ORACLE的存储过程里怎么连接和访问SQL SERVER数据库(100) 最近要做一个接口,定时把SQL SERVER的数据搞到ORACLE我想在ORACLE 里做一个JOB,然后让JOB定时触发,然后去读SQL SERVER里的一张表,怎么实现。请详细说出实现过程,最好给实际例子。THANKS! 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 http://it.rising.com.cn/newSite/Channels/Safety/SysSafety/Safe_Database/200401/16-095413675.htm 如何在Oracle里设置访问SQL Server数据库?假设我们要在ORACLE里同时能访问SQL Server里默认的pubs数据库。 1、在安装了ORACLE9i Standard Edition或者ORACLE9i Enterprise Edition的windows机器上(IP:192.168.0.2), 产品要选了透明网关(Oracle Transparent Gateway)里访问Microsoft SQL Server数据库 $ORACLE9I_HOME\tg4msql\admin下新写initpubs.ora配置文件.initpubs.ora内容如下:HS_FDS_CONNECT_INFO="SERVER=SQLSERVER_HOSTNMAE;DATABASE=pubs"HS_DB_NAME=pubsHS_FDS_TRACE_LEVEL=OFFHS_FDS_RECOVERY_ACCOUNT=RECOVERHS_FDS_RECOVERY_PWD=RECOVER$ORACLE9I_HOME\network\admin 下listener.ora内容如下:LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.2)(PORT = 1521)) ) ) )SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (GLOBAL_DBNAME = test9) (ORACLE_HOME = d:\oracle\ora92) (SID_NAME = test9) ) (SID_DESC= (SID_NAME=pubs) (ORACLE_HOME=d:\Oracle\Ora92) (PROGRAM=tg4msql) ) ) 重启动这台做gateway的windows机器上(IP:192.168.0.2)TNSListener服务. (凡是按此步骤新增可访问的SQL Server数据库时,TNSListener服务都要重启动) 2、ORACLE8I,ORACLE9I的服务器端配置tnsnames.ora, 添加下面的内容: pubs = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.2)(PORT = 1521)) ) (CONNECT_DATA = (SID = pubs) ) (HS = pubs) ) 保存tnsnames.ora后,在命令行下tnsping pubs 出现类似提示,即为成功 Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.2)(PORT = 1521))) (CONNECT_DATA = (SID = pubs)) (HS = pubs))OK(20毫秒) 设置数据库参数global_names=false。 设置global_names=false不要求建立的数据库链接和目的数据库的全局名称一致。global_names=true则要求, 多少有些不方便。 oracle9i和oracle8i都可以在DBA用户下用SQL命令改变global_names参数 alter system set global_names=false; 建立公有的数据库链接: create public database link pubs connect to testuser identified by testuser_pwd using 'pubs'; 访问SQL Server下数据库里的数据: select * from stores@pubs;...... ...... 3、使用时的注意事项 ORACLE通过访问SQL Server的数据库链接时,用select * 的时候字段名是用双引号引起来的。 例如: create table stores as select * from stores@pubs;select zip from stores;ERROR 位于第 1 行:ORA-00904: 无效列名select "zip" from stores;zip-----980569278996745980149001989076 已选择6行。 用SQL Navigator或Toad看从SQL Server转移到ORACLE里的表的建表语句为: CREATE TABLE stores ("stor_id" CHAR(4) NOT NULL, "stor_name" VARCHAR2(40), "stor_address" VARCHAR2(40), "city" VARCHAR2(20), "state" CHAR(2), "zip" CHAR(5)) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 TABLESPACE users STORAGE ( INITIAL 131072 NEXT 131072 PCTINCREASE 0 MINEXTENTS 1 MAXEXTENTS 2147483645 )/ 总结: WINDOWS下ORACLE9i网关服务器在$ORACLE9I_HOME\tg4msql\admin目录下的initsqlserver_databaseid.ora WINDOWS下ORACLE9i网关服务器listener.ora里面 (SID_DESC= (SID_NAME=sqlserver_databaseid) (ORACLE_HOME=d:\Oracle\Ora92) (PROGRAM=tg4msql) ) UNIX或WINDOWS下ORACLE8I,ORACLE9I服务器tnsnames.ora里面 northwind = (DESCRIPTION =(ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.2)(PORT = 1521)) ) (CONNECT_DATA = (SID = sqlserver_databaseid) ) (HS = sqlserver_databaseid) )sqlserver_databaseid一致才行. 楼上的大哥,忘了说了,我的ORACLE 是安装在solaris 9系统上的SQL SERVER 是WIN2000能实现吗? 怎么实现? 可以考虑在程序页面读取sqlserver中的数据,更新oracle表,然后定时执行页面程序 创立数据库的连接create public database link hq.acme.com using 'sales';查询select * from [email protected]; 到itpub上查一下透明网关代理的文章! 视图问题 oracle 性能的优化 请问ORA-04052错误是怎么回事? 求一个sql语句 Oracle数据库sql脚本运行结束,如何退出? 谁知道有BLOB字段的表(或用户)怎么备份? 如何正确安装并配置oracle9i? 急!!oracle有有access自动编号 自动增加的的吗? 视图可以这样用吗 在线等待:各位大虾,小弟在使用Oracle server的时候,发现TNS:no listener…… pl/sql中的 function 能否嵌套使用? 建临时表的问题?没有权限怎么解决??
假设我们要在ORACLE里同时能访问SQL Server里默认的pubs数据库。 1、在安装了ORACLE9i Standard Edition或者ORACLE9i Enterprise Edition的windows机器上(IP:192.168.0.2), 产品要选了透明网关(Oracle Transparent Gateway)里访问Microsoft SQL Server数据库 $ORACLE9I_HOME\tg4msql\admin下新写initpubs.ora配置文件.
initpubs.ora内容如下:
HS_FDS_CONNECT_INFO="SERVER=SQLSERVER
_HOSTNMAE;DATABASE=pubs"
HS_DB_NAME=pubs
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
$ORACLE9I_HOME\network\admin 下listener.ora内容如下:
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.2)(PORT = 1521))
)
)
)SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = test9)
(ORACLE_HOME = d:\oracle\ora92)
(SID_NAME = test9)
)
(SID_DESC=
(SID_NAME=pubs)
(ORACLE_HOME=d:\Oracle\Ora92)
(PROGRAM=tg4msql)
)
) 重启动这台做gateway的windows机器上(IP:192.168.0.2)TNSListener服务. (凡是按此步骤新增可访问的SQL Server数据库时,TNSListener服务都要重启动) 2、ORACLE8I,ORACLE9I的服务器端配置tnsnames.ora, 添加下面的内容: pubs =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.2)(PORT = 1521))
)
(CONNECT_DATA =
(SID = pubs)
)
(HS = pubs)
)
保存tnsnames.ora后,在命令行下
tnsping pubs
出现类似提示,即为成功 Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.2)
(PORT = 1521))) (CONNECT_DATA = (SID = pubs)) (HS = pubs))
OK(20毫秒)
设置数据库参数global_names=false。 设置global_names=false不要求建立的数据库链接和目的数据库的全局名称一致。global_names=true则要求, 多少有些不方便。 oracle9i和oracle8i都可以在DBA用户下用SQL命令改变global_names参数 alter system set global_names=false;
建立公有的数据库链接: create public database link pubs
connect to testuser identified by testuser_pwd using 'pubs';
访问SQL Server下数据库里的数据: select * from stores@pubs;
...... ...... 3、使用时的注意事项 ORACLE通过访问SQL Server的数据库链接时,用select * 的时候字段名是用双引号引起来的。 例如: create table stores as select * from stores@pubs;
select zip from stores;
ERROR 位于第 1 行:
ORA-00904: 无效列名
select "zip" from stores;
zip
-----
98056
92789
96745
98014
90019
89076
已选择6行。 用SQL Navigator或Toad看从SQL Server转移到ORACLE里的表的建表语句为: CREATE TABLE stores
("stor_id" CHAR(4) NOT NULL,
"stor_name" VARCHAR2(40),
"stor_address" VARCHAR2(40),
"city" VARCHAR2(20),
"state" CHAR(2),
"zip" CHAR(5))
PCTFREE 10
PCTUSED 40
INITRANS 1
MAXTRANS 255
TABLESPACE users
STORAGE (
INITIAL 131072
NEXT 131072
PCTINCREASE 0
MINEXTENTS 1
MAXEXTENTS 2147483645
)
/
总结: WINDOWS下ORACLE9i网关服务器在$ORACLE9I_HOME\tg4msql\admin目录下的initsqlserver_databaseid.ora WINDOWS下ORACLE9i网关服务器listener.ora里面 (SID_DESC=
(SID_NAME=sqlserver_databaseid)
(ORACLE_HOME=d:\Oracle\Ora92)
(PROGRAM=tg4msql)
)
UNIX或WINDOWS下ORACLE8I,ORACLE9I服务器tnsnames.ora里面
northwind =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.2)(PORT = 1521))
)
(CONNECT_DATA =
(SID = sqlserver_databaseid)
)
(HS = sqlserver_databaseid)
)
sqlserver_databaseid一致才行.
SQL SERVER 是WIN2000
能实现吗? 怎么实现?
create public database link hq.acme.com
using 'sales';查询
select * from [email protected];