ABAP Select data from SAP table CMPAORDITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMPAORDITM
*  INTO TABLE @DATA(IT_CMPAORDITM2).
*--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_CMPAORDITM INDEX 1 INTO DATA(WA_CMPAORDITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMPAORDITM>-MANDT = 1.
<CMPAORDITM>-PRODALLOCASSIGNEDORDER = 1.
<CMPAORDITM>-ORDERITEM = 1.
<CMPAORDITM>-PRODALLOCASSIGNEDORDERTYPE = 1.
<CMPAORDITM>-PRODALLOCASSIGNEDORDERITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMPAORDITM-SALESSCHEDULINGAGREEMENT, sy-vline,
  WA_CMPAORDITM-SALESORDER, sy-vline,
  WA_CMPAORDITM-PURCHASEORDER, sy-vline,
  WA_CMPAORDITM-PLANT, sy-vline,
  WA_CMPAORDITM-MATERIAL, sy-vline,
  WA_CMPAORDITM-PRODALLOCATIONPERIODSTARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMPAORDITM 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_CMPAORDITM 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_CMPAORDITM INTO WA_CMPAORDITM.


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

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

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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CMPAORDITM-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMPAORDITM-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field PRODUCTALLOCATIONOBJECT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMPAORDITM-PRODUCTALLOCATIONOBJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMPAORDITM-PRODUCTALLOCATIONOBJECT.
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_CMPAORDITM_STR, 
MANDT TYPE STRING,
PRODALLOCASSIGNEDORDER TYPE STRING,
ORDERITEM TYPE STRING,
PRODALLOCASSIGNEDORDERTYPE TYPE STRING,
PRODALLOCASSIGNEDORDERITEM TYPE STRING,
SALESSCHEDULINGAGREEMENT TYPE STRING,
SALESORDER TYPE STRING,
PURCHASEORDER TYPE STRING,
PLANT TYPE STRING,
MATERIAL TYPE STRING,
PRODALLOCATIONPERIODSTARTDATE TYPE STRING,
PRODUCTALLOCATIONPERIODENDDATE TYPE STRING,
REQUESTEDDELIVERYDATE TYPE STRING,
REQUESTEDQUANTITYUNIT TYPE STRING,
REQUESTEDQUANTITY TYPE STRING,
CONFIRMEDQUANTITYUNIT TYPE STRING,
CONFIRMEDQUANTITY TYPE STRING,
DELIVEREDQUANTITYUNIT TYPE STRING,
DELIVEREDQTYINORDERQTYUNIT TYPE STRING,
PRODALLOCATPSTATUS TYPE STRING,
HIGHERLEVELITEM TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSERNAME TYPE STRING,
SDDOCUMENTCATEGORY TYPE STRING,
PRODALLOCSTATUSCRITICALITY TYPE STRING,
PRODUCTALLOCATIONOBJECT TYPE STRING,
PRODALLOCCHARCVALCOMBN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMPAORDITM_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_CMPAORDITM_STR-MANDT sy-vline 
WA_CMPAORDITM_STR-PRODALLOCASSIGNEDORDER sy-vline 
WA_CMPAORDITM_STR-ORDERITEM sy-vline 
WA_CMPAORDITM_STR-PRODALLOCASSIGNEDORDERTYPE sy-vline 
WA_CMPAORDITM_STR-PRODALLOCASSIGNEDORDERITEM sy-vline 
WA_CMPAORDITM_STR-SALESSCHEDULINGAGREEMENT sy-vline 
WA_CMPAORDITM_STR-SALESORDER sy-vline 
WA_CMPAORDITM_STR-PURCHASEORDER sy-vline 
WA_CMPAORDITM_STR-PLANT sy-vline 
WA_CMPAORDITM_STR-MATERIAL sy-vline 
WA_CMPAORDITM_STR-PRODALLOCATIONPERIODSTARTDATE sy-vline 
WA_CMPAORDITM_STR-PRODUCTALLOCATIONPERIODENDDATE sy-vline 
WA_CMPAORDITM_STR-REQUESTEDDELIVERYDATE sy-vline 
WA_CMPAORDITM_STR-REQUESTEDQUANTITYUNIT sy-vline 
WA_CMPAORDITM_STR-REQUESTEDQUANTITY sy-vline 
WA_CMPAORDITM_STR-CONFIRMEDQUANTITYUNIT sy-vline 
WA_CMPAORDITM_STR-CONFIRMEDQUANTITY sy-vline 
WA_CMPAORDITM_STR-DELIVEREDQUANTITYUNIT sy-vline 
WA_CMPAORDITM_STR-DELIVEREDQTYINORDERQTYUNIT sy-vline 
WA_CMPAORDITM_STR-PRODALLOCATPSTATUS sy-vline 
WA_CMPAORDITM_STR-HIGHERLEVELITEM sy-vline 
WA_CMPAORDITM_STR-CREATIONDATE sy-vline 
WA_CMPAORDITM_STR-CREATEDBYUSERNAME sy-vline 
WA_CMPAORDITM_STR-SDDOCUMENTCATEGORY sy-vline 
WA_CMPAORDITM_STR-PRODALLOCSTATUSCRITICALITY sy-vline 
WA_CMPAORDITM_STR-PRODUCTALLOCATIONOBJECT sy-vline 
WA_CMPAORDITM_STR-PRODALLOCCHARCVALCOMBN sy-vline      INTO ld_text SEPARATED BY SPACE.

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