ABAP Select data from SAP table ISU_BILLDOC_CONSHIST_BULK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU_BILLDOC_CONSHIST_BULK
*  INTO TABLE @DATA(IT_ISU_BILLDOC_CONSHIST_BULK2).
*--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_ISU_BILLDOC_CONSHIST_BULK INDEX 1 INTO DATA(WA_ISU_BILLDOC_CONSHIST_BULK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU_BILLDOC_CONSHIST_BULK>-SIMREQGUID = 1.
<ISU_BILLDOC_CONSHIST_BULK>-DOCUMENTID = 1.
<ISU_BILLDOC_CONSHIST_BULK>-CONSECNO = 1.
<ISU_BILLDOC_CONSHIST_BULK>-DIVISION = 1.
<ISU_BILLDOC_CONSHIST_BULK>-OPERAND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU_BILLDOC_CONSHIST_BULK-RESULTTYPE, sy-vline,
  WA_ISU_BILLDOC_CONSHIST_BULK-BILLINGQUANTITY, sy-vline,
  WA_ISU_BILLDOC_CONSHIST_BULK-UNIT, sy-vline,
  WA_ISU_BILLDOC_CONSHIST_BULK-NETAMOUNT, sy-vline,
  WA_ISU_BILLDOC_CONSHIST_BULK-CURRENCY, sy-vline,
  WA_ISU_BILLDOC_CONSHIST_BULK-PERIODSTART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU_BILLDOC_CONSHIST_BULK 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_ISU_BILLDOC_CONSHIST_BULK 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_ISU_BILLDOC_CONSHIST_BULK INTO WA_ISU_BILLDOC_CONSHIST_BULK.


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

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISU_BILLDOC_CONSHIST_BULK-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_BILLDOC_CONSHIST_BULK-UNIT.
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_ISU_BILLDOC_CONSHIST_BULK_STR, 
SIMREQGUID TYPE STRING,
DOCUMENTID TYPE STRING,
CONSECNO TYPE STRING,
DIVISION TYPE STRING,
OPERAND TYPE STRING,
RESULTTYPE TYPE STRING,
BILLINGQUANTITY TYPE STRING,
UNIT TYPE STRING,
NETAMOUNT TYPE STRING,
CURRENCY TYPE STRING,
PERIODSTART TYPE STRING,
PERIODEND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU_BILLDOC_CONSHIST_BULK_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_ISU_BILLDOC_CONSHIST_BULK_STR-SIMREQGUID sy-vline 
WA_ISU_BILLDOC_CONSHIST_BULK_STR-DOCUMENTID sy-vline 
WA_ISU_BILLDOC_CONSHIST_BULK_STR-CONSECNO sy-vline 
WA_ISU_BILLDOC_CONSHIST_BULK_STR-DIVISION sy-vline 
WA_ISU_BILLDOC_CONSHIST_BULK_STR-OPERAND sy-vline 
WA_ISU_BILLDOC_CONSHIST_BULK_STR-RESULTTYPE sy-vline 
WA_ISU_BILLDOC_CONSHIST_BULK_STR-BILLINGQUANTITY sy-vline 
WA_ISU_BILLDOC_CONSHIST_BULK_STR-UNIT sy-vline 
WA_ISU_BILLDOC_CONSHIST_BULK_STR-NETAMOUNT sy-vline 
WA_ISU_BILLDOC_CONSHIST_BULK_STR-CURRENCY sy-vline 
WA_ISU_BILLDOC_CONSHIST_BULK_STR-PERIODSTART sy-vline 
WA_ISU_BILLDOC_CONSHIST_BULK_STR-PERIODEND sy-vline      INTO ld_text SEPARATED BY SPACE.

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