SQL Server到Oracle连接服务器
本文以SQL Server 2k为例说明SQL Server到Oracle连接服务器的具体实现过程。
1.要求pc机上安装oralce客户端软件和sqlserver2000软件。
2.客户端的配置tnsnames.ora文件,配置所要连接的数据库服务器(windows,unix等平台均可以)
eg:tnsnames.ora
......
TEST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.11.90)(PORT = 1521))
)
(CONNECT_DATA =
(sid = blue)
(SERVER = DEDICATED)
)
)
......
3.配置windows的ODBC数据源:
开始菜单—》设置—》管理工具—》数据源(ODBC)—》进入配置用户DSN或者系统DSN均可以:添加—》选择Microsoft ODBC for oracle—》自定义数据源名称(最好跟tns中连接串同名!)—》服务器名称(必填!填写tns文件中的连接串名称)—》完成。
4.配置sqlserver2000中的连接服务器:
企业管理器—》安全性—》连接服务器—》右键新建连接服务器—》定义连接名称; 选其他数据源; 指定程序名称为:Microsoft OLE DB Provider for Oracle; 产品名称可不填; 数据源指定刚才ODBC中定义好的数据源名称; 提供程序字符串按以下格式填写:User ID=username;Password=userpasswd(或者按如下格式:UID=username;PWD=userpasswd),这里的用户名和密码对应所要连接的oracle数据库中的用户名和密码 —》 安全性标签页里:设置用此安全上下文进行,并录入oracle的数据库用户名和密码—》服务器选项标签页可默认—》确定。
5.准备工作全部完成啦!在sqlserver企业管理器—》安全性—》连接服务器打开刚建好的连接服务器—》点击表,即可在右边窗口看到该oracle数据库用户拥有的的所有表名,但在这里还并不能查看表的记录,这个需要在sqserver的查询分析器中用具体sql实现!访问表时,使用格式为: [连接服务器名]..[ORACLE用户].[表名]。更详细具体的使用这里不再赘述。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











The method to solve the Oracle cursor closure problem includes: explicitly closing the cursor using the CLOSE statement. Declare the cursor in the FOR UPDATE clause so that it automatically closes after the scope is ended. Declare the cursor in the USING clause so that it automatically closes when the associated PL/SQL variable is closed. Use exception handling to ensure that the cursor is closed in any exception situation. Use the connection pool to automatically close the cursor. Disable automatic submission and delay cursor closing.

In Oracle, the FOR LOOP loop can create cursors dynamically. The steps are: 1. Define the cursor type; 2. Create the loop; 3. Create the cursor dynamically; 4. Execute the cursor; 5. Close the cursor. Example: A cursor can be created cycle-by-circuit to display the names and salaries of the top 10 employees.

Oracle views can be exported through the EXP utility: Log in to the Oracle database. Start the EXP utility, specifying the view name and export directory. Enter export parameters, including target mode, file format, and tablespace. Start exporting. Verify the export using the impdp utility.

When Oracle log files are full, the following solutions can be adopted: 1) Clean old log files; 2) Increase the log file size; 3) Increase the log file group; 4) Set up automatic log management; 5) Reinitialize the database. Before implementing any solution, it is recommended to back up the database to prevent data loss.

Building a Hadoop Distributed File System (HDFS) on a CentOS system requires multiple steps. This article provides a brief configuration guide. 1. Prepare to install JDK in the early stage: Install JavaDevelopmentKit (JDK) on all nodes, and the version must be compatible with Hadoop. The installation package can be downloaded from the Oracle official website. Environment variable configuration: Edit /etc/profile file, set Java and Hadoop environment variables, so that the system can find the installation path of JDK and Hadoop. 2. Security configuration: SSH password-free login to generate SSH key: Use the ssh-keygen command on each node

Oracle is not only a database company, but also a leader in cloud computing and ERP systems. 1. Oracle provides comprehensive solutions from database to cloud services and ERP systems. 2. OracleCloud challenges AWS and Azure, providing IaaS, PaaS and SaaS services. 3. Oracle's ERP systems such as E-BusinessSuite and FusionApplications help enterprises optimize operations.

To stop an Oracle database, perform the following steps: 1. Connect to the database; 2. Shutdown immediately; 3. Shutdown abort completely.

Configuring WebLogic database connection on a CentOS system requires the following steps: JDK installation and environment configuration: Make sure that the server has installed a JDK that is compatible with the WebLogic version (for example, WebLogic14.1.1 usually requires JDK8). Correctly set JAVA_HOME, CLASSPATH and PATH environment variables. WebLogic installation and decompression: Download the WebLogic installation package for CentOS system from the official Oracle website and unzip it to the specified directory. WebLogic user and directory creation: Create a dedicated WebLogic user account and set a security password
