ABAP Select data from SAP table DB2CPYTSP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DB2CPYTSP 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 DB2CPYTSP. 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 DB2CPYTSP 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_DB2CPYTSP TYPE STANDARD TABLE OF DB2CPYTSP,
      WA_DB2CPYTSP TYPE DB2CPYTSP,
      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: <DB2CPYTSP> TYPE DB2CPYTSP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DB2CPYTSP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DB2CPYTSP
  INTO TABLE IT_DB2CPYTSP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DB2CPYTSP
*  INTO TABLE @DATA(IT_DB2CPYTSP2).
*--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_DB2CPYTSP INDEX 1 INTO DATA(WA_DB2CPYTSP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DB2CPYTSP ASSIGNING <DB2CPYTSP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DB2CPYTSP>-TSNAME = 1.
<DB2CPYTSP>-DBNAME = 1.
<DB2CPYTSP>-DSNUM = 1.
<DB2CPYTSP>-FULLCOPY = 1.
<DB2CPYTSP>-CHGLIMIT = 1.

ENDLOOP.

LOOP AT IT_DB2CPYTSP INTO WA_DB2CPYTSP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DB2CPYTSP-CHGLIMIT1, sy-vline,
  WA_DB2CPYTSP-CHGLIMIT2, sy-vline,
  WA_DB2CPYTSP-REPORTONLY, sy-vline,
  WA_DB2CPYTSP-SHRLEVEL, sy-vline,
  WA_DB2CPYTSP-COPYDSN1, sy-vline,
  WA_DB2CPYTSP-COPYDEVT1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DB2CPYTSP 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_DB2CPYTSP 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_DB2CPYTSP INTO WA_DB2CPYTSP.


*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_DB2CPYTSP_STR, 
TSNAME TYPE STRING,
DBNAME TYPE STRING,
DSNUM TYPE STRING,
FULLCOPY TYPE STRING,
CHGLIMIT TYPE STRING,
CHGLIMIT1 TYPE STRING,
CHGLIMIT2 TYPE STRING,
REPORTONLY TYPE STRING,
SHRLEVEL TYPE STRING,
COPYDSN1 TYPE STRING,
COPYDEVT1 TYPE STRING,
COPYSPACE1 TYPE STRING,
COPYDSN2 TYPE STRING,
COPYDEVT2 TYPE STRING,
COPYSPACE2 TYPE STRING,
RCPYDSN1 TYPE STRING,
RCPYDEVT1 TYPE STRING,
RCPYSPACE1 TYPE STRING,
RCPYDSN2 TYPE STRING,
RCPYDEVT2 TYPE STRING,
RCPYSPACE2 TYPE STRING,
RESTART TYPE STRING,
RETCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DB2CPYTSP_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_DB2CPYTSP_STR-TSNAME sy-vline 
WA_DB2CPYTSP_STR-DBNAME sy-vline 
WA_DB2CPYTSP_STR-DSNUM sy-vline 
WA_DB2CPYTSP_STR-FULLCOPY sy-vline 
WA_DB2CPYTSP_STR-CHGLIMIT sy-vline 
WA_DB2CPYTSP_STR-CHGLIMIT1 sy-vline 
WA_DB2CPYTSP_STR-CHGLIMIT2 sy-vline 
WA_DB2CPYTSP_STR-REPORTONLY sy-vline 
WA_DB2CPYTSP_STR-SHRLEVEL sy-vline 
WA_DB2CPYTSP_STR-COPYDSN1 sy-vline 
WA_DB2CPYTSP_STR-COPYDEVT1 sy-vline 
WA_DB2CPYTSP_STR-COPYSPACE1 sy-vline 
WA_DB2CPYTSP_STR-COPYDSN2 sy-vline 
WA_DB2CPYTSP_STR-COPYDEVT2 sy-vline 
WA_DB2CPYTSP_STR-COPYSPACE2 sy-vline 
WA_DB2CPYTSP_STR-RCPYDSN1 sy-vline 
WA_DB2CPYTSP_STR-RCPYDEVT1 sy-vline 
WA_DB2CPYTSP_STR-RCPYSPACE1 sy-vline 
WA_DB2CPYTSP_STR-RCPYDSN2 sy-vline 
WA_DB2CPYTSP_STR-RCPYDEVT2 sy-vline 
WA_DB2CPYTSP_STR-RCPYSPACE2 sy-vline 
WA_DB2CPYTSP_STR-RESTART sy-vline 
WA_DB2CPYTSP_STR-RETCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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