Settting Up Your Enviroment
Setting up the SCOTT/TIGER Schema
- Executing the Script
- Creating the Schema without the Script
- Setting Your Environment
Setting up Autotrace in SQL*Plus
- Initial Setup
- cd [ORACLE_HOME]/rdbms/admin
- log into SQL*Plus as SYSTEM
- run @utlxplan
- run CREATE PUBLIC SYNONYM PLAN_TABLE FOR PLAN_TABLE;
- run GRANT ALL ON PLAN_TABLE TO PUBLIC;
- -----------------------------------------------------------------------
- cd [ORACLE_HOME]/sqlplus/admin
- log into SQL*Plus as SYS or AS SYSDBA
- run @plustrce
- run GRANT PLUSTRACE TO PUBLIC;
安装成功后，测试用例
[oracle@DG1 ~]$ sqlplus HR/HR SQL*Plus: Release 11.2.0.1.0 Production on Sat Apr 27 23:19:10 2013 Copyright (c) 1982, 2009, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> set autot on SQL> select * from dept; DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID ------------- ------------------------------ ---------- ----------- 10 Administration 200 1700 20 Marketing 201 1800 30 Purchasing 114 1700 40 Human Resources 203 2400 50 Shipping 121 1500 60 IT 103 1400 70 Public Relations 204 2700 80 Sales 145 2500 90 Executive 100 1700 100 Finance 108 1700 110 Accounting 205 1700 DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID ------------- ------------------------------ ---------- ----------- 120 Treasury 1700 130 Corporate Tax 1700 140 Control And Credit 1700 150 Shareholder Services 1700 160 Benefits 1700 170 Manufacturing 1700 180 Construction 1700 190 Contracting 1700 200 Operations 1700 210 IT Support 1700 220 NOC 1700 DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID ------------- ------------------------------ ---------- ----------- 230 IT Helpdesk 1700 240 Government Sales 1700 250 Retail Sales 1700 260 Recruiting 1700 270 Payroll 1700 27 rows selected. Execution Plan ---------------------------------------------------------- Plan hash value: 3383998547 -------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | -------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 27 | 567 | 4 (0)| 00:00:01 | | 1 | TABLE ACCESS FULL| DEPT | 27 | 567 | 4 (0)| 00:00:01 | -------------------------------------------------------------------------- Statistics ---------------------------------------------------------- 1 recursive calls 0 db block gets 9 consistent gets 0 physical reads 0 redo size 1670 bytes sent via SQL*Net to client 534 bytes received via SQL*Net from client 3 SQL*Net roundtrips to/from client 0 sorts (memory) 0 sorts (disk) 27 rows processed
- Controlling the Report
set autot on explain
SQL> select * from dept; DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID ------------- ------------------------------ ---------- ----------- 10 Administration 200 1700 20 Marketing 201 1800 30 Purchasing 114 1700 40 Human Resources 203 2400 50 Shipping 121 1500 60 IT 103 1400 70 Public Relations 204 2700 80 Sales 145 2500 90 Executive 100 1700 100 Finance 108 1700 110 Accounting 205 1700 DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID ------------- ------------------------------ ---------- ----------- 120 Treasury 1700 130 Corporate Tax 1700 140 Control And Credit 1700 150 Shareholder Services 1700 160 Benefits 1700 170 Manufacturing 1700 180 Construction 1700 190 Contracting 1700 200 Operations 1700 210 IT Support 1700 220 NOC 1700 DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID ------------- ------------------------------ ---------- ----------- 230 IT Helpdesk 1700 240 Government Sales 1700 250 Retail Sales 1700 260 Recruiting 1700 270 Payroll 1700 27 rows selected. Execution Plan ---------------------------------------------------------- Plan hash value: 3383998547 -------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | -------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 27 | 567 | 4 (0)| 00:00:01 | | 1 | TABLE ACCESS FULL| DEPT | 27 | 567 | 4 (0)| 00:00:01 | --------------------------------------------------------------------------
set autot on statistics
SQL> set autot on statistics SQL> select * from dept; DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID ------------- ------------------------------ ---------- ----------- 10 Administration 200 1700 20 Marketing 201 1800 30 Purchasing 114 1700 40 Human Resources 203 2400 50 Shipping 121 1500 60 IT 103 1400 70 Public Relations 204 2700 80 Sales 145 2500 90 Executive 100 1700 100 Finance 108 1700 110 Accounting 205 1700 DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID ------------- ------------------------------ ---------- ----------- 120 Treasury 1700 130 Corporate Tax 1700 140 Control And Credit 1700 150 Shareholder Services 1700 160 Benefits 1700 170 Manufacturing 1700 180 Construction 1700 190 Contracting 1700 200 Operations 1700 210 IT Support 1700 220 NOC 1700 DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID ------------- ------------------------------ ---------- ----------- 230 IT Helpdesk 1700 240 Government Sales 1700 250 Retail Sales 1700 260 Recruiting 1700 270 Payroll 1700 27 rows selected. Statistics ---------------------------------------------------------- 0 recursive calls 0 db block gets 9 consistent gets 0 physical reads 0 redo size 1670 bytes sent via SQL*Net to client 534 bytes received via SQL*Net from client 3 SQL*Net roundtrips to/from client 0 sorts (memory) 0 sorts (disk) 27 rows processed
set autot on
SQL> set autot on SQL> select * from dept; DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID ------------- ------------------------------ ---------- ----------- 10 Administration 200 1700 20 Marketing 201 1800 30 Purchasing 114 1700 40 Human Resources 203 2400 50 Shipping 121 1500 60 IT 103 1400 70 Public Relations 204 2700 80 Sales 145 2500 90 Executive 100 1700 100 Finance 108 1700 110 Accounting 205 1700 DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID ------------- ------------------------------ ---------- ----------- 120 Treasury 1700 130 Corporate Tax 1700 140 Control And Credit 1700 150 Shareholder Services 1700 160 Benefits 1700 170 Manufacturing 1700 180 Construction 1700 190 Contracting 1700 200 Operations 1700 210 IT Support 1700 220 NOC 1700 DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID ------------- ------------------------------ ---------- ----------- 230 IT Helpdesk 1700 240 Government Sales 1700 250 Retail Sales 1700 260 Recruiting 1700 270 Payroll 1700 27 rows selected. Execution Plan ---------------------------------------------------------- Plan hash value: 3383998547 -------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | -------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 27 | 567 | 4 (0)| 00:00:01 | | 1 | TABLE ACCESS FULL| DEPT | 27 | 567 | 4 (0)| 00:00:01 | -------------------------------------------------------------------------- Statistics ---------------------------------------------------------- 0 recursive calls 0 db block gets 9 consistent gets 0 physical reads 0 redo size 1670 bytes sent via SQL*Net to client 534 bytes received via SQL*Net from client 3 SQL*Net roundtrips to/from client 0 sorts (memory) 0 sorts (disk) 27 rows processed
set autot traceonly
SQL> set autot traceonly SQL> select * from dept; 27 rows selected. Execution Plan ---------------------------------------------------------- Plan hash value: 3383998547 -------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | -------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 27 | 567 | 4 (0)| 00:00:01 | | 1 | TABLE ACCESS FULL| DEPT | 27 | 567 | 4 (0)| 00:00:01 | -------------------------------------------------------------------------- Statistics ---------------------------------------------------------- 0 recursive calls 0 db block gets 9 consistent gets 0 physical reads 0 redo size 1670 bytes sent via SQL*Net to client 534 bytes received via SQL*Net from client 3 SQL*Net roundtrips to/from client 0 sorts (memory) 0 sorts (disk) 27 rows processed
Setting up Statspack
Custom Scripts
- Runstats
- Mystat
- Show_Space
- Big_Table
Coding Conventions
create or replace package body my_pkg as g_variable varchar2(25); procudreu p(p_variable in varchar2) is l_variable varchar2(25); begin null; end; end; /
代码命名规范:
g_variable:全局变量以g_开头
p_variable:参数变量以p_开头
l_variable:本地变量以l_开头