Linux上配置Unix ODBC连接Oracle数据库

作者:eygle

出处:http://blog.eygle.com

日期:January 05, 2005

Oracle10g前，Oracle并不提供UNIX/Linux下的ODBC驱动，用的最为广泛的是UnixOdbc，UnixOdbc的配置不算复杂，但是如果不顺利的话也会遇到一些问题。

今天成功安装配置了UnixOdbc把步骤总结一下供参考。
UnixOdbc可以在官方站点上下载。

以下是测试及配置步骤:

首先你需要安装Oracle客户端，并且确认网络可达。

1.使用isql进行测试

[root@magic root]# isql
**********************************************
* unixODBC - isql *
**********************************************
* Syntax *
* *
* isql DSN [UID [PWD]] [options] *
* *
* Options *
* *
* -b batch.(no prompting etc) *
* -dx delimit columns with x *
* -x0xXX delimit columns with XX, where *
* x is in hex, ie 0x09 is tab *
* -w wrap results in an HTML table *
* -c column names on first row. *
* (only used when -d) *
* -mn limit column display width to n *
* -v verbose. *
* -lx set locale to x *
* --version version *
* *
* Notes *
* *
* isql supports redirection and piping *
* for batch processing. *
* *
* Examples *
* *
* cat My.sql | isql WebDB MyID MyPWD -w *
* *
* Each line in My.sql must contain *
* exactly 1 SQL command except for the *
* last line which must be blank. *
* *
* Please visit; *
* *
* http://www.unixodbc.org *
* pharvey@codebydesign.com *
* nick@easysoft.com *
**********************************************

[root@magic root]# isql --versio
unixODBC 2.2.10
[root@magic root]# which isql
/usr/bin/isql


2./etc/odbc.ini文件配置

[ODBC Data Sources]
test = Oracle ODBC Driver DSN

[default]
Driver = /usr/local/easysoft/oracle/libesoracle.so

[test]
Driver = /usr/local/easysoft/oracle/libesoracle.so

Description = Oracle
server = 172.16.1.21
ServerType = Oracle
Port = 1521
User = username
Password = password
Database = ava
SID = ava
METADATA_ID = 0
ENABLE_USER_CATALOG = 1
ENABLE_SYNONYMS = 1


[default]
Driver = /usr/local/easysoft/oracle/libesoracle.so


3. /etc/odbcinst.ini 文件配置

;
; odbcinst.ini
;

[test]
Description=ODBC for ORACLE
Driver = /usr/local/easysoft/oracle/libesoracle.so

[ODBC]
Trace=1
Debug=1
Pooling=No


4.sqlnet.ora文件配置

NAMES.DIRECTORY_PATH= (TNSNAMES, ONAMES, HOSTNAME)

5.tnsnames.ora文件配置

 
  
ava =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.18.21)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SID = ava)
    )
  )

 
  

6.测试
 
  
 
  
[root@magic admin]# isql test -v
+---------------------------------------+
| Connected!                            |
|                                       |
| sql-statement                         |
| help [tablename]                      |
| quit                                  |
|                                       |
+---------------------------------------+
SQL> 


 
  
 
  
7.启动LDAP
 
 
  
 
  


[root@magic admin]# /usr/local/libexec/slapd -d 5 -f /home/eygle/openldap/slapd.conf

@(#) $OpenLDAP: slapd 2.2.17 (Dec 29 2004 20:45:12) $

        root@magic.hawa.cn:/home/eygle/openldap/openldap-2.2.17/servers/slapd

daemon_init: 
       
       
        
        

daemon_init: listen on ldap:///
        
        

daemon_init: 1 listeners to open...
        
        

ldap_url_parse_ext(ldap:///)
        
        

daemon: IPv6 socket() failed errno=97 (Address family not supported by protocol)
        
        

daemon: initialized ldap:///
        
        

daemon_init: 2 listeners opened
        
        

slapd init: initiated server.
        
        

==>backsql_initialize()
        
        

<==backsql_initialize()
        
        

>>> dnNormalize: 
        
        
         
         

=> ldap_bv2dn(cn=Subschema,0)
         
         

ldap_err2string
         
         

<= ldap_bv2dn(cn=Subschema)=0 Success
         
         

=> ldap_dn2bv(272)
         
         

ldap_err2string
         
         

....
         
         

==>backsql_open_db_conn()
         
         

backsql_open_db_conn(): connected, adding to tree
         
         

<==backsql_open_db_conn()
         
         

backsql_get_db_conn(): first call -- reading schema map
         
         

==>backsql_load_schema_map()
         
         

ldapinfo.dn_ru field exists in the schema
         
         

backsql_load_schema_map(): at_query "SELECT name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,
         
         

expect_return,sel_expr_u FROM ldap_attr_mappings WHERE oc_map_id=?"
         
         

<==backsql_load_schema_map()
         
         

<==backsql_get_db_conn()
         
         

==>backsql_free_db_conn()
         
         

backsql_free_db_conn(): closing db connection
         
         

==>backsql_close_db_conn()
         
         

<==backsql_close_db_conn()
         
         

<==backsql_free_db_conn()
         
         

<==backsql_db_open(): test succeeded, schema map loaded
         
         

slapd starting  
         
         


        
        
       
       
 
  
 
  
 
  
启动成功.
 
 
 

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        # oracle
      
        # unix
      
        # linux
      
  
 
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