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jdbc hello world
I am in a java mood today, let’s check how to print hello world with jdbc import java.sql.*; public class HelloWorld { public static void main(String[] args) throws SQLException {...
View Articlejdbc ssl
I already wrote about jdbc hello world and listener with tcps. Let’s combine both technologies ! TCPS.java import java.util.Properties; import java.security.Security; import java.sql.*; import...
View ArticleHow to unload blob from the database?
There is more than one post on how to unload blob from the database, mostly in plsql with utl_file.put_raw (see note 330146.1) and with java with FileOutputStream (see note 247546.1) Unfortunately both...
View ArticleTNSNAMES and Active Directory
It is highly probable you already have MS AD in your company. Probably you use a local tnsnames.ora. Apart from setting a Oracle Internet Directory or Oracle Virtual Directory, there is one more option...
View ArticleAdvanced Queuing hello world
First for those who are looking for the difference between Queuing, Advanced Queuing (AQ) and Streams Advanced Queuing, there is none. There is no Beginner Queuing and Advanced Queuing was renamed to...
View Articlemulticonsumer Queue with an Oracle Type from Java
You have a multi consumer queue with a user defined type CREATE TYPE topic_message AS OBJECT(Subject VARCHAR2(30),Text VARCHAR2(80)) / BEGIN dbms_aqadm.create_queue_table( 'topic_queue_table',...
View Articlecheck jdbc version
There are 2 versions to check when using jdbc. The first one is in the name of the file : classes12.zip works with JDK 1.2 and later, ojdbc7.jar works with java7 and later. Even if classes12.zip works...
View ArticleTransaction guard
Getting the logical transaction id in 12c will greatly simplify your error handling and enhance your business continuity in your application. In 11g and below, your java code use to look like try {...
View ArticleTCPS and SSLv2Hello
Thanks to platform independence, the same java code work on different platforms. import java.util.Properties; import java.security.Security; import java.sql.*; import javax.net.ssl.*; public class...
View Articleold jdbc driver generates ORA-28040
I read on note 401934.1 that Oracle 10gR2 jdbc clients are still supported with Oracle 12c. I have an application using an oracle10gr2 jdbc, and connection to 12c generates ORA-28040. Connection to...
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