ABAP Select data from SAP table DOWNTIME_ALV into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DOWNTIME_ALV
*  INTO TABLE @DATA(IT_DOWNTIME_ALV2).
*--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_DOWNTIME_ALV INDEX 1 INTO DATA(WA_DOWNTIME_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DOWNTIME_ALV>-WERKS = 1.
<DOWNTIME_ALV>-ARBPL = 1.
<DOWNTIME_ALV>-DTDAT = 1.
<DOWNTIME_ALV>-SCHNR = 1.
<DOWNTIME_ALV>-DTSUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DOWNTIME_ALV-KEINH, sy-vline,
  WA_DOWNTIME_ALV-ANGEB, sy-vline,
  WA_DOWNTIME_ALV-EINZT, sy-vline,
  WA_DOWNTIME_ALV-IDLEH, sy-vline,
  WA_DOWNTIME_ALV-GRPRH, sy-vline,
  WA_DOWNTIME_ALV-NTPRH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DOWNTIME_ALV 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_DOWNTIME_ALV 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_DOWNTIME_ALV INTO WA_DOWNTIME_ALV.


*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 CUNIT, internal->external for field KEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DOWNTIME_ALV-KEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DOWNTIME_ALV-KEINH.
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_DOWNTIME_ALV_STR, 
WERKS TYPE STRING,
ARBPL TYPE STRING,
DTDAT TYPE STRING,
SCHNR TYPE STRING,
DTSUM TYPE STRING,
KEINH TYPE STRING,
ANGEB TYPE STRING,
EINZT TYPE STRING,
IDLEH TYPE STRING,
GRPRH TYPE STRING,
NTPRH TYPE STRING,
DOWNT TYPE STRING,
TARGH TYPE STRING,
ELOSS TYPE STRING,
EFFIC TYPE STRING,
PERFO TYPE STRING,
TEAM TYPE STRING,
KAPAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DOWNTIME_ALV_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_DOWNTIME_ALV_STR-WERKS sy-vline 
WA_DOWNTIME_ALV_STR-ARBPL sy-vline 
WA_DOWNTIME_ALV_STR-DTDAT sy-vline 
WA_DOWNTIME_ALV_STR-SCHNR sy-vline 
WA_DOWNTIME_ALV_STR-DTSUM sy-vline 
WA_DOWNTIME_ALV_STR-KEINH sy-vline 
WA_DOWNTIME_ALV_STR-ANGEB sy-vline 
WA_DOWNTIME_ALV_STR-EINZT sy-vline 
WA_DOWNTIME_ALV_STR-IDLEH sy-vline 
WA_DOWNTIME_ALV_STR-GRPRH sy-vline 
WA_DOWNTIME_ALV_STR-NTPRH sy-vline 
WA_DOWNTIME_ALV_STR-DOWNT sy-vline 
WA_DOWNTIME_ALV_STR-TARGH sy-vline 
WA_DOWNTIME_ALV_STR-ELOSS sy-vline 
WA_DOWNTIME_ALV_STR-EFFIC sy-vline 
WA_DOWNTIME_ALV_STR-PERFO sy-vline 
WA_DOWNTIME_ALV_STR-TEAM sy-vline 
WA_DOWNTIME_ALV_STR-KAPAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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