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jdbc: invalid column number

purnima das
Greenhorn

Joined: Sep 15, 2000
Posts: 14
i am using win 98/ jdk1.2.2/and oracle odbc driver.
the database is oracle8i.
i have no idea as to what kind of driver it is.
here is my problem.
i have the same tables in MSaccess and oracle.
the program works fine with access. but, with oracle i have a strange problem.
java.sql.exception:Invalid colum number<1>
please help..
Anonymous
Ranch Hand

Joined: Nov 22, 2008
Posts: 18944
At first glance it sound as thou you might have a typo...
Check you connection reference variables.
If it is not a type....
Please post code along with table layouts.
I have access to a NT box JDK1.3 JDBC 2.0 MS-ACCESS 2.0 and ORACLe 7.3.4
ttyl, Monty
Phil Owens
Greenhorn

Joined: Sep 15, 2000
Posts: 4
When does the problem occur? DUring what operation? Have you isolated that? Is the column reference refering to a ResultSet or ResultSetMetaData? Or is it a Statment, Prepared Statement, or Callable Statement? Where in your code does the error happen?
Phil
purnima das
Greenhorn

Joined: Sep 15, 2000
Posts: 14
sorry for not giving details.
i was trying to fetch data from the database using Statement interface.
i've made a mistake in the order of retrival of columns.
i changed the order and got the result.
James Carman
Ranch Hand

Joined: Feb 20, 2001
Posts: 580
From the java.sql.ResultSet javadoc...
"For maximum portability, result set columns within each row should be read in left-to-right order, and each column should be read only once."


James Carman, President<br />Carman Consulting, Inc.
Jeroen Wenting
Ranch Hand

Joined: Oct 12, 2000
Posts: 5093
That is only required when needing portability to JDBC 1.0 drivers (though it may give some performance benefit depending on how the individual drivers are coded).


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