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hibernate.cfg.xml
<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
 "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
  <session-factory>
    <!-- properties -->
    <!--
      <property name="dialect">org.hibernate.dialect.SQLServerDialect</property>
      <property name="connection.driver_class">com.microsoft.jdbc.sqlserver.SQLServerDriver</property>
      <property name="connection.url">jdbc:microsoft:sqlserver://192.168.0.118;databasename=saadmin</property>
      <property name="connection.username">sa</property>
      <property name="connection.password">saadmin</property>
    -->
    <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
    <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="connection.url">jdbc:mysql://192.168.0.117:3306/mysqldb?useUnicode=true&amp;characterEncoding=gb2312</property>
    <property name="connection.username">root</property>
    <property name="connection.password">adminroot</property>
    <property name="hibernate.c3p0.acquire_increment">1</property>
    <property name="hibernate.c3p0.idle_test_period">0</property>
  &nb


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Caused by: java.sql.SQLException: ORA-00918: column ambiguously defined
Caused by: com.ibatis.common.jdbc.exception.NestedSQLException:  
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