ABAP Select data from SAP table IDOWNLOADBR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDOWNLOADBR
*  INTO TABLE @DATA(IT_IDOWNLOADBR2).
*--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_IDOWNLOADBR INDEX 1 INTO DATA(WA_IDOWNLOADBR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDOWNLOADBR>-MANDT = 1.
<IDOWNLOADBR>-ISU_BR_DOWNLOADOBJECT = 1.
<IDOWNLOADBR>-METERREADINGUNIT = 1.
<IDOWNLOADBR>-SCHEDULEDMETERREADINGDATE = 1.
<IDOWNLOADBR>-METERREADINGDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDOWNLOADBR-UTILITIESCONTRACT, sy-vline,
  WA_IDOWNLOADBR-MATERIAL, sy-vline,
  WA_IDOWNLOADBR-OBJECTSTATUS, sy-vline,
  WA_IDOWNLOADBR-DOWNLOADDATE, sy-vline,
  WA_IDOWNLOADBR-ISU_BR_DOWNLOADEXECUTIONDATE, sy-vline,
  WA_IDOWNLOADBR-SUBMITTEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDOWNLOADBR 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_IDOWNLOADBR 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_IDOWNLOADBR INTO WA_IDOWNLOADBR.


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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IDOWNLOADBR-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDOWNLOADBR-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field EQUIPMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDOWNLOADBR-EQUIPMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDOWNLOADBR-EQUIPMENT.
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_IDOWNLOADBR_STR, 
MANDT TYPE STRING,
ISU_BR_DOWNLOADOBJECT TYPE STRING,
METERREADINGUNIT TYPE STRING,
SCHEDULEDMETERREADINGDATE TYPE STRING,
METERREADINGDOCUMENT TYPE STRING,
UTILITIESCONTRACT TYPE STRING,
MATERIAL TYPE STRING,
OBJECTSTATUS TYPE STRING,
DOWNLOADDATE TYPE STRING,
ISU_BR_DOWNLOADEXECUTIONDATE TYPE STRING,
SUBMITTEDBYUSER TYPE STRING,
DOWNLOADTIME TYPE STRING,
ISU_BR_TARGETSYSTEMNUMBER TYPE STRING,
METERREADINGREASON TYPE STRING,
UTILITIESINSTALLATION TYPE STRING,
INDUSTRYSYSTEMTYPE TYPE STRING,
ISU_BR_METERREADINGCENTERLBL TYPE STRING,
METERREADINGDATE TYPE STRING,
EQUIPMENT TYPE STRING,
UTILITIESREGISTER TYPE STRING,
METERREADINGTYPE TYPE STRING,
ISU_BR_UPLOADDATE TYPE STRING,
ISU_BR_UPLOADTIME TYPE STRING,
ISU_BR_UPLOADEDBYUSER TYPE STRING,
ISU_BR_REVERSEDATE TYPE STRING,
ISU_BR_REVERSETIME TYPE STRING,
ISU_BR_REVERSEDBYUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDOWNLOADBR_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_IDOWNLOADBR_STR-MANDT sy-vline 
WA_IDOWNLOADBR_STR-ISU_BR_DOWNLOADOBJECT sy-vline 
WA_IDOWNLOADBR_STR-METERREADINGUNIT sy-vline 
WA_IDOWNLOADBR_STR-SCHEDULEDMETERREADINGDATE sy-vline 
WA_IDOWNLOADBR_STR-METERREADINGDOCUMENT sy-vline 
WA_IDOWNLOADBR_STR-UTILITIESCONTRACT sy-vline 
WA_IDOWNLOADBR_STR-MATERIAL sy-vline 
WA_IDOWNLOADBR_STR-OBJECTSTATUS sy-vline 
WA_IDOWNLOADBR_STR-DOWNLOADDATE sy-vline 
WA_IDOWNLOADBR_STR-ISU_BR_DOWNLOADEXECUTIONDATE sy-vline 
WA_IDOWNLOADBR_STR-SUBMITTEDBYUSER sy-vline 
WA_IDOWNLOADBR_STR-DOWNLOADTIME sy-vline 
WA_IDOWNLOADBR_STR-ISU_BR_TARGETSYSTEMNUMBER sy-vline 
WA_IDOWNLOADBR_STR-METERREADINGREASON sy-vline 
WA_IDOWNLOADBR_STR-UTILITIESINSTALLATION sy-vline 
WA_IDOWNLOADBR_STR-INDUSTRYSYSTEMTYPE sy-vline 
WA_IDOWNLOADBR_STR-ISU_BR_METERREADINGCENTERLBL sy-vline 
WA_IDOWNLOADBR_STR-METERREADINGDATE sy-vline 
WA_IDOWNLOADBR_STR-EQUIPMENT sy-vline 
WA_IDOWNLOADBR_STR-UTILITIESREGISTER sy-vline 
WA_IDOWNLOADBR_STR-METERREADINGTYPE sy-vline 
WA_IDOWNLOADBR_STR-ISU_BR_UPLOADDATE sy-vline 
WA_IDOWNLOADBR_STR-ISU_BR_UPLOADTIME sy-vline 
WA_IDOWNLOADBR_STR-ISU_BR_UPLOADEDBYUSER sy-vline 
WA_IDOWNLOADBR_STR-ISU_BR_REVERSEDATE sy-vline 
WA_IDOWNLOADBR_STR-ISU_BR_REVERSETIME sy-vline 
WA_IDOWNLOADBR_STR-ISU_BR_REVERSEDBYUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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