ABAP Select data from SAP table JBDBSTD into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP JBDBSTD 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 JBDBSTD. 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 JBDBSTD 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_JBDBSTD TYPE STANDARD TABLE OF JBDBSTD,
      WA_JBDBSTD TYPE JBDBSTD,
      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: <JBDBSTD> TYPE JBDBSTD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBDBSTD
*  INTO TABLE @DATA(IT_JBDBSTD2).
*--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_JBDBSTD INDEX 1 INTO DATA(WA_JBDBSTD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBDBSTD>-MANDT = 1.
<JBDBSTD>-RBESTO = 1.
<JBDBSTD>-BUKRS = 1.
<JBDBSTD>-RPORTB = 1.
<JBDBSTD>-RANLW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBDBSTD-RHANPL, sy-vline,
  WA_JBDBSTD-OPTNR, sy-vline,
  WA_JBDBSTD-RLDEPO, sy-vline,
  WA_JBDBSTD-RCOMMD, sy-vline,
  WA_JBDBSTD-WBWAER, sy-vline,
  WA_JBDBSTD-RUKURS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBDBSTD 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_JBDBSTD 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_JBDBSTD INTO WA_JBDBSTD.


*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 RANLW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JBDBSTD-RANLW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBDBSTD-RANLW.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field SMPREI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_JBDBSTD-SMPREI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBDBSTD-SMPREI.
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_JBDBSTD_STR, 
MANDT TYPE STRING,
RBESTO TYPE STRING,
BUKRS TYPE STRING,
RPORTB TYPE STRING,
RANLW TYPE STRING,
RHANPL TYPE STRING,
OPTNR TYPE STRING,
RLDEPO TYPE STRING,
RCOMMD TYPE STRING,
WBWAER TYPE STRING,
RUKURS TYPE STRING,
SSHLNG TYPE STRING,
SMPREI TYPE STRING,
DERFAS TYPE STRING,
TERFAS TYPE STRING,
RFRIST TYPE STRING,
DAUFB TYPE STRING,
SANLF TYPE STRING,
OBJNR TYPE STRING,
GSART TYPE STRING,
SGLDKR TYPE STRING,
DLBWRT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBDBSTD_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_JBDBSTD_STR-MANDT sy-vline 
WA_JBDBSTD_STR-RBESTO sy-vline 
WA_JBDBSTD_STR-BUKRS sy-vline 
WA_JBDBSTD_STR-RPORTB sy-vline 
WA_JBDBSTD_STR-RANLW sy-vline 
WA_JBDBSTD_STR-RHANPL sy-vline 
WA_JBDBSTD_STR-OPTNR sy-vline 
WA_JBDBSTD_STR-RLDEPO sy-vline 
WA_JBDBSTD_STR-RCOMMD sy-vline 
WA_JBDBSTD_STR-WBWAER sy-vline 
WA_JBDBSTD_STR-RUKURS sy-vline 
WA_JBDBSTD_STR-SSHLNG sy-vline 
WA_JBDBSTD_STR-SMPREI sy-vline 
WA_JBDBSTD_STR-DERFAS sy-vline 
WA_JBDBSTD_STR-TERFAS sy-vline 
WA_JBDBSTD_STR-RFRIST sy-vline 
WA_JBDBSTD_STR-DAUFB sy-vline 
WA_JBDBSTD_STR-SANLF sy-vline 
WA_JBDBSTD_STR-OBJNR sy-vline 
WA_JBDBSTD_STR-GSART sy-vline 
WA_JBDBSTD_STR-SGLDKR sy-vline 
WA_JBDBSTD_STR-DLBWRT sy-vline      INTO ld_text SEPARATED BY SPACE.

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