ABAP Select data from SAP table MONITOR_STATUS_LIST_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MONITOR_STATUS_LIST_HEADER
*  INTO TABLE @DATA(IT_MONITOR_STATUS_LIST_HEADER2).
*--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_MONITOR_STATUS_LIST_HEADER INDEX 1 INTO DATA(WA_MONITOR_STATUS_LIST_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MONITOR_STATUS_LIST_HEADER>-VBELN = 1.
<MONITOR_STATUS_LIST_HEADER>-ERDAT = 1.
<MONITOR_STATUS_LIST_HEADER>-ERZET = 1.
<MONITOR_STATUS_LIST_HEADER>-ERNAM = 1.
<MONITOR_STATUS_LIST_HEADER>-AUDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MONITOR_STATUS_LIST_HEADER-VBTYP, sy-vline,
  WA_MONITOR_STATUS_LIST_HEADER-AUART, sy-vline,
  WA_MONITOR_STATUS_LIST_HEADER-AUGRU, sy-vline,
  WA_MONITOR_STATUS_LIST_HEADER-LIFSK, sy-vline,
  WA_MONITOR_STATUS_LIST_HEADER-FAKSK, sy-vline,
  WA_MONITOR_STATUS_LIST_HEADER-NETWR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MONITOR_STATUS_LIST_HEADER 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_MONITOR_STATUS_LIST_HEADER 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_MONITOR_STATUS_LIST_HEADER INTO WA_MONITOR_STATUS_LIST_HEADER.


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

*Conversion exit AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_MONITOR_STATUS_LIST_HEADER-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MONITOR_STATUS_LIST_HEADER-AUART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MONITOR_STATUS_LIST_HEADER-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MONITOR_STATUS_LIST_HEADER-KUNNR.
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_MONITOR_STATUS_LIST_HEADER_STR, 
VBELN TYPE STRING,
ERDAT TYPE STRING,
ERZET TYPE STRING,
ERNAM TYPE STRING,
AUDAT TYPE STRING,
VBTYP TYPE STRING,
AUART TYPE STRING,
AUGRU TYPE STRING,
LIFSK TYPE STRING,
FAKSK TYPE STRING,
NETWR TYPE STRING,
WAERK TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKGRP TYPE STRING,
VKBUR TYPE STRING,
BSTNK TYPE STRING,
KUNNR TYPE STRING,
LFSTK TYPE STRING,
LFGSK TYPE STRING,
FKSTK TYPE STRING,
FKSAK TYPE STRING,
GBSTK TYPE STRING,
UVALS TYPE STRING,
UVVLS TYPE STRING,
UVFAS TYPE STRING,
UVALL TYPE STRING,
UVVLK TYPE STRING,
UVFAK TYPE STRING,
UVPRS TYPE STRING,
CMGST TYPE STRING,
PDSTK TYPE STRING,
BESTK TYPE STRING,
LSSTK TYPE STRING,
NAME1 TYPE STRING,
STRAS TYPE STRING,
ORT01 TYPE STRING,
CVP_XBLCK TYPE STRING,
SALES_OFFICE_DESCR TYPE STRING,
SALES_ORG_DESCR TYPE STRING,
SALES_GROUP_DESCR TYPE STRING,
DISTR_CHANNEL_DESCR TYPE STRING,
DIVISION_DESCR TYPE STRING,
DELIV_BLOCK_DESCR TYPE STRING,
BILLING_BLOCK_DESCR TYPE STRING,
ORDER_REASON_DESCR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MONITOR_STATUS_LIST_HEADER_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_MONITOR_STATUS_LIST_HEADER_STR-VBELN sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-ERDAT sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-ERZET sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-ERNAM sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-AUDAT sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-VBTYP sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-AUART sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-AUGRU sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-LIFSK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-FAKSK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-NETWR sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-WAERK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-VKORG sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-VTWEG sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-SPART sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-VKGRP sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-VKBUR sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-BSTNK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-KUNNR sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-LFSTK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-LFGSK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-FKSTK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-FKSAK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-GBSTK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-UVALS sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-UVVLS sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-UVFAS sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-UVALL sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-UVVLK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-UVFAK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-UVPRS sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-CMGST sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-PDSTK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-BESTK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-LSSTK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-NAME1 sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-STRAS sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-ORT01 sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-CVP_XBLCK sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-SALES_OFFICE_DESCR sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-SALES_ORG_DESCR sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-SALES_GROUP_DESCR sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-DISTR_CHANNEL_DESCR sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-DIVISION_DESCR sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-DELIV_BLOCK_DESCR sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-BILLING_BLOCK_DESCR sy-vline 
WA_MONITOR_STATUS_LIST_HEADER_STR-ORDER_REASON_DESCR sy-vline      INTO ld_text SEPARATED BY SPACE.

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