ABAP Select data from SAP table DCBOCHK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DCBOCHK
*  INTO TABLE @DATA(IT_DCBOCHK2).
*--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_DCBOCHK INDEX 1 INTO DATA(WA_DCBOCHK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DCBOCHK>-BOHD = 1.
<DCBOCHK>-HDEXISTS = 1.
<DCBOCHK>-CHECK_NAME = 1.
<DCBOCHK>-CHECK_NAME_GLOBAL = 1.
<DCBOCHK>-TABART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DCBOCHK-RBAM_NAMES, sy-vline,
  WA_DCBOCHK-BONDLST, sy-vline,
  WA_DCBOCHK-NODESMISSING, sy-vline,
  WA_DCBOCHK-ATTREXISTS, sy-vline,
  WA_DCBOCHK-DBTABNAMEEX, sy-vline,
  WA_DCBOCHK-DBTABNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DCBOCHK 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_DCBOCHK 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_DCBOCHK INTO WA_DCBOCHK.


*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_DCBOCHK_STR, 
BOHD TYPE STRING,
HDEXISTS TYPE STRING,
CHECK_NAME TYPE STRING,
CHECK_NAME_GLOBAL TYPE STRING,
TABART TYPE STRING,
RBAM_NAMES TYPE STRING,
BONDLST TYPE STRING,
NODESMISSING TYPE STRING,
ATTREXISTS TYPE STRING,
DBTABNAMEEX TYPE STRING,
DBTABNAME TYPE STRING,
DUPLICATENODES TYPE STRING,
DBVIEWNAME TYPE STRING,
DELNODEPOSS TYPE STRING,
BOND TYPE STRING,
NODE_IN_LIST TYPE STRING,
COMPTYPES_ACTIVE TYPE STRING,
DEPTH_OK TYPE STRING,
DUPLICATEATTR TYPE STRING,
FIELDNAMECORR TYPE STRING,
KEYCONNECTED TYPE STRING,
VALUECHK TYPE STRING,
TRANSIENTCONS TYPE STRING,
TYPECONSISTENCY TYPE STRING,
DBFLDNAMECORR TYPE STRING,
DUPLICATEDBFLD TYPE STRING,
BOASS TYPE STRING,
VALUECHK TYPE STRING,
DUPLICATEASS TYPE STRING,
ATTREXIST TYPE STRING,
CHECKATTREXT TYPE STRING,
ATTREXISTAPP TYPE STRING,
TYPECHECK TYPE STRING,
TYPECHECKEXT TYPE STRING,
ASSDELETE TYPE STRING,
DOASTARGET TYPE STRING,
GETTARGETDO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DCBOCHK_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_DCBOCHK_STR-BOHD sy-vline 
WA_DCBOCHK_STR-HDEXISTS sy-vline 
WA_DCBOCHK_STR-CHECK_NAME sy-vline 
WA_DCBOCHK_STR-CHECK_NAME_GLOBAL sy-vline 
WA_DCBOCHK_STR-TABART sy-vline 
WA_DCBOCHK_STR-RBAM_NAMES sy-vline 
WA_DCBOCHK_STR-BONDLST sy-vline 
WA_DCBOCHK_STR-NODESMISSING sy-vline 
WA_DCBOCHK_STR-ATTREXISTS sy-vline 
WA_DCBOCHK_STR-DBTABNAMEEX sy-vline 
WA_DCBOCHK_STR-DBTABNAME sy-vline 
WA_DCBOCHK_STR-DUPLICATENODES sy-vline 
WA_DCBOCHK_STR-DBVIEWNAME sy-vline 
WA_DCBOCHK_STR-DELNODEPOSS sy-vline 
WA_DCBOCHK_STR-BOND sy-vline 
WA_DCBOCHK_STR-NODE_IN_LIST sy-vline 
WA_DCBOCHK_STR-COMPTYPES_ACTIVE sy-vline 
WA_DCBOCHK_STR-DEPTH_OK sy-vline 
WA_DCBOCHK_STR-DUPLICATEATTR sy-vline 
WA_DCBOCHK_STR-FIELDNAMECORR sy-vline 
WA_DCBOCHK_STR-KEYCONNECTED sy-vline 
WA_DCBOCHK_STR-VALUECHK sy-vline 
WA_DCBOCHK_STR-TRANSIENTCONS sy-vline 
WA_DCBOCHK_STR-TYPECONSISTENCY sy-vline 
WA_DCBOCHK_STR-DBFLDNAMECORR sy-vline 
WA_DCBOCHK_STR-DUPLICATEDBFLD sy-vline 
WA_DCBOCHK_STR-BOASS sy-vline 
WA_DCBOCHK_STR-VALUECHK sy-vline 
WA_DCBOCHK_STR-DUPLICATEASS sy-vline 
WA_DCBOCHK_STR-ATTREXIST sy-vline 
WA_DCBOCHK_STR-CHECKATTREXT sy-vline 
WA_DCBOCHK_STR-ATTREXISTAPP sy-vline 
WA_DCBOCHK_STR-TYPECHECK sy-vline 
WA_DCBOCHK_STR-TYPECHECKEXT sy-vline 
WA_DCBOCHK_STR-ASSDELETE sy-vline 
WA_DCBOCHK_STR-DOASTARGET sy-vline 
WA_DCBOCHK_STR-GETTARGETDO sy-vline      INTO ld_text SEPARATED BY SPACE.

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