ABAP Select data from SAP table /CWM/GOITEM_TV 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 /CWM/GOITEM_TV 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 /CWM/GOITEM_TV. 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 /CWM/GOITEM_TV 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_/CWM/GOITEM_TV TYPE STANDARD TABLE OF /CWM/GOITEM_TV,
      WA_/CWM/GOITEM_TV TYPE /CWM/GOITEM_TV,
      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: </CWM/GOITEM_TV> TYPE /CWM/GOITEM_TV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /CWM/GOITEM_TV
*  INTO TABLE @DATA(IT_/CWM/GOITEM_TV2).
*--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_/CWM/GOITEM_TV INDEX 1 INTO DATA(WA_/CWM/GOITEM_TV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/CWM/GOITEM_TV ASSIGNING </CWM/GOITEM_TV>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
</CWM/GOITEM_TV>-/CWM/MENGE = 1.
</CWM/GOITEM_TV>-/CWM/MENGE = 1.
</CWM/GOITEM_TV>-/CWM/MEINS = 1.
</CWM/GOITEM_TV>-/CWM/MEINS = 1.
</CWM/GOITEM_TV>-/CWM/ERFMG = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/CWM/GOITEM_TV-/CWM/ERFMG, sy-vline,
WA_/CWM/GOITEM_TV-/CWM/ERFME, sy-vline,
WA_/CWM/GOITEM_TV-/CWM/ERFME, sy-vline,
WA_/CWM/GOITEM_TV-/CWM/SC_ADJUST, sy-vline,
WA_/CWM/GOITEM_TV-/CWM/SC_ADJUST, sy-vline,
WA_/CWM/GOITEM_TV-/CWM/ERFMG_SIGN, sy-vline.
ENDLOOP. *Add any further fields from structure WA_/CWM/GOITEM_TV 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_/CWM/GOITEM_TV 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_/CWM/GOITEM_TV INTO WA_/CWM/GOITEM_TV. *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 /CWM/MEINS CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_/CWM/GOITEM_TV-/CWM/MEINS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_/CWM/GOITEM_TV-/CWM/MEINS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field /CWM/ERFME CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_/CWM/GOITEM_TV-/CWM/ERFME IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_/CWM/GOITEM_TV-/CWM/ERFME.
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_/CWM/GOITEM_TV_STR,
/CWM/MENGE TYPE STRING,
/CWM/MENGE TYPE STRING,
/CWM/MEINS TYPE STRING,
/CWM/MEINS TYPE STRING,
/CWM/ERFMG TYPE STRING,
/CWM/ERFMG TYPE STRING,
/CWM/ERFME TYPE STRING,
/CWM/ERFME TYPE STRING,
/CWM/SC_ADJUST TYPE STRING,
/CWM/SC_ADJUST TYPE STRING,
/CWM/ERFMG_SIGN TYPE STRING,
/CWM/ERFMG_SIGN TYPE STRING,
/CWM/MENGE_SIGN TYPE STRING,
/CWM/MENGE_SIGN TYPE STRING,END OF T_EKKO_STR. DATA: WA_/CWM/GOITEM_TV_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_/CWM/GOITEM_TV_STR-/CWM/MENGE sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/MENGE sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/MEINS sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/MEINS sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/ERFMG sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/ERFMG sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/ERFME sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/ERFME sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/SC_ADJUST sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/SC_ADJUST sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/ERFMG_SIGN sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/ERFMG_SIGN sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/MENGE_SIGN sy-vline
WA_/CWM/GOITEM_TV_STR-/CWM/MENGE_SIGN sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.