Question

我正在测试official teradata website的fastload示例代码。为了谨慎起见，我使用samples.jar here

上的示例FastLoad1.csv

当我运行此示例代码时，我在此行中收到错误

  pstmtFld.setAsciiStream(1, dataStream, -1); // This method is not implemented

如何将setAsciiStream与预准备语句一起使用？

我正确使用setAsciiStream吗？

以下是控制台中的错误消息

 Attempting connection to Teradata with FastLoadCSV.
 Connection to Teradata with FastLoadCSV established.
 Creating a PreparedStatement object with FastLoadCSV.
 Created a PreparedStatement object with FastLoadCSV.
 Checking connection for warnings
 Streaming FastLoad1.csv
SQL State = HY000, Error Code = 1151
com.teradata.jdbc.jdbc_4.util.JDBCException: [Teradata JDBC Driver] [TeraJDBC 14.10.00.17] [Error 1151] [SQLState HY000] A failure occurred while setting a parameter value for database table "xxxxxxxxx"."my_table". Details of the failure can be found in the exception chain that is accessible with getNextException.
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:93)
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:68)
    at com.teradata.jdbc.jdbc.fastload.FastLoadManagerPreparedStatement.setAsciiStream(FastLoadManagerPreparedStatement.java:1366)
    at T20208JD.main(T20208JD.java:160)

SQL State = HY000, Error Code = 1155
com.teradata.jdbc.jdbc_4.util.JDBCException: [Teradata JDBC Driver] [TeraJDBC 14.10.00.17] [Error 1155] [SQLState HY000] The next failure(s) in the exception chain occurred in FastLoadPreparedStatement[0] of 16 FastLoadPreparedStatement(s).
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:93)
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:73)
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:101)
    at com.teradata.jdbc.jdbc.fastload.FastLoadManagerPreparedStatement.setAsciiStream(FastLoadManagerPreparedStatement.java:1361)
    at T20208JD.main(T20208JD.java:160)

SQL State = HY000, Error Code = 1093
com.teradata.jdbc.jdbc_4.util.JDBCException: [Teradata JDBC Driver] [TeraJDBC 14.10.00.17] [Error 1093] [SQLState HY000] This method is not implemented
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:93)
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:63)
    at com.teradata.jdbc.jdbc.fastload.FastLoadPreparedStatement.setAsciiStream(FastLoadPreparedStatement.java:759)
    at com.teradata.jdbc.jdbc.fastload.FastLoadManagerPreparedStatement.setAsciiStream(FastLoadManagerPreparedStatement.java:1359)
    at T20208JD.main(T20208JD.java:160)


SQL State = HY000, Error Code = 1151
com.teradata.jdbc.jdbc_4.util.JDBCException: [Teradata JDBC Driver] [TeraJDBC 14.10.00.17] [Error 1151] [SQLState HY000] A failure occurred while setting a parameter value for database table "xxxxxxxx"."my_table". Details of the failure can be found in the exception chain that is accessible with getNextException.
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:93)
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:68)
    at com.teradata.jdbc.jdbc.fastload.FastLoadManagerPreparedStatement.setAsciiStream(FastLoadManagerPreparedStatement.java:1366)
    at T20208JD.main(T20208JD.java:160)

SQL State = HY000, Error Code = 1155
com.teradata.jdbc.jdbc_4.util.JDBCException: [Teradata JDBC Driver] [TeraJDBC 14.10.00.17] [Error 1155] [SQLState HY000] The next failure(s) in the exception chain occurred in FastLoadPreparedStatement[0] of 16 FastLoadPreparedStatement(s).
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:93)
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:73)
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:101)
    at com.teradata.jdbc.jdbc.fastload.FastLoadManagerPreparedStatement.setAsciiStream(FastLoadManagerPreparedStatement.java:1361)
    at T20208JD.main(T20208JD.java:160)

SQL State = HY000, Error Code = 1093
com.teradata.jdbc.jdbc_4.util.JDBCException: [Teradata JDBC Driver] [TeraJDBC 14.10.00.17] [Error 1093] [SQLState HY000] This method is not implemented
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:93)
    at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDriverJDBCException(ErrorFactory.java:63)
    at com.teradata.jdbc.jdbc.fastload.FastLoadPreparedStatement.setAsciiStream(FastLoadPreparedStatement.java:759)
    at com.teradata.jdbc.jdbc.fastload.FastLoadManagerPreparedStatement.setAsciiStream(FastLoadManagerPreparedStatement.java:1359)
    at T20208JD.main(T20208JD.java:160)

Exception in thread "main" java.lang.IllegalStateException: Sample failed.
    at T20208JD.main(T20208JD.java:336)

Answer 1

我尝试编译示例T20208JD，只修改了DNS /用户/密码，它在我的Mac上运行顺畅。所以 pstmtFld.setAsciiStream（1，dataStream，-1）; 似乎是正确的。

我使用了JDBC 14.10.00.18，您可以尝试从Teradata的Developer Exchange下载最新版本14.10.00.26：http://downloads.teradata.com/download/connectivity/jdbc-driver

我认为这不会解决问题，但是......

Answer 2

我认为错误是由-1引起的，第三个参数告诉setAsciiStream byteStream有-1个字节。

我过去使用过setAsciiStream()时，如果超过254个字符，我会使用bufferInputStream和String的大小。

    String convRule;
     ...
    if (convRule.length() > 254) {
        int size = convRule.length();  
        BufferedInputStream bais = new BufferedInputStream( new ByteArrayInputStream( convRule.getBytes() ) );  
        pStmt.setAsciiStream( 4, bais, size );
    }

所以，比较我和你的，我可以告诉第三个参数是不同的，应该是输入流的length。

如何将ascii流绑定到预准备语句

2 个答案: