问题
I am testing fastload example code from an official teradata website . To err on the side of caution , I use the sample FastLoad1.csv located on their samples.jar here
When I run this sample code, I get an error in this line
pstmtFld.setAsciiStream(1, dataStream, -1); // This method is not implemented
How must setAsciiStream be used with a prepared statement ?
Am i using the setAsciiStream correctly ?
Here is the error message in console
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)
回答1:
I tried to compile the example T20208JD, just modified DNS/user/password and it run smoothly on my Mac. So pstmtFld.setAsciiStream(1, dataStream, -1); seems to be correct.
I used JDBC 14.10.00.18, you might try to download the latest version 14.10.00.26 from Teradata's Developer Exchange: http://downloads.teradata.com/download/connectivity/jdbc-driver
I don't think this will fix the problem, but...
回答2:
I think the error is caused by the -1, the third parameter, which tells setAsciiStream that the byteStream has -1 bytes.
When I have used setAsciiStream() in the past, I used a bufferInputStream and the the size of a String if it was over 254 characters.
String convRule;
...
if (convRule.length() > 254) {
int size = convRule.length();
BufferedInputStream bais = new BufferedInputStream( new ByteArrayInputStream( convRule.getBytes() ) );
pStmt.setAsciiStream( 4, bais, size );
}
So, comparing mine to yours I can tell the third parameter is different which should be the length of the input stream.
来源：https://stackoverflow.com/questions/22239215/how-to-bind-ascii-stream-to-a-prepared-statement