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Import java. SQL .*;
Several issues to be aware of when Jbuilder correctly connects oracle ArrayiThe classes12.jar file should be used as the jdbc driver for oracle8 and later versions;Correctly set the classpath for windows and enterprise setup and configure libraries in jbuilder, and add the casses12.jar path to the
= rolestat.exe cutequery ();If (equiprs. getfetchsize () Equiprs. setfetchsize (20 );
However, if we call the setfetchsize () function of statement to set fetchsize to the expected value in advance, this will not cause the problem:
Rolestat. setfetchsize (20); // The setfetchsize () method of statement will not cause problems.Resultset equiprs = rolestat.exe cutequery ();
Therefore, we suspect that this is a bug implemented by Oracle
I encountered a problem where I used ojdbc14.jar (which version I don't remember) to insert 0.1 million records in batches. Actually, I only inserted more than 30 thousand records, but I lost others. After I changed to ojdbc6.jar,
I encountered a problem where I used ojdbc14.jar (which version I don't remember) to insert 0.1 million records in batches. Actually,
1. Grant scott user connection permissions: Grant connect to scott;
2. Create a java project in Myeclipse to import the jdbc package (classes12.jar ):
Right-click the project bulid path-> add external archives and select classes12.jar.
3. Create a java file, lianxi01.java
ImportJava. SQL. Connection;
ImportJava. SQL. ResultSet;
ImportJava. SQL. SQLException;
Imp
The Blob field in Oracle is special. It has much better performance than the long field and can be used to save binary data such as sample slices.
Writing BLOB fields is very different from writing other types of fields. Because blob itself has a cursor, you must use cursor to operate blob. Therefore, before writing blob, you must obtain the cursor to write data. How can you obtain the Blob cursor?
This requires you to insert an empty blob first, whi
Differences between Classes12.jar,ojdbc14.jar,ojdbc5.jar and Ojdbc6.jar, the difference betweenZhao LeiBlog: http://elf8848.iteye.comSource: http://elf8848.iteye.com/blog/811037When using the Oracle JDBC driver, are there some pro
The Blob field in Oracle is special. It has much better performance than the long field and can be used to save binary data such as sample slices.
Writing BLOB fields is very different from writing other types of fields. Because blob itself has a cursor, you must use cursor to operate blob. Therefore, before writing blob, you must obtain the cursor to write data. How can you obtain the Blob cursor?
This requires you to insert an empty blob first, whic
In WL_HOME/wl_server10.3/server/lib, find classes12.zip (jdbc driver of earlier versions) ojdbc. jar or ojdbc6.jar.
View the META-INF/MANIFEST. MF in the package with the decompression tool
$ More MANIFEST. MF
Manifest-Version: 1.0
Implementation-Vendor: Oracle Corporation
Implementation-Title: ojdbc6.
Differences between Classes12.jar,ojdbc14.jar,ojdbc5.jar and Ojdbc6.jar, the difference betweenWhen using the Oracle JDBC driver, are there some problems that you can solve by replacing different versions of the
connectionDisadvantage: Load different database drivers based on different databases.
1995 sun javaone Conference1. the pointer is developed in C language.2. ODBC configurations are complex and not suitable for Java features;3, JDBC-ODBC bridge drive most of only suitable for testing, and cannot carry out product operations.
2. Use of JDBCUsing java. SQL: it is mainly used to connect to the database;Javax. SQL: advanced database operations for Java a
The connection pool for accessing the Oracle database in WebLogic can be configured in three JDBC methods.
Set up the connection pool in the Weblogic console and modify the startweblogic. CMD file.
The connection pool for accessing the Oracle database in WebLogic can be configured in three JDBC modes.
Set up the conne
Note:This article is excerpted from JDBC Transaction to answer questions and answers from many friends. If you believe that the content of this article has violated your rights and interests, contact the Administrator to modify it.
Several issues to be aware of when Jbuilder correctly connects to oracle 9i
The classes12.jar file should be used as the
Detailed description of Oracle database instance operations through JDBC
This example uses jdbc2.0 and Oracle9i databases. The database is located on the local machine. Use the Scott mode that comes with the database.
With detailed comments, I don't think I need to talk about it more.
Import java. SQL .*;Import oracle. SQL .*;Import
Note:This article is excerpted from JDBC Transaction to answer questions and answers from many friends. If you believe that the content of this article has violated your rights and interests, contact the Administrator to modify it.
Several issues to be aware of when Jbuilder correctly connects to oracle 9i
The classes12.jar file should be used as the
Keywords: Open-Source Performance Testing ToolJmeter Oracle
JmeterThe Manual describes how to accessMySQLBut does not explain how to accessOracle. ForJavaApplication development experience andOracleIf you are not familiar with it, refer to this article.ArticleEasy and quick ConfigurationJmeterInJDBCConnection andJDBC request.
Steps:
Create A thread group ;
added JDBC connectio
The Blob field in Oracle is special. It has much better performance than the long field and can be used to save binary data such as sample slices.Writing Blob fields is very different from writing other types of fields. Because Blob itself has a cursor, you must use cursor to operate blob. Therefore, before writing Blob, you must obtain the cursor to write data. How can you obtain the Blob cursor?This requires you to insert an empty blob first, which
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