oracle rdbms workshop (part1)
TRANSCRIPT
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Taras LyuklyanchukMay 8, 2015
Oracle RDBMS Workshop, Part 1
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1977
SDL
Lab
1979
Rel
ation
al S
oftw
are,
Inc.
19
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e 2
1982
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Syst
ems
1983
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319
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1985
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cle
519
86 O
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e 5.
119
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PL/
SQL
1989
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6.2
1992
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cle
719
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e 7.
119
96 O
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e 7.
319
97 O
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e 8
1998
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8.1
1999
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8.2
2000
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8.3
2001
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920
04 O
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.120
05 O
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.220
07 O
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.1
Oracle Database Evolution
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Supported Platforms
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Instance Architecture
Управляющие файлы Файлы журналовФайлы данных
Серверные процессы
Процессы пользователей
Разделяемый пул
Кэш буферов БДБуфер
журналов
SGA
LGWR
DBWR
PMON
SMON SNPn LCKn RECO Snnn Dnnn
Pnnn
CKPT
ARCH
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Oracle Database Clustering
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Oracle Database Listener
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Oracle Database Client Software
JDBC Driver Oracle Client (Fat)
JDBCTHIN
JDBC OCI
OCIlibrary ODBC
Instant Client
ODBCOCI
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SQLPLUS Utility
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Transparent Network Substrate
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TNSNAMES.ORA
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SCHEMA == USER + HIS OBJECT
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Transactions: BEGIN
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Transactions: COMMIT
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Transactions: ROLLBACK
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What is DUAL?
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Using DUAL Table
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ANSI SQL JOIN
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Oracle SQL JOIN
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Sequences
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begin if (null = null) then dbms_output.put_line('null == null'); end if;
if (null != null) then dbms_output.put_line('null != null'); end if;
if (null is null) then dbms_output.put_line('null is null'); end if;
if ('' is null) then dbms_output.put_line('empty string is null'); end if;
end;
null is nullempty string is null
What is NULL?
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PL/SQL Engine
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PL/SQL block
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PL/SQL Object Types
FUNCTION Функция
PROCEDURE Процедура
TRIGGER Триггер
PACKAGE Заголовок пакета
PACKAGE BODY Тело пакета
TYPE Заголовок типа
TYPE BODY Тело типа
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Procedures & Functions
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PL/SQL Packages
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create or replace type t_soap as object( debug integer, timeout integer, httpcode integer, envelope xmltype, response xmltype, hdrx xmltype, reqx xmltype, hdrp t_param_list, reqp t_param_list, constructor function t_soap(p_ws_url varchar2, p_ws_ns varchar2, p_ws_method varchar2, p_timeout integer default 30, p_username varchar2 default null, p_password varchar2 default null, p_persistent integer default 0) return self as result,
create or replace type body t_soap as constructor function t_soap(p_ws_url varchar2, p_ws_ns varchar2, p_ws_method varchar2, p_timeout integer default 30, p_username varchar2 default null, p_password varchar2 default null, p_persistent integer default 0) return self as result as begin self.debug := 0; self.http_ok := utl_http.HTTP_OK; self.http_method := 'POST'; self.http_charset := 'UTF-8'; self.xml_charset := 'UTF8'; self.ws_ns := p_ws_ns; self.ws_url := p_ws_url; self.ws_method := p_ws_method; self.hdrp := t_param_list(); self.reqp := t_param_list(); self.timeout := p_timeout; self.username := p_username; self.password := p_password; self.persistent := p_persistent; self.build(); return; end;
Type – same as class in OOP
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Create type instance declare soap t_soap; begin -- SOAP-конверт soap := t_soap(p_ws_ns => OMS_NS, p_ws_url => OMS_URL, p_ws_method => 'Request', p_persistent => OMS_PERSISTENT); -- заголовки soap.set_header('User', OMS_USER); soap.set_header('Pwd', OMS_PASSWORD); -- запрос soap.set_request(dbms_xmldom.getxmltype(doc)); -- вызываем soap.invoke(); …
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Java Application in Database
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Java Class Demo
/* JDelete.java */import java.io.File; public class JDelete { public static int delete (String fileName) { File myFile = new File (fileName); boolean retval = myFile.delete(); if (retval) return 1; else return 0; }}
CREATE OR REPLACE FUNCTION fdelete ( file IN VARCHAR2) RETURN NUMBERAS LANGUAGE JAVA NAME 'JDelete.delete ( java.lang.String) return int';/
begin fdelete('c:\temp\test.tmp');end;/
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Thank you