ABAP Select data from SAP table DB6_XCHG_HADR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DB6_XCHG_HADR 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_HADR. 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_HADR 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_HADR TYPE STANDARD TABLE OF DB6_XCHG_HADR,
      WA_DB6_XCHG_HADR TYPE DB6_XCHG_HADR,
      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_HADR> TYPE DB6_XCHG_HADR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DB6_XCHG_HADR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DB6_XCHG_HADR
  INTO TABLE IT_DB6_XCHG_HADR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DB6_XCHG_HADR
*  INTO TABLE @DATA(IT_DB6_XCHG_HADR2).
*--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_HADR INDEX 1 INTO DATA(WA_DB6_XCHG_HADR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DB6_XCHG_HADR ASSIGNING <DB6_XCHG_HADR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DB6_XCHG_HADR>-TIME_SELECTION = 1.
<DB6_XCHG_HADR>-FROM_DATE = 1.
<DB6_XCHG_HADR>-FROM_TIME = 1.
<DB6_XCHG_HADR>-TO_DATE = 1.
<DB6_XCHG_HADR>-TO_TIME = 1.

ENDLOOP.

LOOP AT IT_DB6_XCHG_HADR INTO WA_DB6_XCHG_HADR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DB6_XCHG_HADR-TIME_FRAME, sy-vline,
  WA_DB6_XCHG_HADR-RANGETYPE, sy-vline,
  WA_DB6_XCHG_HADR-TIME_ZONE, sy-vline,
  WA_DB6_XCHG_HADR-GRANULARITY, sy-vline,
  WA_DB6_XCHG_HADR-TIME_RANGE_READONLY, sy-vline,
  WA_DB6_XCHG_HADR-TIME_RANGE_HIDDEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DB6_XCHG_HADR 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_HADR 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_HADR INTO WA_DB6_XCHG_HADR.


*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_HADR_STR, 
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,
HADR TYPE STRING,
SNAPSHOT_TIMESTAMP TYPE STRING,
TIME_PERIOD TYPE STRING,
HADR_ROLE TYPE STRING,
REPLAY_TYPE TYPE STRING,
HADR_SYNCMODE TYPE STRING,
STANDBY_ID TYPE STRING,
LOG_STREAM_ID TYPE STRING,
HADR_STATE TYPE STRING,
PRIMARY_MEMBER_HOST TYPE STRING,
PRIMARY_INSTANCE TYPE STRING,
PRIMARY_MEMBER TYPE STRING,
STANDBY_MEMBER_HOST TYPE STRING,
STANDBY_INSTANCE TYPE STRING,
STANDBY_MEMBER TYPE STRING,
HADR_CONNECT_STATUS TYPE STRING,
HADR_CONNECT_STATUS_TIME TYPE STRING,
HEARTBEAT_INTERVAL TYPE STRING,
HADR_TIMEOUT TYPE STRING,
TIME_SINCE_LAST_RECV TYPE STRING,
PEER_WAIT_LIMIT TYPE STRING,
LOG_HADR_WAIT_CUR TYPE STRING,
LOG_HADR_WAIT_TIME TYPE STRING,
LOG_HADR_WAITS_TOTAL TYPE STRING,
SOCK_SEND_BUF_REQUESTED TYPE STRING,
SOCK_SEND_BUF_ACTUAL TYPE STRING,
SOCK_RECV_BUF_REQUESTED TYPE STRING,
SOCK_RECV_BUF_ACTUAL TYPE STRING,
PRIMARY_LOG_FILE TYPE STRING,
PRIMARY_LOG_PAGE TYPE STRING,
PRIMARY_LOG_POS TYPE STRING,
PRIMARY_LOG_TIME TYPE STRING,
STANDBY_LOG_FILE TYPE STRING,
STANDBY_LOG_PAGE TYPE STRING,
STANDBY_LOG_POS TYPE STRING,
STANDBY_LOG_TIME TYPE STRING,
AVG_HADR_LOG_GAP TYPE STRING,
STANDBY_REPLAY_LOG_FILE TYPE STRING,
STANDBY_REPLAY_LOG_PAGE TYPE STRING,
STANDBY_REPLAY_LOG_POS TYPE STRING,
STANDBY_REPLAY_LOG_TIME TYPE STRING,
STANDBY_RECV_REPLAY_GAP TYPE STRING,
STANDBY_REPLAY_DELAY TYPE STRING,
STANDBY_RECV_BUF_SIZE TYPE STRING,
AVG_STANDBY_RECV_BUF_PERCENT TYPE STRING,
MAX_STANDBY_RECV_BUF_PERCENT TYPE STRING,
STANDBY_SPOOL_LIMIT TYPE STRING,
PEER_WINDOW TYPE STRING,
PEER_WINDOW_END TYPE STRING,
TAKEOVER_APP_REMAINING_PRIMARY TYPE STRING,
TAKEOVER_APP_REMAINING_STANDBY TYPE STRING,
READS_ON_STANDBY_ENABLED TYPE STRING,
STANDBY_REPLAY_ONLY_WINDOW_ACT TYPE STRING,
STANDBY_REPLAY_ONLY_WINDOW_STA TYPE STRING,
STANDBY_REPLAY_ONLY_WINDOW_TRA TYPE STRING,
PRIMARY_LOG_VOL_MB TYPE STRING,
STANDBY_LOG_VOL_MB TYPE STRING,
STANDBY_REPLAY_LOG_VOL_MB TYPE STRING,
STANDBY_REPLAY_GAP_MB TYPE STRING,
STANDBY_REPLAY_GAP_SECONDS TYPE STRING,
AVG_LOG_WAIT_TIME TYPE STRING,
MAX_HADR_LOG_GAP TYPE STRING,
AVG_REPLAY_LOG_VOL_MB_PER_MIN TYPE STRING,
AVG_PRIMARY_LOG_VOL_MB_PER_MIN TYPE STRING,
HADR_LAST_TAKEOVER_TIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DB6_XCHG_HADR_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_HADR_STR-TIME_SELECTION sy-vline 
WA_DB6_XCHG_HADR_STR-FROM_DATE sy-vline 
WA_DB6_XCHG_HADR_STR-FROM_TIME sy-vline 
WA_DB6_XCHG_HADR_STR-TO_DATE sy-vline 
WA_DB6_XCHG_HADR_STR-TO_TIME sy-vline 
WA_DB6_XCHG_HADR_STR-TIME_FRAME sy-vline 
WA_DB6_XCHG_HADR_STR-RANGETYPE sy-vline 
WA_DB6_XCHG_HADR_STR-TIME_ZONE sy-vline 
WA_DB6_XCHG_HADR_STR-GRANULARITY sy-vline 
WA_DB6_XCHG_HADR_STR-TIME_RANGE_READONLY sy-vline 
WA_DB6_XCHG_HADR_STR-TIME_RANGE_HIDDEN sy-vline 
WA_DB6_XCHG_HADR_STR-TIME_RANGE_DESCR sy-vline 
WA_DB6_XCHG_HADR_STR-CONFIRM_ENABLED sy-vline 
WA_DB6_XCHG_HADR_STR-GRANULARITY_ENABLED sy-vline 
WA_DB6_XCHG_HADR_STR-AGGREGATE sy-vline 
WA_DB6_XCHG_HADR_STR-DRILLDOWN sy-vline 
WA_DB6_XCHG_HADR_STR-MEMBER_SELECTION sy-vline 
WA_DB6_XCHG_HADR_STR-SELECTED_MEMBER sy-vline 
WA_DB6_XCHG_HADR_STR-MULTI_SELECTION sy-vline 
WA_DB6_XCHG_HADR_STR-SELECTED_GROUP sy-vline 
WA_DB6_XCHG_HADR_STR-HADR sy-vline 
WA_DB6_XCHG_HADR_STR-SNAPSHOT_TIMESTAMP sy-vline 
WA_DB6_XCHG_HADR_STR-TIME_PERIOD sy-vline 
WA_DB6_XCHG_HADR_STR-HADR_ROLE sy-vline 
WA_DB6_XCHG_HADR_STR-REPLAY_TYPE sy-vline 
WA_DB6_XCHG_HADR_STR-HADR_SYNCMODE sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_ID sy-vline 
WA_DB6_XCHG_HADR_STR-LOG_STREAM_ID sy-vline 
WA_DB6_XCHG_HADR_STR-HADR_STATE sy-vline 
WA_DB6_XCHG_HADR_STR-PRIMARY_MEMBER_HOST sy-vline 
WA_DB6_XCHG_HADR_STR-PRIMARY_INSTANCE sy-vline 
WA_DB6_XCHG_HADR_STR-PRIMARY_MEMBER sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_MEMBER_HOST sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_INSTANCE sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_MEMBER sy-vline 
WA_DB6_XCHG_HADR_STR-HADR_CONNECT_STATUS sy-vline 
WA_DB6_XCHG_HADR_STR-HADR_CONNECT_STATUS_TIME sy-vline 
WA_DB6_XCHG_HADR_STR-HEARTBEAT_INTERVAL sy-vline 
WA_DB6_XCHG_HADR_STR-HADR_TIMEOUT sy-vline 
WA_DB6_XCHG_HADR_STR-TIME_SINCE_LAST_RECV sy-vline 
WA_DB6_XCHG_HADR_STR-PEER_WAIT_LIMIT sy-vline 
WA_DB6_XCHG_HADR_STR-LOG_HADR_WAIT_CUR sy-vline 
WA_DB6_XCHG_HADR_STR-LOG_HADR_WAIT_TIME sy-vline 
WA_DB6_XCHG_HADR_STR-LOG_HADR_WAITS_TOTAL sy-vline 
WA_DB6_XCHG_HADR_STR-SOCK_SEND_BUF_REQUESTED sy-vline 
WA_DB6_XCHG_HADR_STR-SOCK_SEND_BUF_ACTUAL sy-vline 
WA_DB6_XCHG_HADR_STR-SOCK_RECV_BUF_REQUESTED sy-vline 
WA_DB6_XCHG_HADR_STR-SOCK_RECV_BUF_ACTUAL sy-vline 
WA_DB6_XCHG_HADR_STR-PRIMARY_LOG_FILE sy-vline 
WA_DB6_XCHG_HADR_STR-PRIMARY_LOG_PAGE sy-vline 
WA_DB6_XCHG_HADR_STR-PRIMARY_LOG_POS sy-vline 
WA_DB6_XCHG_HADR_STR-PRIMARY_LOG_TIME sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_LOG_FILE sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_LOG_PAGE sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_LOG_POS sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_LOG_TIME sy-vline 
WA_DB6_XCHG_HADR_STR-AVG_HADR_LOG_GAP sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_REPLAY_LOG_FILE sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_REPLAY_LOG_PAGE sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_REPLAY_LOG_POS sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_REPLAY_LOG_TIME sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_RECV_REPLAY_GAP sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_REPLAY_DELAY sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_RECV_BUF_SIZE sy-vline 
WA_DB6_XCHG_HADR_STR-AVG_STANDBY_RECV_BUF_PERCENT sy-vline 
WA_DB6_XCHG_HADR_STR-MAX_STANDBY_RECV_BUF_PERCENT sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_SPOOL_LIMIT sy-vline 
WA_DB6_XCHG_HADR_STR-PEER_WINDOW sy-vline 
WA_DB6_XCHG_HADR_STR-PEER_WINDOW_END sy-vline 
WA_DB6_XCHG_HADR_STR-TAKEOVER_APP_REMAINING_PRIMARY sy-vline 
WA_DB6_XCHG_HADR_STR-TAKEOVER_APP_REMAINING_STANDBY sy-vline 
WA_DB6_XCHG_HADR_STR-READS_ON_STANDBY_ENABLED sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_REPLAY_ONLY_WINDOW_ACT sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_REPLAY_ONLY_WINDOW_STA sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_REPLAY_ONLY_WINDOW_TRA sy-vline 
WA_DB6_XCHG_HADR_STR-PRIMARY_LOG_VOL_MB sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_LOG_VOL_MB sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_REPLAY_LOG_VOL_MB sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_REPLAY_GAP_MB sy-vline 
WA_DB6_XCHG_HADR_STR-STANDBY_REPLAY_GAP_SECONDS sy-vline 
WA_DB6_XCHG_HADR_STR-AVG_LOG_WAIT_TIME sy-vline 
WA_DB6_XCHG_HADR_STR-MAX_HADR_LOG_GAP sy-vline 
WA_DB6_XCHG_HADR_STR-AVG_REPLAY_LOG_VOL_MB_PER_MIN sy-vline 
WA_DB6_XCHG_HADR_STR-AVG_PRIMARY_LOG_VOL_MB_PER_MIN sy-vline 
WA_DB6_XCHG_HADR_STR-HADR_LAST_TAKEOVER_TIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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