ABAP Select data from SAP table TCP00 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TCP00 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 TCP00. 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 TCP00 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_TCP00 TYPE STANDARD TABLE OF TCP00,
      WA_TCP00 TYPE TCP00,
      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: <TCP00> TYPE TCP00.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TCP00.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TCP00
  INTO TABLE IT_TCP00.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TCP00
*  INTO TABLE @DATA(IT_TCP002).
*--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_TCP00 INDEX 1 INTO DATA(WA_TCP002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TCP00 ASSIGNING <TCP00>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TCP00>-CPCODEPAGE = 1.
<TCP00>-CPCOMPANY = 1.
<TCP00>-CPENCODING = 1.
<TCP00>-CPBYTEIND = 1.
<TCP00>-CPEXTMETH = 1.

ENDLOOP.

LOOP AT IT_TCP00 INTO WA_TCP00.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TCP00-CPID, sy-vline,
  WA_TCP00-CPCOMMENT, sy-vline,
  WA_TCP00-CPVERSION, sy-vline,
  WA_TCP00-CPSUPEROF, sy-vline,
  WA_TCP00-CPBASEDON, sy-vline,
  WA_TCP00-CPNLSMAJOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TCP00 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_TCP00 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_TCP00 INTO WA_TCP00.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TCP00_STR, 
CPCODEPAGE TYPE STRING,
CPCOMPANY TYPE STRING,
CPENCODING TYPE STRING,
CPBYTEIND TYPE STRING,
CPEXTMETH TYPE STRING,
CPID TYPE STRING,
CPCOMMENT TYPE STRING,
CPVERSION TYPE STRING,
CPSUPEROF TYPE STRING,
CPBASEDON TYPE STRING,
CPNLSMAJOR TYPE STRING,
CPNLSMINOR TYPE STRING,
CPSOURCE TYPE STRING,
CPINCLUDE1 TYPE STRING,
CPINCLUDE2 TYPE STRING,
CPINCLUDE3 TYPE STRING,
CPINCLUDE4 TYPE STRING,
CPISSYSTEM TYPE STRING,
CPISPRINT TYPE STRING,
CPISGUI TYPE STRING,
CPISTOOL TYPE STRING,
CPISINCL TYPE STRING,
CPSTACKING TYPE STRING,
SEGID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TCP00_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_TCP00_STR-CPCODEPAGE sy-vline 
WA_TCP00_STR-CPCOMPANY sy-vline 
WA_TCP00_STR-CPENCODING sy-vline 
WA_TCP00_STR-CPBYTEIND sy-vline 
WA_TCP00_STR-CPEXTMETH sy-vline 
WA_TCP00_STR-CPID sy-vline 
WA_TCP00_STR-CPCOMMENT sy-vline 
WA_TCP00_STR-CPVERSION sy-vline 
WA_TCP00_STR-CPSUPEROF sy-vline 
WA_TCP00_STR-CPBASEDON sy-vline 
WA_TCP00_STR-CPNLSMAJOR sy-vline 
WA_TCP00_STR-CPNLSMINOR sy-vline 
WA_TCP00_STR-CPSOURCE sy-vline 
WA_TCP00_STR-CPINCLUDE1 sy-vline 
WA_TCP00_STR-CPINCLUDE2 sy-vline 
WA_TCP00_STR-CPINCLUDE3 sy-vline 
WA_TCP00_STR-CPINCLUDE4 sy-vline 
WA_TCP00_STR-CPISSYSTEM sy-vline 
WA_TCP00_STR-CPISPRINT sy-vline 
WA_TCP00_STR-CPISGUI sy-vline 
WA_TCP00_STR-CPISTOOL sy-vline 
WA_TCP00_STR-CPISINCL sy-vline 
WA_TCP00_STR-CPSTACKING sy-vline 
WA_TCP00_STR-SEGID sy-vline      INTO ld_text SEPARATED BY SPACE.

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