adding new awr analysis tools

Author: gwenshap

top_excel.sql

@@ -0,0 +1,29 @@
+select * from dba_hist_snapshot order by snap_id
+108 132
+
+with awr_ranks as
+(
+select snap_id, sql_id,
+                           buffer_gets_delta,
+                           dense_rank() over (partition by snap_id order by buffer_gets_delta desc) gets_rank,
+                           cpu_time_delta,
+                           dense_rank() over (partition by snap_id order by cpu_time_delta desc) cpu_rank,
+                           elapsed_time_delta,
+                           dense_rank() over (partition by snap_id order by elapsed_time_delta desc) elapsed_rank,
+                           executions_delta,
+                           dense_rank() over (partition by snap_id order by executions_delta desc) executions_rank
+                     from sys.wrh$_sqlstat
+), rank as
+(
+       select level rank from dual connect by level <= 5
+)
+select snap_id,
+                           rank,
+                           max(case gets_rank when rank then to_char(buffer_gets_delta)||': '||sql_id end) gets_sql,
+                           max(case cpu_rank when rank then to_char(round(cpu_time_delta/1000000,2))||': '||sql_id end) cpu_sql,
+                           max(case elapsed_rank when rank then to_char(round(elapsed_time_delta/1000000,2))||': '||sql_id end) elapsed_sql,
+                           max(case executions_rank when rank then  to_char(executions_delta)||': '||sql_id end) executions_sql
+              from awr_ranks, rank
+              where snap_id between 110 and 131
+              group by snap_id, rank
+              order by snap_id, rank;

top_queries.sql

@@ -0,0 +1,52 @@
+set serveroutput on
+declare
+clobsqltext CLOB;
+v_start_snap_id number := 110;
+v_end_snap_id number := 131;
+begin
+for v_sql_id in (select sql_id,count(*) cnt from (
+select snap_id, sql_id,
+buffer_gets_delta,
+dense_rank() over (partition by snap_id order by buffer_gets_delta desc) gets_rank,
+cpu_time_delta,
+dense_rank() over (partition by snap_id order by cpu_time_delta desc) cpu_rank,
+elapsed_time_delta,
+dense_rank() over (partition by snap_id order by elapsed_time_delta desc) elapsed_rank
+--,executions_delta
+--,dense_rank() over (partition by snap_id order by executions_delta desc) executions_rank
+from sys.wrh$_sqlstat
+where snap_id>=v_start_snap_id and snap_id<=v_end_snap_id)
+where gets_rank<=5 or cpu_rank<=5 or elapsed_rank<=5 
+--or executions_rank<=5
+group by sql_id
+order by cnt desc)
+loop
+dbms_output.put_line('SQL='||v_sql_id.sql_id || ' was top SQL ' || v_sql_id.cnt || ' times');
+
+for line in (select plan_table_output from table(DBMS_XPLAN.DISPLAY_AWR(v_sql_id.sql_id)))
+loop
+dbms_output.put_line(line.plan_table_output);
+END LOOP;
+
+for line in (select snap_id,executions_delta execs,
+round(buffer_gets_delta/executions_delta,2) gets_per_exec,
+round(rows_processed_delta/executions_delta,2) rows_per_exec,
+round((elapsed_time_delta/1000000)/executions_delta,2) ela_per_exec
+from sys.wrh$_sqlstat
+where sql_id=v_sql_id.sql_id
+and executions_delta > 0)
+loop
+dbms_output.put_line('snapshot = ' || line.snap_id || ' ** execs = ' || line.execs
+|| ' ** gets_per_exec = ' || line.gets_per_exec || ' ** rows_per_exec ' || line.rows_per_exec || ' ** ela_per_exec '|| line.ela_per_exec);
+end loop;
+
+for line in ( select snap_id,name, position, datatype_string, value_string from dba_hist_sqlbind where sql_id=v_sql_id.sql_id)
+loop
+if line.value_string is not null then
+dbms_output.put_line('**** bind variables for snapshot = ' || line.snap_id || ' name=' || line.name
+|| ' position=' || line.position || ' datatype=' || line.datatype_string || ' value=' || line.value_string);
+end if;
+end loop;
+end loop;
+END;
+/