ABAP Select data from SAP table CPROJMLSTELEMCD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPROJMLSTELEMCD
*  INTO TABLE @DATA(IT_CPROJMLSTELEMCD2).
*--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_CPROJMLSTELEMCD INDEX 1 INTO DATA(WA_CPROJMLSTELEMCD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPROJMLSTELEMCD>-MANDT = 1.
<CPROJMLSTELEMCD>-PROJECTUUID = 1.
<CPROJMLSTELEMCD>-DATABASETABLE = 1.
<CPROJMLSTELEMCD>-CHANGEDOCOBJECT = 1.
<CPROJMLSTELEMCD>-CHANGEDOCOBJECTCLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPROJMLSTELEMCD-CHANGEDOCUMENT, sy-vline,
  WA_CPROJMLSTELEMCD-CHANGEDOCTABLEKEY, sy-vline,
  WA_CPROJMLSTELEMCD-CHANGEDOCITEMCHANGETYPE, sy-vline,
  WA_CPROJMLSTELEMCD-CHANGEDOCDATABASETABLEFIELD, sy-vline,
  WA_CPROJMLSTELEMCD-PROJECTSUMMARYTASKUUID, sy-vline,
  WA_CPROJMLSTELEMCD-PROJECT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPROJMLSTELEMCD 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_CPROJMLSTELEMCD 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_CPROJMLSTELEMCD INTO WA_CPROJMLSTELEMCD.


*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 CHANGEDOCOBJECTCLASS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPROJMLSTELEMCD-CHANGEDOCOBJECTCLASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPROJMLSTELEMCD-CHANGEDOCOBJECTCLASS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPROJMLSTELEMCD-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPROJMLSTELEMCD-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_CPROJMLSTELEMCD_STR, 
MANDT TYPE STRING,
PROJECTUUID TYPE STRING,
DATABASETABLE TYPE STRING,
CHANGEDOCOBJECT TYPE STRING,
CHANGEDOCOBJECTCLASS TYPE STRING,
CHANGEDOCUMENT TYPE STRING,
CHANGEDOCTABLEKEY TYPE STRING,
CHANGEDOCITEMCHANGETYPE TYPE STRING,
CHANGEDOCDATABASETABLEFIELD TYPE STRING,
PROJECTSUMMARYTASKUUID TYPE STRING,
PROJECT TYPE STRING,
PROJECTNAME TYPE STRING,
PROJECTELEMENTNAME TYPE STRING,
CHANGEDOCUMENTOLDFIELDVALUE TYPE STRING,
CHANGEDOCOLDFIELDVALUETEXT TYPE STRING,
CHANGEDOCUMENTNEWFIELDVALUE TYPE STRING,
CHANGEDOCNEWFIELDVALUETEXT TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
CONTROLLINGAREA TYPE STRING,
PROFITCENTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPROJMLSTELEMCD_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_CPROJMLSTELEMCD_STR-MANDT sy-vline 
WA_CPROJMLSTELEMCD_STR-PROJECTUUID sy-vline 
WA_CPROJMLSTELEMCD_STR-DATABASETABLE sy-vline 
WA_CPROJMLSTELEMCD_STR-CHANGEDOCOBJECT sy-vline 
WA_CPROJMLSTELEMCD_STR-CHANGEDOCOBJECTCLASS sy-vline 
WA_CPROJMLSTELEMCD_STR-CHANGEDOCUMENT sy-vline 
WA_CPROJMLSTELEMCD_STR-CHANGEDOCTABLEKEY sy-vline 
WA_CPROJMLSTELEMCD_STR-CHANGEDOCITEMCHANGETYPE sy-vline 
WA_CPROJMLSTELEMCD_STR-CHANGEDOCDATABASETABLEFIELD sy-vline 
WA_CPROJMLSTELEMCD_STR-PROJECTSUMMARYTASKUUID sy-vline 
WA_CPROJMLSTELEMCD_STR-PROJECT sy-vline 
WA_CPROJMLSTELEMCD_STR-PROJECTNAME sy-vline 
WA_CPROJMLSTELEMCD_STR-PROJECTELEMENTNAME sy-vline 
WA_CPROJMLSTELEMCD_STR-CHANGEDOCUMENTOLDFIELDVALUE sy-vline 
WA_CPROJMLSTELEMCD_STR-CHANGEDOCOLDFIELDVALUETEXT sy-vline 
WA_CPROJMLSTELEMCD_STR-CHANGEDOCUMENTNEWFIELDVALUE sy-vline 
WA_CPROJMLSTELEMCD_STR-CHANGEDOCNEWFIELDVALUETEXT sy-vline 
WA_CPROJMLSTELEMCD_STR-LASTCHANGEDBYUSER sy-vline 
WA_CPROJMLSTELEMCD_STR-LASTCHANGEDATE sy-vline 
WA_CPROJMLSTELEMCD_STR-LASTCHANGETIME sy-vline 
WA_CPROJMLSTELEMCD_STR-LASTCHANGEDATETIME sy-vline 
WA_CPROJMLSTELEMCD_STR-CONTROLLINGAREA sy-vline 
WA_CPROJMLSTELEMCD_STR-PROFITCENTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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