Linux上配置Unix ODBC连接Oracle数据库

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 *
* [email protected] *
* [email protected] *
**********************************************

[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) $ [email protected]:/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.