Daily Archives: 2010 年 11 月 04 日

sql server中操作mysql

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一、安装mysql官方的odbc驱动
mysql-connector-odbc-5.1.7-win32 myodbc驱动补丁（由于驱动自身有bug，发布了补丁）

二、配置odbc

三、创建mysql链接服务

EXEC sp_addlinkedserver 'MySQL50','','MSDASQL','mysql5_test';
EXEC sp_addlinkedsrvlogin 'MySQL50','false','sa','root','4020894';

四、执行相关查询

--查询操作
SELECT TOP 3 * FROM OPENQUERY (MySQL50 ,'select * from abc  ' ) ORDER BY Access_Time desc;
--插入操作
INSERT INTO OPENQUERY (MySQL50, ' SELECT * FROM abc')
values('aaa', 'bbb','ccc','dddd','eeee','2010-11-4','ggggggg')
--更新操作
UPDATE OPENQUERY (MySQL50, 'SELECT Cur_url FROM abc WHERE Pre_url = ''bbb''')
SET Cur_url = 'feifei';
--删除操作
DELETE OPENQUERY (MySQL50, 'SELECT Cur_url FROM abc WHERE Pre_url = ''bbb''')

ORACLE 外部表

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一、简单创建外部表
1、简单模拟外部文件
10,20,30
40,50,60
70,80,90
2、创建外部表用户名和授权

create user test identified by “123” default tablespace test quota unlimited on test;
grant RESOURCE,create session,create any directory to test;

3、创建目录

conn test/"123"
create directory ext as '/sdb/orcl/file';

4、创建外部表

 create table exttable(
　　id number,
     name varchar2(10),
     i number
)
organization external
　(
     type oracle_loader
　　default directory ext
　　access parameters
　　  (
         records delimited by newline
　　    fields terminated by ','
　　  )
     location('ext.dat')
　);

二、使用外部表管理alert文件

create directory alert as 'create directory bdump as '/oracle/u01/app/oracle/admin/db2/bdump';
create table alert_log
(
　text varchar2(400)
)
organization external
　(
     type oracle_loader
　　default directory alert
　　access parameters
　　(
        records delimited by newline
　　)
     location('alert_orcl.log')
　);
--查找到ora错误记录
select * from alert_log where TEXT like 'ORA-%';