ABAP Select data from SAP table JBTOBJ1_EXT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP JBTOBJ1_EXT 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 JBTOBJ1_EXT. 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 JBTOBJ1_EXT 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_JBTOBJ1_EXT TYPE STANDARD TABLE OF JBTOBJ1_EXT,
      WA_JBTOBJ1_EXT TYPE JBTOBJ1_EXT,
      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: <JBTOBJ1_EXT> TYPE JBTOBJ1_EXT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_JBTOBJ1_EXT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM JBTOBJ1_EXT
  INTO TABLE IT_JBTOBJ1_EXT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBTOBJ1_EXT
*  INTO TABLE @DATA(IT_JBTOBJ1_EXT2).
*--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_JBTOBJ1_EXT INDEX 1 INTO DATA(WA_JBTOBJ1_EXT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_JBTOBJ1_EXT ASSIGNING <JBTOBJ1_EXT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBTOBJ1_EXT>-MANDT = 1.
<JBTOBJ1_EXT>-OBJNR = 1.
<JBTOBJ1_EXT>-RADKEY = 1.
<JBTOBJ1_EXT>-RBPROD = 1.
<JBTOBJ1_EXT>-RBPVAR = 1.

ENDLOOP.

LOOP AT IT_JBTOBJ1_EXT INTO WA_JBTOBJ1_EXT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBTOBJ1_EXT-DKGUEL, sy-vline,
  WA_JBTOBJ1_EXT-PAOBJNR, sy-vline,
  WA_JBTOBJ1_EXT-DLKALK, sy-vline,
  WA_JBTOBJ1_EXT-SPERIO, sy-vline,
  WA_JBTOBJ1_EXT-SKJAHR, sy-vline,
  WA_JBTOBJ1_EXT-UPUSERT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBTOBJ1_EXT 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_JBTOBJ1_EXT 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_JBTOBJ1_EXT INTO WA_JBTOBJ1_EXT.


*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_JBTOBJ1_EXT_STR, 
MANDT TYPE STRING,
OBJNR TYPE STRING,
RADKEY TYPE STRING,
RBPROD TYPE STRING,
RBPVAR TYPE STRING,
DKGUEL TYPE STRING,
PAOBJNR TYPE STRING,
DLKALK TYPE STRING,
SPERIO TYPE STRING,
SKJAHR TYPE STRING,
UPUSERT TYPE STRING,
DUPDATT TYPE STRING,
TUPTIMT TYPE STRING,
CNDLIST TYPE STRING,
RKALRG TYPE STRING,
RKALRG_DRVD TYPE STRING,
XADKEY TYPE STRING,
BFT_NUMB TYPE STRING,
AKTDB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBTOBJ1_EXT_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_JBTOBJ1_EXT_STR-MANDT sy-vline 
WA_JBTOBJ1_EXT_STR-OBJNR sy-vline 
WA_JBTOBJ1_EXT_STR-RADKEY sy-vline 
WA_JBTOBJ1_EXT_STR-RBPROD sy-vline 
WA_JBTOBJ1_EXT_STR-RBPVAR sy-vline 
WA_JBTOBJ1_EXT_STR-DKGUEL sy-vline 
WA_JBTOBJ1_EXT_STR-PAOBJNR sy-vline 
WA_JBTOBJ1_EXT_STR-DLKALK sy-vline 
WA_JBTOBJ1_EXT_STR-SPERIO sy-vline 
WA_JBTOBJ1_EXT_STR-SKJAHR sy-vline 
WA_JBTOBJ1_EXT_STR-UPUSERT sy-vline 
WA_JBTOBJ1_EXT_STR-DUPDATT sy-vline 
WA_JBTOBJ1_EXT_STR-TUPTIMT sy-vline 
WA_JBTOBJ1_EXT_STR-CNDLIST sy-vline 
WA_JBTOBJ1_EXT_STR-RKALRG sy-vline 
WA_JBTOBJ1_EXT_STR-RKALRG_DRVD sy-vline 
WA_JBTOBJ1_EXT_STR-XADKEY sy-vline 
WA_JBTOBJ1_EXT_STR-BFT_NUMB sy-vline 
WA_JBTOBJ1_EXT_STR-AKTDB sy-vline      INTO ld_text SEPARATED BY SPACE.

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