using PL/SQL and APEX

Transcription

1 Creating My Own PL/SQL Performance Monitoring Tool 1 using PL/SQL and APEX Why do DBA s get all the cool tools? Gary J. Propeck, Ph.D.

2 2 Objectives Develop an Application around the PL/SQL Profiler (DBMS_PROFILER) Monitor PL/SQL Profiler Data Collection Create Baselines and Thresholds Report Threshold Violations during PL/SQL execution. Use only Oracle-supplied tools SQL Developer (17.2.0) Application Express (APEX 5.1.3) Oracle RDBMS SQL*Plus

3 3 Objectives Demonstrate PL/SQL Programming Techniques Anonymous Blocks Named Procedures Named Functions Packages Package Body Package Specification Triggers

4 4 Objectives Use PL/SQL Encapsulation. No Privileges for Select, Insert, Update, or Delete granted on tables. Data Entered and Manipulated via: PL/SQL APEX Create Package to invoke PL/SQL Profiler (DBMS_PROFILER).

5 5 MOTIVATION Why do this?

6 6 Motivating Factors Unemployment? Business? Retirement?

7 7 Why do DBA s get all the cool Oracle tools? Oracle Enterprise Manager (OEM) AWR ADDM ASH Metrics and Baselines

8 8 But Why?

9 9 Install the PL/SQL Profiler

10 10 Install the PL/SQL Profiler $ORACLE_HOME\rdbms\admin proftab.sql PLSQL_PROFILER_RUNS PLSQL_PROFILER_DATA PLSQL_PROFILER_UNITS profload.sql DBMS_PROFILER

11 11 PLSQL_PROFILER_RUNS Installed into user schema

12 12 PLSQL_PROFILER_DATA Installed in user schema

13 13 PLSQL_PROFILER_DATA Installed in user schema

14 14 DBMS_PROFILER RUN AS SYSDBA

15 15 Create Procedures to invoke and stop PL/SQL Profiler

16 16 Create Procedures and Functions for Starting and Stopping the PL/SQL Profiler start_profiler_proc1.pls start_profiler_proc2.pls start_profiler_func1.pls start_profiler_func2.pls

17 17 Start_profiler_proc2.pls

18 18

19 19 Test using an Anonymous Block

20 20 The Anonymous Block

21 21 Capture The Anonymous Block

22 22 Results

23 23 Test using a Named Procedure

24 24 Compare the Anonymous Block to a Named Procedure

25 25 Compare the Anonymous Block to a Named Procedure

26 26 Does Flushing the Shared Pool change Performance

27 27 Using DBMS_PROFILER to Demonstrate the Effectiveness of the Shared Pool

28 28 Display Data with APEX

29 29 Query for APEX Chart

30 30 APEX App Home Page

31 31 Chart of Execution - Flush Shared Pool for Each Execution

32 32 Chart of Execution - Flush Shared Pool for First Execution

33 33 Create a PL/SQL Package

34 34 Benefits of a PL/SQL Package

35 35 Package Specification

36 36 SQL Developer Code Snippets

37 37 Compare Explicit Cursor Fetch Syntaxes Basic Fetch Cursor For Loop Bulk Collect

38 38 Basic Fetch

39 39 Cursor For Loop

40 40 Bulk Collect

41 41 View Result Data in APEX

42 42 Regular Fetch in APEX

43 43 Regular Fetch Chart with Average

44 44 Regular Fetch Chart with Average and Standard Deviations

45 45 Build a semi-automatic Collection System Tables PL/SQL Package PL/SQL Triggers APEX Test

46 46 Create New User TOPT_PROF Schema TOPT_PROF Owns PL/SQL Profiler Tables OWNS TOPT_PROF Collection Tables Owns TOPT_PROF_PKG Grants EXECUTE on TOPT_PROF_PKG to PUBLIC NO SELECT, INSERT, UPDATE, DELETE Privileges Granted on TOPT_PROF Tables Schema Owner GPRO1 owns COMP_REG_BULK and demo table

47 47 Create Collection Tables TOPT_PROF_COLLECTIONS TOPT_PROF_BASELINE TOPT_PROF_VIOLATIONS

48 48 DBMS_SCHEDULER Job

49 49 Create an Issue with the Cursor Query Alter index BIG_TAB_OWNER_IDX invisible; Query cannot use index

50 50 TOPT_PROF_APP APEX Application

51 51 APEX FORM on Table TOPT_PROF_COLLECTIONS

52 52 Regular Fetch Chart of Profiler Runs

53 53 Create Baseline (and Threshold 3 STD.)

54 54 Chart with Baseline and Threshold

55 55 Create an Issue with the Cursor Query Alter index BIG_TAB_OWNER_IDX invisible; Query cannot use index

56 56 Chart with Induced Error

57 57 Reporting Threshold Violations

58 58 TO-DO List Send notification Incorporate the Hierarchical Profiler Clean up and standardize APEX Application

59 59 FINAL THOUGHTS Yes we can!!!