ABAP Select data from SAP table /CUM/V_CUNIT into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP /CUM/V_CUNIT 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 /CUM/V_CUNIT. 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 /CUM/V_CUNIT 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_/CUM/V_CUNIT TYPE STANDARD TABLE OF /CUM/V_CUNIT,
      WA_/CUM/V_CUNIT TYPE /CUM/V_CUNIT,
      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: </CUM/V_CUNIT> TYPE /CUM/V_CUNIT.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /CUM/V_CUNIT
  INTO TABLE IT_/CUM/V_CUNIT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /CUM/V_CUNIT
*  INTO TABLE @DATA(IT_/CUM/V_CUNIT2).
*--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_/CUM/V_CUNIT INDEX 1 INTO DATA(WA_/CUM/V_CUNIT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/CUM/V_CUNIT ASSIGNING </CUM/V_CUNIT>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
</CUM/V_CUNIT>-MANDT = 1.
</CUM/V_CUNIT>-CU_ID = 1.
</CUM/V_CUNIT>-SPRAS = 1.
</CUM/V_CUNIT>-CUTYP = 1.
</CUM/V_CUNIT>-STDNR = 1.
ENDLOOP.

LOOP AT IT_/CUM/V_CUNIT INTO WA_/CUM/V_CUNIT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/CUM/V_CUNIT-MEINS, sy-vline,
WA_/CUM/V_CUNIT-OBJNR, sy-vline,
WA_/CUM/V_CUNIT-BEGRU, sy-vline,
WA_/CUM/V_CUNIT-DATAB, sy-vline,
WA_/CUM/V_CUNIT-DATBI, sy-vline,
WA_/CUM/V_CUNIT-CU_BOM, sy-vline.
ENDLOOP. *Add any further fields from structure WA_/CUM/V_CUNIT 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_/CUM/V_CUNIT 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_/CUM/V_CUNIT INTO WA_/CUM/V_CUNIT. *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 CU_ID CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT' EXPORTING input = WA_/CUM/V_CUNIT-CU_ID IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_/CUM/V_CUNIT-CU_ID.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MEINS CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_/CUM/V_CUNIT-MEINS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_/CUM/V_CUNIT-MEINS.
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_/CUM/V_CUNIT_STR,
MANDT TYPE STRING,
CU_ID TYPE STRING,
SPRAS TYPE STRING,
CUTYP TYPE STRING,
STDNR TYPE STRING,
MEINS TYPE STRING,
OBJNR TYPE STRING,
BEGRU TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
CU_BOM TYPE STRING,
EQFNR TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
CUTXT TYPE STRING,
CUTXT_ALT TYPE STRING,
BZGSOBJTYP TYPE STRING,
BZGSOBJ TYPE STRING,END OF T_EKKO_STR. DATA: WA_/CUM/V_CUNIT_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_/CUM/V_CUNIT_STR-MANDT sy-vline
WA_/CUM/V_CUNIT_STR-CU_ID sy-vline
WA_/CUM/V_CUNIT_STR-SPRAS sy-vline
WA_/CUM/V_CUNIT_STR-CUTYP sy-vline
WA_/CUM/V_CUNIT_STR-STDNR sy-vline
WA_/CUM/V_CUNIT_STR-MEINS sy-vline
WA_/CUM/V_CUNIT_STR-OBJNR sy-vline
WA_/CUM/V_CUNIT_STR-BEGRU sy-vline
WA_/CUM/V_CUNIT_STR-DATAB sy-vline
WA_/CUM/V_CUNIT_STR-DATBI sy-vline
WA_/CUM/V_CUNIT_STR-CU_BOM sy-vline
WA_/CUM/V_CUNIT_STR-EQFNR sy-vline
WA_/CUM/V_CUNIT_STR-ERDAT sy-vline
WA_/CUM/V_CUNIT_STR-ERNAM sy-vline
WA_/CUM/V_CUNIT_STR-AEDAT sy-vline
WA_/CUM/V_CUNIT_STR-AENAM sy-vline
WA_/CUM/V_CUNIT_STR-CUTXT sy-vline
WA_/CUM/V_CUNIT_STR-CUTXT_ALT sy-vline
WA_/CUM/V_CUNIT_STR-BZGSOBJTYP sy-vline
WA_/CUM/V_CUNIT_STR-BZGSOBJ sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.