oracle database connection in java

Today, using the laptop's Plsql developer to connect to Oracle on another desktop in the LAN, the login process is slow, and then reports Ora-12170:tns occurred: Connection timeout Such a mistake, Baidu a long time to find a solution. It is said that the window firewall does not allow Oracle to communicate with the outside, so you need to add an exception or e

the case, it will only be a big trick:Create a new BAT file below the Plsql Developer directory, replace its shortcut, and start Plsql Developer:File contents:@echo offset path=D:\app\NiuNiu\product\instantclient_11_2set ORACLE_HOME=D:\app\NiuNiu\product\instantclient_11_2set TNS_ADMIN=D:\app\NiuNiu\product\instantclient_11_2set NLS_LANG=AMERICAN_AMERICA.ZHS16GBKstart plsqldev.exeYou can start Plsql by double-clicking the script file. Copyright NOTICE: This article for Bo Master original articl

Module SQL Text + 15% Aqswdefrgthy JDBC Thin Client select sysdate from dual;But in MOS article: Troubleshooting: Shared pool optimization and library Cache latch conflict optimization (DOC ID 1523934.1) have descriptions such as the following:Example 2: The following statement does not use a bound variable but is not considered to be literal SQL. Because this statement can be run multiple times for sharing. SELECT sysdate from dual;My question is: Since said c

. Specific steps and code Static final String jdbc_driver = "Com.mysql.cj.jdbc.Driver"; Static final String Db_url = "Jdbc:mysql://localhost:3306/jdbc?usessl=false"; Static final String USER = "root"; Static final String PASSWORD = "123456"; public static void Hello () throws classnotfoundexception {Connection conn = null; Statement stmt = null; ResultSet rs = null; 1. Load driver Class.forName (jdbc_driver); 2. Establish

maintenance, release the database connection pool object and release all connections ).Configuration steps:1. Add the following content to the Name: It will be used to call the resource later.Type: the class in the java extension package used to connect to the database.MaxActive: Maximum number of connectionsMaxIdle: the maximum number of connections when idle

Today, a table is designed in powerdesigner15, and you want to connect to Oracle through powerdesigner, and then generate the table directly in the database. Set the connection options according to the methods provided on the Internet, and click the test button. The connection is always unsuccessful. The error message

################## Database Connection Configuration ###################Oracle#hibernate. Connection.driverclass=oracle.jdbc.driver.oracledriver#hibernate. Dialect=org.hibernate.dialect.oracle9dialect#hibernate. Connection.url=jdbc:oracle:thin:@192.168.1.30:1521:other#hibernate. CONNECTION.USERNAME=EKP#hibernate. CONNECTION.PASSWORD=EKP#SQL Server#hibernate. Conn

1 hibernate connection ORACLE: DriveProgramPut class12.jar under Lib. 2. hibernate connections 3. Restore database tablesGenerally, @ XXXXX. SQL is enough. Create a schema first. Here I understand that the solution in Oracle is actually equivalent to "Database" in oth

When using PLSQL developer, the ORA-12154:TNS: Unable to parse the specified connection identifier "a solution to the problem plsqldeveloper version 7.1 today suddenly needs to change a project a long time ago, that project uses Oracle9iStart PLSQL developer, prompt to enter the user name and password and database, enter, press enter, prompt: ORA-12154:TNS: the specified

Php connection to access Oracle is using the oci function, the following is the finishing documentation 1. install Apache and php package yuminstall-yhttpdphp * 2. download the Oracle component oracle-instantclient-basic-10.2.0.4-1.i386.rpmoracle-instantclient-sqlplus-10. The oci function is used to connect to

The statements are the same as those for connecting to access and SQL server. You can change them a little bit: Dim objconn, mydsnIf not isobject (objconn) thenSet objconn = server. Createobject ("ADODB. Connection ")Mydsn = "provider = oraoledb. Oracle; Data Source = oracle_shanghai; user id = Scott; Password = tiger; persist Security info = true"Objconn. Open mydsnEnd if ============ ''

. Net connection to oracle Database --- ShinepansFAQ: 1. the reference solution is missing. Add reference: using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Data.OracleClient;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.Data.Common;using Oracle.DataAccess; 2

1, access to the operating system management tools2. Select the ODBC data source "32-bit or 64-bit"3, the list is the current database existing data source, right click the Add button, add the appropriate data source4. Select the ODBC driver for the connection database in the list "Here I want to connect MySQL, so to choose MySQL ODBC Driver", double-click Driver

Reference URL: http://jingyan.baidu.com/article/0320e2c1d4dd0b1b87507b38.html Now that you're linking to the Oracle database, the first step is to open our Oracle database (log in with Scoot users after logging in to Oracle) 2The second step is to open our MyEclipse de

Ado. net Connect to SQL ServerThe SQL Server. NET Framework Data Provider supports connection string formats similar to OLE DB (ADO) connection string formats.Using (sqlconnection connection = new sqlconnection (connectionstring )){Connection. open ();// Do work here.} Connect to the ole db data source (ACCESS)Ole db.

Tags: style blog http io ar color using SP forOriginal: Navicat connection Oracle database Ora-28547:connection to server failed, probable Oracle Net Admin Error ResolutionThe navicat is connected to an Oracle server through an

Tutorial 18: Table connection Query The purpose of this experiment is to master basic joint queries. Table join To obtain information from multiple tables, we can join the tables for query under certain conditions. Related reading: Basic query statement for Oracle 10 Gb database-aboveBasic query statement for Oracle 10

The following function functions for database operations are also provided in LoadRunner, and these database function functions are available only for Web services protocols. Lr_db_connect connecting the database Lr_db_disconnect disconnecting the database lr_db_executesqlstatement executing SQL statements lr_db_datase