在Oracle配置MySQL数据库的dblink

[oracle@oracle169 ~]$ cd $ORACLE_BASE
[oracle@oracle169 app]$ mkdir tools
[oracle@oracle169 app]$ cd tools

[oracle@oracle169 tools]$ tar -zxvf unixODBC-2.2.14-linux-x86-64.tar.gz
[oracle@oracle169 tools]$ mkdir unixodbc-2.2.14
[oracle@oracle169 tools]$ mv usr/local/* unixodbc-2.2.14/
[oracle@oracle169 tools]$ rm -rf usr/

[oracle@oracle169 tools]$ tar -zxvf mysql-connector-odbc-5.3.7-linux-el6-x86-64bit.tar.gz
[oracle@oracle169 tools]$ mv mysql-connector-odbc-5.3.7-linux-el6-x86-64bit my5

[oracle@oracle169 tools]$ vim odbc.ini 
[testdb]    
Driver = /u01/app/tools/my5/lib/libmyodbc5a.so
SERVER =      #mysql 服务器 ip
PORT =        #mysql 数据库端口
USER =        #mysql 数据库用户名
PASSWORD =    #mysql 数据库密码
DATABASE =    #mysql 数据库
OPTION = 3
SOCKET =

export PATH=/u01/app/tools/unixODBC-2.2.14/bin:$PATH
export LD_LIBRARY_PATH=/u01/app/tools/unixODBC-2.2.14/lib:$LD_LIBRARY_PATH
export ODBCINI=/u01/app/tools/odbc.ini

testdb =
 (DESCRIPTION =
   (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
   (CONNECT_DATA =
     (SID = testdb))
     (HS=OK)
    )
  )

SID_LIST_LISTENER =
 (SID_LIST =
   (SID_DESC =
     (SID_NAME = testdb)
     (ORACLE_HOME =/u01/app/oracle)
     (PROGRAM = dg4odbc)
     (ENVS=LD_LIBRARY_PATH=/u01/app/tools/unixODBC-2.2.14/lib)
    )
  )    

[oracle@oracle169 tools]$ vim $ORACLE_HOME/hs/admin/inittestdb.ora
# This is a sample agent init file that contains the HS parameters that are
# needed for the Database Gateway for ODBC
 
# HS init parameters
 
HS_FDS_CONNECT_INFO = testdb
HS_FDS_FETCH_ROWS=100
HS_RPC_FETCH_SIZE=50000
HS_FDS_TRACE_LEVEL = off
HS_FDS_SHAREABLE_NAME = /u01/app/tools/unixODBC-2.2.14/lib/libodbc.so
HS_LANGUAGE=american_america.we8iso8859p1
HS_NLS_NCHAR=UCS2
#
# ODBC specific environment variables
#
set ODBCINI= /u01/app/tools/odbc.ini
 
#
# Environment variables required for the non-Oracle system
#
#set <envvar>=<value>

create public database link db_testdb connect to "mysql_user" identified by "password" using 'testdb';