A database administrator (DBA) is responsible for the maintenance, performance, integrity and security of a database. Additional role requirements are likely to include planning, development and troubleshooting.
數據庫管理員（DBA）負責：維護，性能優化，整合，以及保證數據庫安全。另外，可能還有些其他的職責，例如：計劃，開發和故障解決。
The work of a database administrator (DBA) varies according to the nature of the employing organization and the level of responsibility associated with the post. The work may be pure maintenance or it may also involve specializing in database development. Typical responsibilities include some or all of the following:
DBA的工作有很多種，根據一般的公司組織中DBA的工作要求來看，DBA也許只做純維護或者包含一部分開發工作。下面列出的是典型的DBA職責：
Establishing the needs of users and monitoring user access and security;
接受用戶需求並且監控用戶訪問以及安全性。
Monitoring performance and managing parameters to provide fast query responses to front-end users;
監控性能和配置參數來保證更好的用戶查詢體驗
Mapping out the conceptual design for a planned database in outline;
規劃概念數據庫大綱
Take into account both, back-end organization of data and front-end accessibility for end users;
管理後臺組織和前臺用戶訪問
Refining the logical design so that it can be translated into a specific data model;
爲更好的轉化數據模型而重新設計邏輯模型
Further refining the physical design to meet system storage requirements;
爲滿足系統存儲要求而再次重新設計邏輯模型
Installing and testing new versions of the database management system (DBMS);
安裝和測試新版本的數據庫系統
Maintaining data standards, including adherence to the Data Protection Act;
維護數據標準，包括遵守數據保護法
Writing database documentation, including data standards, procedures and definitions for the data dictionary (metadata);
編寫數據庫文檔，包括數據標準，存儲過程以及數據字典（元數據）的定義
Controlling access permissions and privileges;
控制訪問權限
Developing, managing and testing backup and recovery plans;
開發，管理和測試備份恢復計劃
Ensuring that storage, archiving, backup and recovery procedures are functioning correctly;
保證存儲，歸檔，備份和恢復過程運行正常
Capacity planning;
存儲容量規劃
Working closely with IT project managers, database programmers and Web developers;
與IT項目經理，數據庫開發人員，Web開發人員協同合作
Communicating regularly with technical, applications and operational staff to ensure database integrity and security;
定時與技術，應用以及操作人員溝通以保證數據庫的完整性和安全性
Commissioning and installing new applications.
部署和安裝新的應用
Because of the increasing levels of hacking and the sensitive nature of data stored, security and recoverability or disaster recovery have become increasingly important aspects.
由於黑客技術的提高和存儲信息的敏感性，信息安全和可恢復性或者災難恢復已經成爲了一個非常重要的方面