ABAP Select data from SAP table CPRAMJ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPRAMJ
*  INTO TABLE @DATA(IT_CPRAMJ2).
*--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_CPRAMJ INDEX 1 INTO DATA(WA_CPRAMJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPRAMJ>-MANDT = 1.
<CPRAMJ>-PURREQNALGNMTRUNUUID = 1.
<CPRAMJ>-LOGHANDLE = 1.
<CPRAMJ>-PURREQNALGNMTRUNTEXT = 1.
<CPRAMJ>-PURREQNALGNMTRUNSTATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPRAMJ-STARTDATE, sy-vline,
  WA_CPRAMJ-PURREQNALGNMTRUNEXECDTE, sy-vline,
  WA_CPRAMJ-USERNAME, sy-vline,
  WA_CPRAMJ-USERDESCRIPTION, sy-vline,
  WA_CPRAMJ-PURREQNALGNMTRUNMODE, sy-vline,
  WA_CPRAMJ-NUMBEROFPURCHASEREQITEMS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPRAMJ 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_CPRAMJ 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_CPRAMJ INTO WA_CPRAMJ.


*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 CUNIT, internal->external for field PURCHASEREQUISITIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPRAMJ-PURCHASEREQUISITIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPRAMJ-PURCHASEREQUISITIONUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ALIGNEDPURORDITEMBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPRAMJ-ALIGNEDPURORDITEMBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPRAMJ-ALIGNEDPURORDITEMBASEUNIT.
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_CPRAMJ_STR, 
MANDT TYPE STRING,
PURREQNALGNMTRUNUUID TYPE STRING,
LOGHANDLE TYPE STRING,
PURREQNALGNMTRUNTEXT TYPE STRING,
PURREQNALGNMTRUNSTATUS TYPE STRING,
STARTDATE TYPE STRING,
PURREQNALGNMTRUNEXECDTE TYPE STRING,
USERNAME TYPE STRING,
USERDESCRIPTION TYPE STRING,
PURREQNALGNMTRUNMODE TYPE STRING,
NUMBEROFPURCHASEREQITEMS TYPE STRING,
NMBROFPURREQNITEMSALGNMTPRPSL TYPE STRING,
NMBROFALIGNEDPURCHASEREQNITEMS TYPE STRING,
REQUESTEDQUANTITY TYPE STRING,
PURCHASEREQUISITIONUNIT TYPE STRING,
ALIGNEDPURORDITMQTYINBASEUOM TYPE STRING,
ALIGNEDPURORDITEMBASEUNIT TYPE STRING,
APPLICATIONLOGHANDLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPRAMJ_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_CPRAMJ_STR-MANDT sy-vline 
WA_CPRAMJ_STR-PURREQNALGNMTRUNUUID sy-vline 
WA_CPRAMJ_STR-LOGHANDLE sy-vline 
WA_CPRAMJ_STR-PURREQNALGNMTRUNTEXT sy-vline 
WA_CPRAMJ_STR-PURREQNALGNMTRUNSTATUS sy-vline 
WA_CPRAMJ_STR-STARTDATE sy-vline 
WA_CPRAMJ_STR-PURREQNALGNMTRUNEXECDTE sy-vline 
WA_CPRAMJ_STR-USERNAME sy-vline 
WA_CPRAMJ_STR-USERDESCRIPTION sy-vline 
WA_CPRAMJ_STR-PURREQNALGNMTRUNMODE sy-vline 
WA_CPRAMJ_STR-NUMBEROFPURCHASEREQITEMS sy-vline 
WA_CPRAMJ_STR-NMBROFPURREQNITEMSALGNMTPRPSL sy-vline 
WA_CPRAMJ_STR-NMBROFALIGNEDPURCHASEREQNITEMS sy-vline 
WA_CPRAMJ_STR-REQUESTEDQUANTITY sy-vline 
WA_CPRAMJ_STR-PURCHASEREQUISITIONUNIT sy-vline 
WA_CPRAMJ_STR-ALIGNEDPURORDITMQTYINBASEUOM sy-vline 
WA_CPRAMJ_STR-ALIGNEDPURORDITEMBASEUNIT sy-vline 
WA_CPRAMJ_STR-APPLICATIONLOGHANDLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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