ABAP Select data from SAP table CJVPROJ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CJVPROJ
*  INTO TABLE @DATA(IT_CJVPROJ2).
*--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_CJVPROJ INDEX 1 INTO DATA(WA_CJVPROJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CJVPROJ>-MANDT = 1.
<CJVPROJ>-WBSELEMENTINTERNALID = 1.
<CJVPROJ>-WBSELEMENTEXTERNALID = 1.
<CJVPROJ>-WBSDESCRIPTION = 1.
<CJVPROJ>-CONTROLLINGAREA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CJVPROJ-COMPANYCODE, sy-vline,
  WA_CJVPROJ-JOINTVENTURE, sy-vline,
  WA_CJVPROJ-JOINTVENTURERECOVERYCODE, sy-vline,
  WA_CJVPROJ-JOINTVENTUREEQUITYTYPE, sy-vline,
  WA_CJVPROJ-JNTVNTRPROJECTTYPE, sy-vline,
  WA_CJVPROJ-JNTINTRSTBILLGCLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CJVPROJ 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_CJVPROJ 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_CJVPROJ INTO WA_CJVPROJ.


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

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

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

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

*Conversion exit GJAHR, internal->external for field JNTVNTRPROJSUSPENSEYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CJVPROJ-JNTVNTRPROJSUSPENSEYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CJVPROJ-JNTVNTRPROJSUSPENSEYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field JNTVNTRPROJNOTSUSPENSEYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CJVPROJ-JNTVNTRPROJNOTSUSPENSEYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CJVPROJ-JNTVNTRPROJNOTSUSPENSEYEAR.
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_CJVPROJ_STR, 
MANDT TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
WBSELEMENTEXTERNALID TYPE STRING,
WBSDESCRIPTION TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COMPANYCODE TYPE STRING,
JOINTVENTURE TYPE STRING,
JOINTVENTURERECOVERYCODE TYPE STRING,
JOINTVENTUREEQUITYTYPE TYPE STRING,
JNTVNTRPROJECTTYPE TYPE STRING,
JNTINTRSTBILLGCLASS TYPE STRING,
JNTINTRSTBILLGSUBCLASS TYPE STRING,
JNTVNTRPROJSUSPENSESTSCRITLTY TYPE STRING,
JNTVNTRPROJISSUSPENDED TYPE STRING,
JNTVNTRPROJSUSPENSEPERD TYPE STRING,
JNTVNTRPROJSUSPENSEYEAR TYPE STRING,
JNTVNTRPROJISNOTSUSPENDED TYPE STRING,
JNTVNTRPROJNOTSUSPENSEPERD TYPE STRING,
JNTVNTRPROJNOTSUSPENSEYEAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CJVPROJ_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_CJVPROJ_STR-MANDT sy-vline 
WA_CJVPROJ_STR-WBSELEMENTINTERNALID sy-vline 
WA_CJVPROJ_STR-WBSELEMENTEXTERNALID sy-vline 
WA_CJVPROJ_STR-WBSDESCRIPTION sy-vline 
WA_CJVPROJ_STR-CONTROLLINGAREA sy-vline 
WA_CJVPROJ_STR-COMPANYCODE sy-vline 
WA_CJVPROJ_STR-JOINTVENTURE sy-vline 
WA_CJVPROJ_STR-JOINTVENTURERECOVERYCODE sy-vline 
WA_CJVPROJ_STR-JOINTVENTUREEQUITYTYPE sy-vline 
WA_CJVPROJ_STR-JNTVNTRPROJECTTYPE sy-vline 
WA_CJVPROJ_STR-JNTINTRSTBILLGCLASS sy-vline 
WA_CJVPROJ_STR-JNTINTRSTBILLGSUBCLASS sy-vline 
WA_CJVPROJ_STR-JNTVNTRPROJSUSPENSESTSCRITLTY sy-vline 
WA_CJVPROJ_STR-JNTVNTRPROJISSUSPENDED sy-vline 
WA_CJVPROJ_STR-JNTVNTRPROJSUSPENSEPERD sy-vline 
WA_CJVPROJ_STR-JNTVNTRPROJSUSPENSEYEAR sy-vline 
WA_CJVPROJ_STR-JNTVNTRPROJISNOTSUSPENDED sy-vline 
WA_CJVPROJ_STR-JNTVNTRPROJNOTSUSPENSEPERD sy-vline 
WA_CJVPROJ_STR-JNTVNTRPROJNOTSUSPENSEYEAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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