Frequently Querying the DMV - sys.dm_exec_sessions, sys.dm_exec_connections and sys.dm_exec_requests












0















Could frequently (e.g. 5 seconds) querying the below DMVs from a custom tool to get the connection info impact performance on SQL server? I understand this would give a snapshot at that point.
SQL audit logs probably the best way to get this info but It would help if I get any guidance based on your experience with the DMV.



select sys.dm_exec_sessions.session_id, host_name as [Connecting machine name], client_net_address AS [Connecting machine IP],
program_name,client_interface_name,login_name,nt_domain,nt_user_name, name as DatabaseName,
sys.dm_exec_sessions.status AS [Session status],command,r.Status AS [Request Status],
last_request_start_time,last_request_end_time,sys.dm_exec_sessions.status,r.status, text, *
from sys.dm_exec_sessions inner join sys.dm_exec_connections on sys.dm_exec_sessions.session_id = sys.dm_exec_connections.session_id
inner join sys.dm_exec_requests r on sys.dm_exec_connections.connection_id = r.connection_id
inner join sys.databases on r.database_id = sys.databases.database_id
cross apply sys.dm_exec_sql_text(r.sql_handle)









share|improve this question



























    0















    Could frequently (e.g. 5 seconds) querying the below DMVs from a custom tool to get the connection info impact performance on SQL server? I understand this would give a snapshot at that point.
    SQL audit logs probably the best way to get this info but It would help if I get any guidance based on your experience with the DMV.



    select sys.dm_exec_sessions.session_id, host_name as [Connecting machine name], client_net_address AS [Connecting machine IP],
    program_name,client_interface_name,login_name,nt_domain,nt_user_name, name as DatabaseName,
    sys.dm_exec_sessions.status AS [Session status],command,r.Status AS [Request Status],
    last_request_start_time,last_request_end_time,sys.dm_exec_sessions.status,r.status, text, *
    from sys.dm_exec_sessions inner join sys.dm_exec_connections on sys.dm_exec_sessions.session_id = sys.dm_exec_connections.session_id
    inner join sys.dm_exec_requests r on sys.dm_exec_connections.connection_id = r.connection_id
    inner join sys.databases on r.database_id = sys.databases.database_id
    cross apply sys.dm_exec_sql_text(r.sql_handle)









    share|improve this question

























      0












      0








      0








      Could frequently (e.g. 5 seconds) querying the below DMVs from a custom tool to get the connection info impact performance on SQL server? I understand this would give a snapshot at that point.
      SQL audit logs probably the best way to get this info but It would help if I get any guidance based on your experience with the DMV.



      select sys.dm_exec_sessions.session_id, host_name as [Connecting machine name], client_net_address AS [Connecting machine IP],
      program_name,client_interface_name,login_name,nt_domain,nt_user_name, name as DatabaseName,
      sys.dm_exec_sessions.status AS [Session status],command,r.Status AS [Request Status],
      last_request_start_time,last_request_end_time,sys.dm_exec_sessions.status,r.status, text, *
      from sys.dm_exec_sessions inner join sys.dm_exec_connections on sys.dm_exec_sessions.session_id = sys.dm_exec_connections.session_id
      inner join sys.dm_exec_requests r on sys.dm_exec_connections.connection_id = r.connection_id
      inner join sys.databases on r.database_id = sys.databases.database_id
      cross apply sys.dm_exec_sql_text(r.sql_handle)









      share|improve this question














      Could frequently (e.g. 5 seconds) querying the below DMVs from a custom tool to get the connection info impact performance on SQL server? I understand this would give a snapshot at that point.
      SQL audit logs probably the best way to get this info but It would help if I get any guidance based on your experience with the DMV.



      select sys.dm_exec_sessions.session_id, host_name as [Connecting machine name], client_net_address AS [Connecting machine IP],
      program_name,client_interface_name,login_name,nt_domain,nt_user_name, name as DatabaseName,
      sys.dm_exec_sessions.status AS [Session status],command,r.Status AS [Request Status],
      last_request_start_time,last_request_end_time,sys.dm_exec_sessions.status,r.status, text, *
      from sys.dm_exec_sessions inner join sys.dm_exec_connections on sys.dm_exec_sessions.session_id = sys.dm_exec_connections.session_id
      inner join sys.dm_exec_requests r on sys.dm_exec_connections.connection_id = r.connection_id
      inner join sys.databases on r.database_id = sys.databases.database_id
      cross apply sys.dm_exec_sql_text(r.sql_handle)






      dmv






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 26 mins ago









      Ashish GuptaAshish Gupta

      1165




      1165






















          0






          active

          oldest

          votes











          Your Answer








          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "182"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: false,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fdba.stackexchange.com%2fquestions%2f231967%2ffrequently-querying-the-dmv-sys-dm-exec-sessions-sys-dm-exec-connections-and%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes
















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Database Administrators Stack Exchange!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fdba.stackexchange.com%2fquestions%2f231967%2ffrequently-querying-the-dmv-sys-dm-exec-sessions-sys-dm-exec-connections-and%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          Liste der Baudenkmale in Friedland (Mecklenburg)

          Single-Malt-Whisky

          Czorneboh