Traditional relational database management systems sometimes use locking to manage concurrency, preventing clients from accessing data while another client is updating that data.

传统的关系数据库管理系统有时使用锁来管理并发性，从而防止其他客户机访问某个客户机正在更新的数据。

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After your client software has established a connection with the ClearQuest test management server, you can set up a user to connect to the actual database schema.

当您的客户端软件与ClearQuest测试管理服务器建立一个连接之后，您就能够建立一个到实际数据库schema的连接。

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Collect information about clients and relevant market, establish client file and information database and see to their maintenance and management.

收集客户及相关市场资料，建立、维护和管理客户档案和信息数据库。

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