sql语句如下
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select * from yhb_h t where t.user_id=56456464
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在执行检索数据的时候报如下的错误
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java.sql.SQLException: ORA-01722: 无效数字 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288) at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:743) at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:207) at oracle.jdbc.driver.T4CStatement.executeForRows(T4CStatement.java:946) at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1062) at oracle.jdbc.driver.T4CStatement.executeMaybeDescribe(T4CStatement.java:830) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1132) at oracle.jdbc.driver.OracleStatement.doScrollExecuteCommon(OracleStatement.java:4055) at oracle.jdbc.driver.OracleStatement.doScrollStmtExecuteQuery(OracleStatement.java:4195) at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:1279) at org.apache.tomcat.dbcp.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:208)
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原因是user_id字段是varchar2类型的,里面正常是都是数字,但是有个别人录入数据的时候里面录了字母。
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ORACLE将where t.user_id=56456464解释为where to_number(t.user_id)=56456464
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所以进行全表扫描的时候就在将user_id转成数值的时候报错了。
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解决的方法是将sql改成
select * from yhb_h t where t.user_id='56456464'
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