如何在sybase IQ中执行PreparedStatement(select object_id())？

Question

我们有一个与sybase iq数据库对话的小型jdbc应用程序，它会：

String objectName = "SYS.SYSWEBSERVICE"; 
//The actual value of objectName does not matter.
//It could be any view object in the sys schema

PreparedStatement preparedStatement =
    connection.prepareStatement("SELECT OBJECT_ID(?)");
preparedStatement.setString(1, objectName);
preparedStatement.executeQuery();

我们得到以下错误：

java.sql.SQLException: JZ0SA: Prepared Statement: Input parameter not set, index: 0.s

我查看了http://infocenter.sybase.com/help/index.jsp?topic=/com.sybase.infocenter.dc39001.0700/html/prjdbc0700/chdgjjig.htm

JZ0SA: Prepared Statement: Input parameter not set, index: _____.
Action: Be sure that each input parameter has a value.

当我更改代码时

setString(0, objectName)

我得到的是：

java.lang.ArrayIndexOutOfBoundsException: -1
    at com.sybase.jdbc4.jdbc.SybPreparedStatement.a(Unknown Source)
    at com.sybase.jdbc4.jdbc.SybPreparedStatement.a(Unknown Source)
    at com.sybase.jdbc4.jdbc.SybPreparedStatement.a(Unknown Source)
    at com.sybase.jdbc4.jdbc.SybPreparedStatement.setString(Unknown Source)

我们正在使用jconn-4.0.jar:

Manifest-Version: 1.0
Created-By: 1.6.0_03 (Sun Microsystems Inc.)
Main-Class: SybVersion

Name: com/sybase/jdbcx/
Implementation-Vendor: "Sybase, Inc."
Specification-Title: "jConnect for JDBC 4.0"
Implementation-Title: "com.sybase.jdbcx"
Implementation-Version: "Build (26502)"
Specification-Version: "7.0"
Specification-Vendor: "Sybase, Inc."

有人能告诉我我做错了什么吗？谢谢你。

Answer 1

尽管API文档可能会说什么，但我认为参数索引必须是从零开始的，也许这是您正在使用的JDBC驱动程序中的一个bug。尝试使用从零开始的索引。setString(0,....）；