ABAP Select data from SAP table CONT_TWPCOPY 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 CONT_TWPCOPY 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 CONT_TWPCOPY. 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 CONT_TWPCOPY 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_CONT_TWPCOPY TYPE STANDARD TABLE OF CONT_TWPCOPY,
      WA_CONT_TWPCOPY TYPE CONT_TWPCOPY,
      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: <CONT_TWPCOPY> TYPE CONT_TWPCOPY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CONT_TWPCOPY
*  INTO TABLE @DATA(IT_CONT_TWPCOPY2).
*--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_CONT_TWPCOPY INDEX 1 INTO DATA(WA_CONT_TWPCOPY2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CONT_TWPCOPY ASSIGNING <CONT_TWPCOPY>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<CONT_TWPCOPY>-MESTYP = 1.
<CONT_TWPCOPY>-REFEMPF = 1.
<CONT_TWPCOPY>-RCVPOR = 1.
<CONT_TWPCOPY>-VKORG = 1.
<CONT_TWPCOPY>-VTWEG = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CONT_TWPCOPY-KUNNR, sy-vline,
WA_CONT_TWPCOPY-RCVPRN, sy-vline,
WA_CONT_TWPCOPY-TRIGFILE, sy-vline,
WA_CONT_TWPCOPY-AKTIV, sy-vline,
WA_CONT_TWPCOPY-GRUPPE, sy-vline,
WA_CONT_TWPCOPY-SELKZ_TWPCOPY, sy-vline.
ENDLOOP. *Add any further fields from structure WA_CONT_TWPCOPY 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_CONT_TWPCOPY 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_CONT_TWPCOPY INTO WA_CONT_TWPCOPY. *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 REFEMPF CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_CONT_TWPCOPY-REFEMPF IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_CONT_TWPCOPY-REFEMPF.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field RCVPRN CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_CONT_TWPCOPY-RCVPRN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_CONT_TWPCOPY-RCVPRN.
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_CONT_TWPCOPY_STR,
MESTYP TYPE STRING,
REFEMPF TYPE STRING,
RCVPOR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
KUNNR TYPE STRING,
RCVPRN TYPE STRING,
TRIGFILE TYPE STRING,
AKTIV TYPE STRING,
GRUPPE TYPE STRING,
SELKZ_TWPCOPY TYPE STRING,
AENTYP TYPE STRING,END OF T_EKKO_STR. DATA: WA_CONT_TWPCOPY_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_CONT_TWPCOPY_STR-MESTYP sy-vline
WA_CONT_TWPCOPY_STR-REFEMPF sy-vline
WA_CONT_TWPCOPY_STR-RCVPOR sy-vline
WA_CONT_TWPCOPY_STR-VKORG sy-vline
WA_CONT_TWPCOPY_STR-VTWEG sy-vline
WA_CONT_TWPCOPY_STR-KUNNR sy-vline
WA_CONT_TWPCOPY_STR-RCVPRN sy-vline
WA_CONT_TWPCOPY_STR-TRIGFILE sy-vline
WA_CONT_TWPCOPY_STR-AKTIV sy-vline
WA_CONT_TWPCOPY_STR-GRUPPE sy-vline
WA_CONT_TWPCOPY_STR-SELKZ_TWPCOPY sy-vline
WA_CONT_TWPCOPY_STR-AENTYP sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.