The RAC configuration is as follows:
Node1: IP address 192.168.60.132, Instance name: Rac1, Host Name: Rac1
Node2: IP address 192.168.60.144, Instance name: rac2, Host Name: rac2
The RAC service name is oratest.
My application server is Apache + Tomcat
The configuration process is as follows:
1. After searching, we found that there are many connection RAC methods and copied the following jdbcurl:
JDBC:
("Oracle.jdbc.driver.OracleDriver"); System.out.println ("Start trying to connect to the database!" "); //You must use the connection string configured in the "Tnsnames.ora" configuration file under the Oracle folder to connect to the database remotelyString url = "jdbc:oracle:" + "thin:@ (DESCRIPTION =" + "(address_list =" + "(ADDRESS = (PROTOCOL = TCP ) (HOST = xxx) (PORT = xxx)) "+" (Connect_data = "+"
In this article, we will learn how to use DataDirectSpyforJDBC for Oracle, Sybase, and SQLServer to track JDBC calls in IBM data replication product InfoSphereChangeDataCapture (CDC.
In this article, we will learn how to use DataDirect Spy for JDBC for Oracle, Sybase, and SQL Server to track
We are using the ojdbc14.jar driver to talk to a 10.1.0.4 version database. when calling GetObject () on a rowset, asking for a column that has database type Timestamp (9), I need CT to get a java. SQL. timestamp. instead, I get an oracle. SQL. timestamp, which cannot be casted to Java. SQL. timestamp.
Reading the Oracle forums and manuals, I get the impression that the default mapping shoshould be to the
the empty blob type object is empty_blob (). Then, you can use the SELECT command to query the previously inserted records and lock them. Then, you can change the empty object to the lob object to be inserted.Third, the modification methods are different.Update... Set... Command. For a field of the lob type, only select... The for update command is used to query and lock records before modification. There are also two ways to modify: one is to modify (overwrite) the original data and execute se
Due to Oracle licensing issues, MAVEN3 does not provide Oracle JDBC driver, in order to apply Oracle JDBC driver to the MAVEN project, it must be added to the local repository manually.
This document is for Oracle 11g. first, to g
Label:I. TEST environment preparationoracle:10gJDBC Driver: Classes12.jarCopy the Oracle installation directory (Oracle\product\10.2.0\db_1\jdbc\lib\classes12.jar) file to the Jmeter/lib directoryjmeter:jmeter-2.11Two. Design test plan and run1. Open JMeter, click Test PlanClick on the "Browse ..." button to add your JDBC
I. TEST environment preparationoracle:10gJDBC Driver: Classes12.jarCopy the Oracle installation directory (Oracle\product\10.2.0\db_1\jdbc\lib\classes12.jar) file to the Jmeter/lib directoryjmeter:jmeter-2.11Two. Design test plan and run1. Open JMeter, click Test PlanClick on the "Browse ..." button to add your JDBC dr
user, String password );
Note: Obtain the database connection according to the url. the user is the username used to log on to the database, and the password is the login password.
Database url Description: The url is written as: localhost can be replaced by the return address 127.0.0.1 pointing to the Local Machine
Common Database url:
Oracle -- jdbc: oracle:
1. Create a table
Create Table stud (Sid int,Sname varchar2 (50 ),Age number,Score number (4, 2 ))And insert some data (manually insert some data)2. Create a function
Create or replace function fun_getscores (V_age in stud. Age % Type)Return numberIsV_score number;BeginSelect sum (score) into v_score from stud where age> v_age;Return v_score;-- Exception HandlingExceptionWhen others thenDbms_output.put_line (sqlcode | sqlerrm );Return-1;End;3. Call in JDBC
How to Use JDBC to start Oracle auto trace, jdbcoracleSometimes we need to track and analyze the specific execution process of SQL statements, especially when the application performance is optimized. Two Oracle tools can help us analyze performance. One is SQL _TRACE and the other is SESSION_EVENT. SQL _TRACE traces the SQL Execution process, such as the resolut
After studying Oracle for a long time, I will now share with you the test on the paging efficiency of Oracle jdbc. I hope you will surely have a lot of gains after reading this article.
First, I wrote a simple jdbc paging test. In the case of 1 million records, I performed the absolute location operation on the databas
JDBC Reads 5 methods for sequence values of newly inserted Oracle databases
Oracle's sequence implementation is very flexible, so it also brings some usability problems, how to get to the new insert record sequence value generated by the other database is significantly different, this paper describes 5 ways to read the new inserted record sequence value.
Database Scripts for testing:
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