Unfortunately we need to use a Type 4 driver, so OCI will not work.
So is there no other datatype in Oracle to store text (< 100,000
characters) besided LONG? I'm not storing huge amounts of text,
usually < 30,000 characters, I think. So, performance would
probably be sufficient in a Type 4 driver, I just can use
VARCHAR2 because of its limitations (it won't accept more than 4000
characters I think).
Thanks for your response.
Chris
On Fri, 14 Feb 2003 20:32:37 +0000, D.Y. wrote:
> I am not sure if Oracle implemented LOB APIs in the Thin Driver in 9i. If I
> have to guess I'd say no because performance would have been horrible.
>
> You can always access LOBs using the JDBC OCI driver. You would have to create
> a separate, dedicated connection for the LOB streams. There are some good code
> examples in JDBC Developer's Guide.
>
>
> "Chris Gokey" <cgokey_at_gcmd.nasa.gov> wrote in message news:<pan.2003.02.14.23.26.56.253111_at_gcmd.nasa.gov>...
>> Hi everyone,
>>
>> Here is my specs to give some context:
>>
>> Oracle 9.2.0
>> Redhat 8.0
>> java version "1.4.1_01"
>> JDBC Thin Driver (ojdbc.jar, latest off the web site)
>>
>> I tried storing/retrieving data from Oracle using CLOBs and it looks like
>> this will not work. Attached is a short example of storing data
>> to a CLOB and later retrieving it. Here is the sample table that I
>> created:
>>
>> create table test (summary CLOB);
>>
>> And here is the error I received:
>>
>> ----------------
>>
>> [cgokey_at_cgokey cgokey]$ java md.clients.Test Exception in thread "main"
>> java.sql.SQLException: Io exception: Connection reset at
>> oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
>> at
>> oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
>> at
>> oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:333)
>> at
>> oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:2061)
>> at
>> oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:1940)
>> at
>> oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2709)
>> at
>> oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:589)
>> at md.clients.Test.main(Test.java:33)
>>
>> ----------------
>>
>> I'm trying to store the CLOB using:
>> st.setCharacterStream(1,new StringReader(summary),summary.length());
>> st.executeUpdate();
>>
>> I think this is the right way to do it. I've been told it is also
>> possible to do this with stored procedures, but I'd like to keep my code
>> as database independant as possible and use the method above or some
>> slight variation where I don't have to cast to Oracle classes.
>>
>> I read somewhere the CLOBS are supported now under the latest Oracle thin
>> driver, am I doing something wrong?
>>
>> Is there any other data type in Oracle that can store text (<100,000
>> characters) besides CLOB and LONG. The LONG datatype will not work
>> for me because I have a table with more than one column with LONG.
>>
>> Any help would be greatly appreciated :)
>>
>> Chris
Received on Sat Feb 15 2003 - 20:21:02 CST
