ABAP Select data from SAP table CMSTRPROJMNTHCST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMSTRPROJMNTHCST
*  INTO TABLE @DATA(IT_CMSTRPROJMNTHCST2).
*--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_CMSTRPROJMNTHCST INDEX 1 INTO DATA(WA_CMSTRPROJMNTHCST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMSTRPROJMNTHCST>-MANDT = 1.
<CMSTRPROJMNTHCST>-MASTERPROJECTUUID = 1.
<CMSTRPROJMNTHCST>-MASTERPROJECT = 1.
<CMSTRPROJMNTHCST>-MASTERPROJECTTYPE = 1.
<CMSTRPROJMNTHCST>-MASTERPROJECTORGANIZATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMSTRPROJMNTHCST-MASTERPROJECTISCONFIDENTIAL, sy-vline,
  WA_CMSTRPROJMNTHCST-FINANCIALPLANINTERNALID, sy-vline,
  WA_CMSTRPROJMNTHCST-CONTROLLINGOBJECT, sy-vline,
  WA_CMSTRPROJMNTHCST-YEARMONTH, sy-vline,
  WA_CMSTRPROJMNTHCST-FISCALYEAR, sy-vline,
  WA_CMSTRPROJMNTHCST-STATISTICALKEYFIGURE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMSTRPROJMNTHCST 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_CMSTRPROJMNTHCST 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_CMSTRPROJMNTHCST INTO WA_CMSTRPROJMNTHCST.


*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 GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CMSTRPROJMNTHCST-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMSTRPROJMNTHCST-FISCALYEAR.
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_CMSTRPROJMNTHCST_STR, 
MANDT TYPE STRING,
MASTERPROJECTUUID TYPE STRING,
MASTERPROJECT TYPE STRING,
MASTERPROJECTTYPE TYPE STRING,
MASTERPROJECTORGANIZATION TYPE STRING,
MASTERPROJECTISCONFIDENTIAL TYPE STRING,
FINANCIALPLANINTERNALID TYPE STRING,
CONTROLLINGOBJECT TYPE STRING,
YEARMONTH TYPE STRING,
FISCALYEAR TYPE STRING,
STATISTICALKEYFIGURE TYPE STRING,
ACTLCOSTINPROJCRCY TYPE STRING,
ACTLREVNINPROJCRCY TYPE STRING,
QUANTITY TYPE STRING,
BASEUNIT TYPE STRING,
STATISTICALKEYFIGUREQUANTITY TYPE STRING,
STSTCKEYFIGQUANTITYUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMSTRPROJMNTHCST_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_CMSTRPROJMNTHCST_STR-MANDT sy-vline 
WA_CMSTRPROJMNTHCST_STR-MASTERPROJECTUUID sy-vline 
WA_CMSTRPROJMNTHCST_STR-MASTERPROJECT sy-vline 
WA_CMSTRPROJMNTHCST_STR-MASTERPROJECTTYPE sy-vline 
WA_CMSTRPROJMNTHCST_STR-MASTERPROJECTORGANIZATION sy-vline 
WA_CMSTRPROJMNTHCST_STR-MASTERPROJECTISCONFIDENTIAL sy-vline 
WA_CMSTRPROJMNTHCST_STR-FINANCIALPLANINTERNALID sy-vline 
WA_CMSTRPROJMNTHCST_STR-CONTROLLINGOBJECT sy-vline 
WA_CMSTRPROJMNTHCST_STR-YEARMONTH sy-vline 
WA_CMSTRPROJMNTHCST_STR-FISCALYEAR sy-vline 
WA_CMSTRPROJMNTHCST_STR-STATISTICALKEYFIGURE sy-vline 
WA_CMSTRPROJMNTHCST_STR-ACTLCOSTINPROJCRCY sy-vline 
WA_CMSTRPROJMNTHCST_STR-ACTLREVNINPROJCRCY sy-vline 
WA_CMSTRPROJMNTHCST_STR-QUANTITY sy-vline 
WA_CMSTRPROJMNTHCST_STR-BASEUNIT sy-vline 
WA_CMSTRPROJMNTHCST_STR-STATISTICALKEYFIGUREQUANTITY sy-vline 
WA_CMSTRPROJMNTHCST_STR-STSTCKEYFIGQUANTITYUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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