ABAP Select data from SAP table CPRDUOMTXT into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CPRDUOMTXT 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 CPRDUOMTXT. 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 CPRDUOMTXT 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_CPRDUOMTXT TYPE STANDARD TABLE OF CPRDUOMTXT,
      WA_CPRDUOMTXT TYPE CPRDUOMTXT,
      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: <CPRDUOMTXT> TYPE CPRDUOMTXT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPRDUOMTXT
*  INTO TABLE @DATA(IT_CPRDUOMTXT2).
*--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_CPRDUOMTXT INDEX 1 INTO DATA(WA_CPRDUOMTXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPRDUOMTXT>-MANDT = 1.
<CPRDUOMTXT>-PRODUCT = 1.
<CPRDUOMTXT>-LANGUAGE = 1.
<CPRDUOMTXT>-PRODUCTUNITSHORTTEXTCODE = 1.
<CPRDUOMTXT>-PRODUCTUNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPRDUOMTXT-PRODUCTUNITTEXTSEQNUM, sy-vline,
  WA_CPRDUOMTXT-PRODUCTFOREDIT, sy-vline,
  WA_CPRDUOMTXT-LANGUAGEFOREDIT, sy-vline,
  WA_CPRDUOMTXT-PRODUCTUNITTEXTSEQNUMFOREDIT, sy-vline,
  WA_CPRDUOMTXT-PRODUCTUNITFOREDIT, sy-vline,
  WA_CPRDUOMTXT-PRODUCTDESCRIPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPRDUOMTXT 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_CPRDUOMTXT 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_CPRDUOMTXT INTO WA_CPRDUOMTXT.


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

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CPRDUOMTXT-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPRDUOMTXT-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ISOLA, internal->external for field LANGUAGEFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CPRDUOMTXT-LANGUAGEFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPRDUOMTXT-LANGUAGEFOREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PRODUCTUNITFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPRDUOMTXT-PRODUCTUNITFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPRDUOMTXT-PRODUCTUNITFOREDIT.
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_CPRDUOMTXT_STR, 
MANDT TYPE STRING,
PRODUCT TYPE STRING,
LANGUAGE TYPE STRING,
PRODUCTUNITSHORTTEXTCODE TYPE STRING,
PRODUCTUNIT TYPE STRING,
PRODUCTUNITTEXTSEQNUM TYPE STRING,
PRODUCTFOREDIT TYPE STRING,
LANGUAGEFOREDIT TYPE STRING,
PRODUCTUNITTEXTSEQNUMFOREDIT TYPE STRING,
PRODUCTUNITFOREDIT TYPE STRING,
PRODUCTDESCRIPTION TYPE STRING,
LANGUAGEISOCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPRDUOMTXT_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_CPRDUOMTXT_STR-MANDT sy-vline 
WA_CPRDUOMTXT_STR-PRODUCT sy-vline 
WA_CPRDUOMTXT_STR-LANGUAGE sy-vline 
WA_CPRDUOMTXT_STR-PRODUCTUNITSHORTTEXTCODE sy-vline 
WA_CPRDUOMTXT_STR-PRODUCTUNIT sy-vline 
WA_CPRDUOMTXT_STR-PRODUCTUNITTEXTSEQNUM sy-vline 
WA_CPRDUOMTXT_STR-PRODUCTFOREDIT sy-vline 
WA_CPRDUOMTXT_STR-LANGUAGEFOREDIT sy-vline 
WA_CPRDUOMTXT_STR-PRODUCTUNITTEXTSEQNUMFOREDIT sy-vline 
WA_CPRDUOMTXT_STR-PRODUCTUNITFOREDIT sy-vline 
WA_CPRDUOMTXT_STR-PRODUCTDESCRIPTION sy-vline 
WA_CPRDUOMTXT_STR-LANGUAGEISOCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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