ABAP Select data from SAP table CPRMAINMLSTNCD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPRMAINMLSTNCD
*  INTO TABLE @DATA(IT_CPRMAINMLSTNCD2).
*--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_CPRMAINMLSTNCD INDEX 1 INTO DATA(WA_CPRMAINMLSTNCD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPRMAINMLSTNCD>-MANDT = 1.
<CPRMAINMLSTNCD>-PROJECTUUID = 1.
<CPRMAINMLSTNCD>-PROJECTINTERNALID = 1.
<CPRMAINMLSTNCD>-PRIORITYCODE = 1.
<CPRMAINMLSTNCD>-STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPRMAINMLSTNCD-PROJECTTYPE, sy-vline,
  WA_CPRMAINMLSTNCD-INTERVALSTATUSCODE, sy-vline,
  WA_CPRMAINMLSTNCD-STATUSCOUNT, sy-vline,
  WA_CPRMAINMLSTNCD-CALENDARWEEK, sy-vline,
  WA_CPRMAINMLSTNCD-PROJECT, sy-vline,
  WA_CPRMAINMLSTNCD-BUSINESSPARTNERFULLNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPRMAINMLSTNCD 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_CPRMAINMLSTNCD 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_CPRMAINMLSTNCD INTO WA_CPRMAINMLSTNCD.


*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_CPRMAINMLSTNCD-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPRMAINMLSTNCD-PROFITCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WBSELEMENTPROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPRMAINMLSTNCD-WBSELEMENTPROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPRMAINMLSTNCD-WBSELEMENTPROFITCENTER.
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_CPRMAINMLSTNCD_STR, 
MANDT TYPE STRING,
PROJECTUUID TYPE STRING,
PROJECTINTERNALID TYPE STRING,
PRIORITYCODE TYPE STRING,
STATUS TYPE STRING,
PROJECTTYPE TYPE STRING,
INTERVALSTATUSCODE TYPE STRING,
STATUSCOUNT TYPE STRING,
CALENDARWEEK TYPE STRING,
PROJECT TYPE STRING,
BUSINESSPARTNERFULLNAME TYPE STRING,
PROCESSINGSTATUS TYPE STRING,
NEXTESSENTIALMLSTNDATE TYPE STRING,
PROJECTSUMMARYTASKUUID TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
ISMYPROJECT TYPE STRING,
ISPROJECTSTEERINGCOMMITTEEMBR TYPE STRING,
CONTROLLINGAREA TYPE STRING,
PROFITCENTER TYPE STRING,
WBSELEMENTPROFITCENTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPRMAINMLSTNCD_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_CPRMAINMLSTNCD_STR-MANDT sy-vline 
WA_CPRMAINMLSTNCD_STR-PROJECTUUID sy-vline 
WA_CPRMAINMLSTNCD_STR-PROJECTINTERNALID sy-vline 
WA_CPRMAINMLSTNCD_STR-PRIORITYCODE sy-vline 
WA_CPRMAINMLSTNCD_STR-STATUS sy-vline 
WA_CPRMAINMLSTNCD_STR-PROJECTTYPE sy-vline 
WA_CPRMAINMLSTNCD_STR-INTERVALSTATUSCODE sy-vline 
WA_CPRMAINMLSTNCD_STR-STATUSCOUNT sy-vline 
WA_CPRMAINMLSTNCD_STR-CALENDARWEEK sy-vline 
WA_CPRMAINMLSTNCD_STR-PROJECT sy-vline 
WA_CPRMAINMLSTNCD_STR-BUSINESSPARTNERFULLNAME sy-vline 
WA_CPRMAINMLSTNCD_STR-PROCESSINGSTATUS sy-vline 
WA_CPRMAINMLSTNCD_STR-NEXTESSENTIALMLSTNDATE sy-vline 
WA_CPRMAINMLSTNCD_STR-PROJECTSUMMARYTASKUUID sy-vline 
WA_CPRMAINMLSTNCD_STR-AUTHORIZATIONGROUP sy-vline 
WA_CPRMAINMLSTNCD_STR-ISMYPROJECT sy-vline 
WA_CPRMAINMLSTNCD_STR-ISPROJECTSTEERINGCOMMITTEEMBR sy-vline 
WA_CPRMAINMLSTNCD_STR-CONTROLLINGAREA sy-vline 
WA_CPRMAINMLSTNCD_STR-PROFITCENTER sy-vline 
WA_CPRMAINMLSTNCD_STR-WBSELEMENTPROFITCENTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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