ABAP Select data from SAP table DB6_XCHG_RESRC 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 DB6_XCHG_RESRC 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 DB6_XCHG_RESRC. 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 DB6_XCHG_RESRC 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_DB6_XCHG_RESRC TYPE STANDARD TABLE OF DB6_XCHG_RESRC,
      WA_DB6_XCHG_RESRC TYPE DB6_XCHG_RESRC,
      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: <DB6_XCHG_RESRC> TYPE DB6_XCHG_RESRC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DB6_XCHG_RESRC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DB6_XCHG_RESRC
  INTO TABLE IT_DB6_XCHG_RESRC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DB6_XCHG_RESRC
*  INTO TABLE @DATA(IT_DB6_XCHG_RESRC2).
*--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_DB6_XCHG_RESRC INDEX 1 INTO DATA(WA_DB6_XCHG_RESRC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DB6_XCHG_RESRC ASSIGNING <DB6_XCHG_RESRC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DB6_XCHG_RESRC>-RESOURCE = 1.
<DB6_XCHG_RESRC>-HOSTNAME = 1.
<DB6_XCHG_RESRC>-OS_NAME = 1.
<DB6_XCHG_RESRC>-OS_VERSION = 1.
<DB6_XCHG_RESRC>-OS_RELEASE = 1.

ENDLOOP.

LOOP AT IT_DB6_XCHG_RESRC INTO WA_DB6_XCHG_RESRC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DB6_XCHG_RESRC-MACHINE_ID, sy-vline,
  WA_DB6_XCHG_RESRC-OS_LEVEL, sy-vline,
  WA_DB6_XCHG_RESRC-CPU_TOTAL, sy-vline,
  WA_DB6_XCHG_RESRC-CPU_ONLINE, sy-vline,
  WA_DB6_XCHG_RESRC-CPU_CONFIGURED, sy-vline,
  WA_DB6_XCHG_RESRC-CPU_SPEED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DB6_XCHG_RESRC 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_DB6_XCHG_RESRC 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_DB6_XCHG_RESRC INTO WA_DB6_XCHG_RESRC.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_DB6_XCHG_RESRC_STR, 
RESOURCE TYPE STRING,
HOSTNAME TYPE STRING,
OS_NAME TYPE STRING,
OS_VERSION TYPE STRING,
OS_RELEASE TYPE STRING,
MACHINE_ID TYPE STRING,
OS_LEVEL TYPE STRING,
CPU_TOTAL TYPE STRING,
CPU_ONLINE TYPE STRING,
CPU_CONFIGURED TYPE STRING,
CPU_SPEED TYPE STRING,
CPU_TIMEBASE TYPE STRING,
CPU_HMT_DEGREE TYPE STRING,
CPU_CORES_PER_SOCKET TYPE STRING,
MEMORY_TOTAL TYPE STRING,
MEMORY_FREE TYPE STRING,
MEMORY_SWAP_TOTAL TYPE STRING,
MEMORY_SWAP_FREE TYPE STRING,
VIRTUAL_MEM_TOTAL TYPE STRING,
VIRTUAL_MEM_FREE TYPE STRING,
CPU_LOAD_SHORT TYPE STRING,
CPU_LOAD_MEDIUM TYPE STRING,
CPU_LOAD_LONG TYPE STRING,
CPU_USAGE_TOTAL TYPE STRING,
DBPARTITIONNUM_LIST TYPE STRING,
CPU_LOAD_AVAILABLE TYPE STRING,
COMPTIME TYPE STRING,
PARTITN TYPE STRING,
TIME_SELECTION TYPE STRING,
FROM_DATE TYPE STRING,
FROM_TIME TYPE STRING,
TO_DATE TYPE STRING,
TO_TIME TYPE STRING,
TIME_FRAME TYPE STRING,
RANGETYPE TYPE STRING,
TIME_ZONE TYPE STRING,
GRANULARITY TYPE STRING,
TIME_RANGE_READONLY TYPE STRING,
TIME_RANGE_HIDDEN TYPE STRING,
TIME_RANGE_DESCR TYPE STRING,
CONFIRM_ENABLED TYPE STRING,
GRANULARITY_ENABLED TYPE STRING,
AGGREGATE TYPE STRING,
DRILLDOWN TYPE STRING,
MEMBER_SELECTION TYPE STRING,
SELECTED_MEMBER TYPE STRING,
MULTI_SELECTION TYPE STRING,
SELECTED_GROUP TYPE STRING,
HOSTNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DB6_XCHG_RESRC_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_DB6_XCHG_RESRC_STR-RESOURCE sy-vline 
WA_DB6_XCHG_RESRC_STR-HOSTNAME sy-vline 
WA_DB6_XCHG_RESRC_STR-OS_NAME sy-vline 
WA_DB6_XCHG_RESRC_STR-OS_VERSION sy-vline 
WA_DB6_XCHG_RESRC_STR-OS_RELEASE sy-vline 
WA_DB6_XCHG_RESRC_STR-MACHINE_ID sy-vline 
WA_DB6_XCHG_RESRC_STR-OS_LEVEL sy-vline 
WA_DB6_XCHG_RESRC_STR-CPU_TOTAL sy-vline 
WA_DB6_XCHG_RESRC_STR-CPU_ONLINE sy-vline 
WA_DB6_XCHG_RESRC_STR-CPU_CONFIGURED sy-vline 
WA_DB6_XCHG_RESRC_STR-CPU_SPEED sy-vline 
WA_DB6_XCHG_RESRC_STR-CPU_TIMEBASE sy-vline 
WA_DB6_XCHG_RESRC_STR-CPU_HMT_DEGREE sy-vline 
WA_DB6_XCHG_RESRC_STR-CPU_CORES_PER_SOCKET sy-vline 
WA_DB6_XCHG_RESRC_STR-MEMORY_TOTAL sy-vline 
WA_DB6_XCHG_RESRC_STR-MEMORY_FREE sy-vline 
WA_DB6_XCHG_RESRC_STR-MEMORY_SWAP_TOTAL sy-vline 
WA_DB6_XCHG_RESRC_STR-MEMORY_SWAP_FREE sy-vline 
WA_DB6_XCHG_RESRC_STR-VIRTUAL_MEM_TOTAL sy-vline 
WA_DB6_XCHG_RESRC_STR-VIRTUAL_MEM_FREE sy-vline 
WA_DB6_XCHG_RESRC_STR-CPU_LOAD_SHORT sy-vline 
WA_DB6_XCHG_RESRC_STR-CPU_LOAD_MEDIUM sy-vline 
WA_DB6_XCHG_RESRC_STR-CPU_LOAD_LONG sy-vline 
WA_DB6_XCHG_RESRC_STR-CPU_USAGE_TOTAL sy-vline 
WA_DB6_XCHG_RESRC_STR-DBPARTITIONNUM_LIST sy-vline 
WA_DB6_XCHG_RESRC_STR-CPU_LOAD_AVAILABLE sy-vline 
WA_DB6_XCHG_RESRC_STR-COMPTIME sy-vline 
WA_DB6_XCHG_RESRC_STR-PARTITN sy-vline 
WA_DB6_XCHG_RESRC_STR-TIME_SELECTION sy-vline 
WA_DB6_XCHG_RESRC_STR-FROM_DATE sy-vline 
WA_DB6_XCHG_RESRC_STR-FROM_TIME sy-vline 
WA_DB6_XCHG_RESRC_STR-TO_DATE sy-vline 
WA_DB6_XCHG_RESRC_STR-TO_TIME sy-vline 
WA_DB6_XCHG_RESRC_STR-TIME_FRAME sy-vline 
WA_DB6_XCHG_RESRC_STR-RANGETYPE sy-vline 
WA_DB6_XCHG_RESRC_STR-TIME_ZONE sy-vline 
WA_DB6_XCHG_RESRC_STR-GRANULARITY sy-vline 
WA_DB6_XCHG_RESRC_STR-TIME_RANGE_READONLY sy-vline 
WA_DB6_XCHG_RESRC_STR-TIME_RANGE_HIDDEN sy-vline 
WA_DB6_XCHG_RESRC_STR-TIME_RANGE_DESCR sy-vline 
WA_DB6_XCHG_RESRC_STR-CONFIRM_ENABLED sy-vline 
WA_DB6_XCHG_RESRC_STR-GRANULARITY_ENABLED sy-vline 
WA_DB6_XCHG_RESRC_STR-AGGREGATE sy-vline 
WA_DB6_XCHG_RESRC_STR-DRILLDOWN sy-vline 
WA_DB6_XCHG_RESRC_STR-MEMBER_SELECTION sy-vline 
WA_DB6_XCHG_RESRC_STR-SELECTED_MEMBER sy-vline 
WA_DB6_XCHG_RESRC_STR-MULTI_SELECTION sy-vline 
WA_DB6_XCHG_RESRC_STR-SELECTED_GROUP sy-vline 
WA_DB6_XCHG_RESRC_STR-HOSTNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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