENTPREPRJPLAN>-MANDT = 1.
<CENTPREPRJPLAN>-PROJECTUUID = 1.
<CENTPREPRJPLAN>-PROJECTSUMMARYTASKUUID = 1.
<CENTPREPRJPLAN>-PROJECTINTERNALID = 1.
<CENTPREPRJPLAN>-PROJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CENTPREPRJPLAN-PROJECTNAME, sy-vline,
  WA_CENTPREPRJPLAN-PROCESSINGSTATUS, sy-vline,
  WA_CENTPREPRJPLAN-EARLIESTSTARTDATE, sy-vline,
  WA_CENTPREPRJPLAN-LATESTFINISHDATE, sy-vline,
  WA_CENTPREPRJPLAN-PROCESSINGSTATUSTEXT, sy-vline,
  WA_CENTPREPRJPLAN-PROJECTPROFILECODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CENTPREPRJPLAN 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_CENTPREPRJPLAN 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_CENTPREPRJPLAN INTO WA_CENTPREPRJPLAN.


*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_CENTPREPRJPLAN-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CENTPREPRJPLAN-PROFITCENTER.
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_CENTPREPRJPLAN_STR, 
MANDT TYPE STRING,
PROJECTUUID TYPE STRING,
PROJECTSUMMARYTASKUUID TYPE STRING,
PROJECTINTERNALID TYPE STRING,
PROJECT TYPE STRING,
PROJECTNAME TYPE STRING,
PROCESSINGSTATUS TYPE STRING,
EARLIESTSTARTDATE TYPE STRING,
LATESTFINISHDATE TYPE STRING,
PROCESSINGSTATUSTEXT TYPE STRING,
PROJECTPROFILECODE TYPE STRING,
PROJECTPROFILECODETEXT TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
ENTPROJECTDATAMODELVERSION TYPE STRING,
PROJECTMANAGERUUID TYPE STRING,
PROFITCENTER TYPE STRING,
CONTROLLINGAREA TYPE STRING,
PERSONFULLNAME TYPE STRING,
WBSELEMENTOBJECT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CENTPREPRJPLAN_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_CENTPREPRJPLAN_STR-MANDT sy-vline 
WA_CENTPREPRJPLAN_STR-PROJECTUUID sy-vline 
WA_CENTPREPRJPLAN_STR-PROJECTSUMMARYTASKUUID sy-vline 
WA_CENTPREPRJPLAN_STR-PROJECTINTERNALID sy-vline 
WA_CENTPREPRJPLAN_STR-PROJECT sy-vline 
WA_CENTPREPRJPLAN_STR-PROJECTNAME sy-vline 
WA_CENTPREPRJPLAN_STR-PROCESSINGSTATUS sy-vline 
WA_CENTPREPRJPLAN_STR-EARLIESTSTARTDATE sy-vline 
WA_CENTPREPRJPLAN_STR-LATESTFINISHDATE sy-vline 
WA_CENTPREPRJPLAN_STR-PROCESSINGSTATUSTEXT sy-vline 
WA_CENTPREPRJPLAN_STR-PROJECTPROFILECODE sy-vline 
WA_CENTPREPRJPLAN_STR-PROJECTPROFILECODETEXT sy-vline 
WA_CENTPREPRJPLAN_STR-WBSELEMENTINTERNALID sy-vline 
WA_CENTPREPRJPLAN_STR-ENTPROJECTDATAMODELVERSION sy-vline 
WA_CENTPREPRJPLAN_STR-PROJECTMANAGERUUID sy-vline 
WA_CENTPREPRJPLAN_STR-PROFITCENTER sy-vline 
WA_CENTPREPRJPLAN_STR-CONTROLLINGAREA sy-vline 
WA_CENTPREPRJPLAN_STR-PERSONFULLNAME sy-vline 
WA_CENTPREPRJPLAN_STR-WBSELEMENTOBJECT sy-vline      INTO ld_text SEPARATED BY SPACE.

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