ORACLE query data from the SQL Server, you can create in SQL Server to ORACLE linked server to achieve, but according to 32-bit, 64-bit machines and software, you need to implement a different driver.
On 32-bit machines, by accessing the interface: Microsoft OLE DB Provide for Oracle, to achieve.
1, machine and software environment
The machine is a virtual machine, the installation of windows xp, SQL Server 20008R2, Oracle 10g 10.2.0.1.0.
2, ORACLE environment settings
Connect oracle:
C:\Documents and Settings\Administrator>sqlplus / as sysdba SQL*Plus: Release 10.2.0.1.0 - Production on 星期四 3月 13 15:22:29 2014 Copyright (c) 1982, 2005, Oracle. All rights reserved. 连接到: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production With the Partitioning, OLAP and Data Mining options
Modify the password for the user scott tiger, and to unlock the account, try to sign in, look-up table:
SQL> alter user scott identified by tiger ; the user has changed. SQL> alter user scott account unlock; users have been changed. SQL> connect scott / tiger Connected. SQL> the SELECT COUNT (*) from emp; COUNT (*) ---------- 14
View listener.ora is correct:
# listener.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME=orcl)
(ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
(SID_NAME =orcl)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
)
Pay particular attention to inside:
(SID_DESC =
(GLOBAL_DBNAME = orcl)
(ORACLE_HOME = C: \ the Oracle \ Product \ 10.2.0 \ db_1)
(SID_NAME = orcl)
)
In addition, see the tnsnames.ora is correct:
# tnsnames.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
特别是：
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
SQL> lsnrctl Host Status LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production's ON 13- March 15:23:31 -2014 .. Copyright (c) 1991, 2005, the Oracle All Rights Reserved Connecting to ( = the DESCRIPTION (ADDRESS = (the PROTOCOL = the IPC) (KEY = EXTPROC1))) LISTENER of the STATUS ------------------------ alias LISTENER version TNSLSNR for 32 -bit Windows: Version 10.2.0.1.0 - Production start date 13- March -2014 14:20:27 uptime 0 days 1 hour 3 minutes 6 seconds to track levels off security ON: Local OS Authentication the SNMP OFF listener parameter file C: \ oracle \ product \ 10.2.0 \ db_1 \ network \ admin \ listener.ora Listener log file C: \ oracle \ product \ 10.2.0 \ db_1 \ network \ log \ listener.log listening endpoint summary ... (the DESCRIPTION = (ADDRESS = (PROTOCOL = ipc) (PipeName = \\ \ pipe \. EXTPROC1ipc))) (the DESCRIPTION = (ADDRESS = (the PROTOCOL = TCP) (the HOST = 127.0.0.1) (PORT = 1521))) and services .. Abstract service "PLSExtProc" contains a routine. Routine "PLSExtProc", status UNKNOWN, this service includes a handler ... Services "orcl" contains a routine. Routine "orcl", status UNKNOWN, contains a handler for this service ... The command completed successfully
3, set up a linked server.
Of particular note is that the data source orcl refers: tnsnames.ora file orcl service name.
The first step, select "New Linked Server":
The second step, be sure to select Microsoft OLE DB Provide for Oracle:
The third step, enter the product: oracle, Data Source: orcl:
The fourth step, enter oracle user name and password, this setting according to the actual situation, after the input, determine the points like:
4, test queries
select * from openquery(xxx, 'SELECT * FROM emp')
Return result:
5, implemented in code:
EXEC master.dbo.sp_addlinkedserver
@server = N'ORACLE_SCOTT',
@srvproduct=N'ORACLE',
@provider=N'MSDAORA',
@datasrc=N'orcl'
go
/* For security reasons the linked server remote logins password is changed with ######## */
EXEC master.dbo.sp_addlinkedsrvlogin
@rmtsrvname=N'ORACLE_SCOTT',
@useself=N'False',
@locallogin=NULL,
@rmtuser=N'scott',
@rmtpassword='tiger'
GO
select * from openquery(ORACLE_SCOTT, 'SELECT * FROM scott.emp')
6、通过openrowset函数来实现，更简单。
select *
from openrowset('MSDAORA','orcl';'scott';'tiger','select * from SCOTT.EMP')