awr 收集时间

windows 收集 awr 报告，一分钟一个。

https://www.realdbamagic.com/manually-generating-awr-report/

One of my customers asked me to check performance on his production database server but could not allow any access to the server itself. He asked if I could generate the AWR reports from his client machine and since it’s not really trivial (or hard) I created this script.

When we want to generate the AWR report, we usually run the awrrpt.sql script. We don’t need to be on the database server for that – we just need the awrrpt script and the scripts it calls – so any database server installation will do. Once we connect to the database and run the script, it will automatically run the relevant queries and scripts and generate the report.

Underneath all the scripts there is DBMS package called DBMS_WORKLOAD_REPOSITORY which we can call ourselves. In this case, since I didn’t have the scripts, I had to use it but I can think of other cases where it make sense to use it (for example, for generating multiple reports, or automatically send reports by email).

There are two ways to generate the report. We can generate a text version or HTML version – and indeed, there are two functions for that: AWRRPT_HTML_TYPE_TABLE and AWRRPT_TEXT_TYPE_TABLE. Those function accept these parameters, so let’s see where we get the data for that:

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FUNCTION AWR_REPORT_HTML RETURNS AWRRPT_HTML_TYPE_TABLE  Argument Name                  Type                    In/Out Default?  ------------------------------ ----------------------- ------ --------  L_DBID                         NUMBER                  IN  L_INST_NUM                     NUMBER                  IN  L_BID                          NUMBER                  IN  L_EID                          NUMBER                  IN  L_OPTIONS                      NUMBER                  IN     DEFAULT   FUNCTION AWR_REPORT_TEXT RETURNS AWRRPT_TEXT_TYPE_TABLE  Argument Name                  Type                    In/Out Default?  ------------------------------ ----------------------- ------ --------  L_DBID                         NUMBER                  IN  L_INST_NUM                     NUMBER                  IN  L_BID                          NUMBER                  IN  L_EID                          NUMBER                  IN  L_OPTIONS                      NUMBER                  IN     DEFAULT

In order to get the DBID, Instance number and a list of snap ids we can use (here, from the last day), we can run this query:

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SELECT DBID, instance_number, snap_id, begin_interval_time, end_interval_time   FROM dba_hist_snapshot  where begin_interval_time > sysdate - 1  ORDER BY snap_id

In order to generate the report as cleanly as possible we can use this script.

For HTML output:

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Set heading off Set trimspool off Set linesize 1500 Set termout on Set feedback off   Spool awr_from_console.htm select output from table(dbms_workload_repository.awr_report_html(&dbid, &inst_num, &bid, &eid)); spool off;

For TEXT output:

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Set heading off Set trimspool off Set linesize 80 Set feedback off Set termout on   Spool awr_from_console.txt select output from table(dbms_workload_repository.awr_report_text(&dbid, &inst_num, &bid, &eid)); spool off;

And the result will be:

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SQL> Set heading off SQL> Set trimspool off SQL> Set linesize 80 SQL> Set termout on SQL> SQL> Spool awr_from_console.txt SQL> select output from table(dbms_workload_repository.awr_report_text(&dbid, &inst_num, &bid, &eid)); Enter value for dbid: 2492639615 Enter value for inst_num: 1 Enter value for bid: 953 Enter value for eid: 954 old   1: select output from table(dbms_workload_repository.awr_report_text(&dbid, &inst_num, &bid, &eid)) new   1: select output from table(dbms_workload_repository.awr_report_text(2492639615, 1, 953, 954))   WORKLOAD REPOSITORY report for   DB Name         DB Id    Instance     Inst Num Startup Time    Release     RAC ------------ ----------- ------------ -------- --------------- ----------- --- GHTEST        2492639615 ghtest              1 15-Dec-16 09:18 11.2.0.4.0  NO   […awr report…]