This process aims to optimize healthcare data management, enhance the quality of care, and enable remote health monitoring. The ultimate goal is to establish a smart healthcare system that prioritizes public health and promotes sustainable development. In this context, the development of high-tech and multifunctional healthcare is an inevitable and crucial trend that aligns with the principles of security and efficiency in healthcare.

Securing digital data in the process of retrieving financial information can be seen as important requirement today. This paper focuses on developing a secure encryption (SE) scheme that supports efficient querying on encrypted data in financial databases.

Lecture "Administration and visualization: Chapter 1 - Introduction to data management and visualization" provides students with content about: Big data in 2008; Big data sources; Data is the new oil; Introduction to data management;... Please refer to the detailed content of the lecture!

After completing this appendix, you should be able to do the following: Log in to SQL*Plus Edit SQL commands Format output using SQL*Plus commands Interact with script files

Workshop Methodology Group-Oriented and Interactive Structure The workshop is structured to allow individuals to work in groups to perform database backup, restore, and recovery operations. Each group is encouraged to share its approach to resolving database failures with other groups in the class. Intensive Hands-On Diagnosis and Problem Resolution The intent is to provide you with as much hands-on experience as possible to diagnose and work through backup and recovery scenarios. Experience and knowledge gained from the course will play a major role toward successfully completing the objectives of each session....

Course Objectives This course is the first in a series of courses that cover the core database administrator tasks. The tasks covered in this course are: Outlining the Oracle architecture Planning and creating databases Managing the memory, process, physical, and logical structures Managing database users by controlling and monitoring their actions Using the Globalization Support features

After completing this lesson, you should be able to do the following: Describe different system architectures Describe the primary steps of OS tuning Identify similarities between OS and DB tuning Understand virtual memory and paging Explain the difference between a process and a thread

After completing this lesson, you should be able to do the following: Use the Oracle tuning methodology to diagnose and resolve performance problems Use Oracle tools to diagnose performance problems Understand the goals of the workshop

Cross Checks of RMAN Backups and Copies Performing a cross check provides you with a way to ensure that data about backup sets and image copies in the RMAN repository is synchronized with corresponding data on disk or in the media management catalog. You can use the LIST command to obtain a report of the backups and copies that you have made and then use the CROSSCHECK command to check that these files still exist. If RMAN cannot find a file, it updates the repository records to EXPIRED. You can determine which files are marked EXPIRED by issuing a LIST EXPIRED command....

After completing this appendix, you should be able to do the following: Describe the types of problems that are solved by using SQL to generate SQL Write a script that generates a script of DROP TABLE statements Write a script that generates a script of INSERT INTO statements

Auditing If an unauthorized user is deleting data, then the DBA might decide to audit all connections to the database and all successful and unsuccessful deletions from all tables in the database. The DBA can gather statistics about which tables are being updated, how many logical inputs/outputs (I/Os) are performed, and how many concurrent users connect at peak times.

Small shared pool Small database buffer cache Small redo log buffer cache Missing indexes Rollback segments and undo tablespace Sort area size incorrectly set Assorted

Redundant Arrays of Inexpensive Disks Technology (RAID)

In either case, the easiest way is to drop the entire tablespace that contains the datafile. The steps that are to be executed from within SQL*Plus are: 1. STARTUP MOUNT 2. For each deleted datafile, issue the command ALTER DATABASE DATAFILE ’full path of filename’ OFFLINE [DROP]; Note: You must use the DROP option if the database is in NOARCHIVELOG mode, because you cannot recover this file if you apply incomplete media recovery on it via the command ALTER DATABASE OPEN RESETLOGS. See the SQL Reference for details. 3. ALTER DATABASE OPEN; 4. DROP TABLESPACE INCLUDING CONTENTS [CASCADE CONSTRAINTS];...

Client-Server Application Connection Oracle Net enables a network connection between a client and an Oracle database server. Oracle Net is a software component that resides on both the client and on the Oracle database server. It is layered on top of the network protocol. When a connection is initiated from a client to the Oracle database server, data is passed down a stack on the client, over the network, and up a similar stack to the Oracle database server. The following explains the structure of each essential component of the Oracle Net stack communication architecture at a high-level: Client Application The client application such...

Restoration and Datafile Media Recovery Using RMAN RMAN automates the procedure for restoring files. When you issue the RESTORE command, RMAN uses a server session to restore the correct backups and copies. The RMAN repository is used to select the best available backup set or image copies to use in the restoration. By default, RMAN does not restore a file if the file is already in the correct place and its header contains the correct information. In releases before Oracle9i, the files were always restored. When you issue the RMAN RECOVER command, RMAN applies changes from online redo log files and archived...

Using Oracle Enterprise Manager You can use the Recovery Wizard to restore and recover your database. On the Range Selection page you must enter a date and time to restore to a previous point. You use Instance Management or the Console to open the database after the job has completed. You can view the status of the job by selecting the Active and History page tabs in the Console’s Job window.

Nơi lưu trữ tất cả thông tin được dùng để quản lý các đối tượng trong CSDL. ex: tables, views, Oracle users, functions… Được cấu trúc giống như 1 CSDL bình thường, gồm có tables và views.Read-Only.

Before a database is created, the UNIX environment must be configured and the Oracle9i server must have already been installed. Four environment variables must be set: ORACLE_HOME, ORACLE_SID, PATH, LD_LIBRARY_PATH. ORACLE_HOME is the full path to the top directory in which the Oracle9i Server is installed. The directory for ORACLE_HOME should be supplied by the person who installed the server, usually the UNIX administrator or the DBA. ORACLE_SID is a user-definable name assigned to an instance of a database. The ORACLE_SID (system identifier) is used by the operating system to distinguish different database instances running on the machine. PATH defines the directories the...

After completing this lesson, you should be able to do the following: Define the roles associated with the database tuning process Describe the dependencies between tuning in different development phases Describe service level agreements Identify tuning goals Identify common tuning problems Employ tuning activities during developmentand production Balance performance and safety trade-offs