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What creates and maintains the data dictionary manages security of the database monitors the perfomance of the database and checks backup and recovery procedures?
database user
Which are the procedures of database?
Procedures in a database are stored code segments, which can be executed. This is a good way of holding any business logic in a single place. A procedure could be very simple and return the value of the square of two number, or be very complicated, and perform a lot of data validation before inserting data into a table or updating a table for example.
What is DBMS procedures?
DBMS procedures, or Database Management System procedures, refer to the set of predefined operations or functions that manage and manipulate data within a database. These procedures can include tasks such as data retrieval, insertion, updating, and deletion, as well as maintenance activities like backup and recovery. They are often implemented as stored procedures in the database, allowing for efficient execution of complex operations and ensuring data integrity. Additionally, DBMS procedures help standardize database interactions, making it easier to maintain and manage the data.
What are the components of dba?
The components of a Database Administrator (DBA) role typically include managing databases, ensuring data security and integrity, optimizing database performance, implementing backup and recovery procedures, and overseeing database design and structure. DBAs are responsible for troubleshooting issues, monitoring database activity, and implementing database upgrades or migrations. They may also work with developers, analysts, and other stakeholders to ensure that database systems meet business requirements.
What is oracle DBA?
An Oracle database administrator (DBA) is a professional responsible for the design, implementation, maintenance, and performance of an Oracle database system. They handle tasks such as user management, security, backup and recovery, and tuning the database for optimal performance. Additionally, they play a crucial role in troubleshooting and resolving any issues that may arise in the database environment.
What are the database management activities?
Make sure the database does not run out of space. Nowdays no manual intervention is required in products from major database vendors like Oracle. Make sure the database jobs are running with no issues. Configure, Schedule backups Make sure backup and recovery procedures work as configured. Database security is another task.
How does database recovery work?
Database recovery tries to recover data from the hard disk or storage in case of any damage in the storage. However, 100% data recovery is always a tough task
What is recovery model?
SQL Server backup and restore operations occur within the context of the recovery model of the database. Recovery models are designed to control transaction log maintenance. A recovery model is a database property that controls how transactions are logged, whether the transaction log requires (and allows) backing up, and what kinds of restore operations are available. Three recovery models exist: simple, full, and bulk-logged. Typically, a database uses the full recovery model or simple recovery model. A database can be switched to another recovery model at any time.
How do backup and recovery procedures help achieve RTO?
By documenting and implementing backup and recovery procedures, the process for recovery is much more efficient, helping with the time portion of RTO. By having effective backup and recovery procedures you should have the necessary resources to restore systems from backups and a repeatable process that is known to succeed in achieving RTO.
Frequently asked questions on database recovery?
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What is database checkpoint?
A database checkpoint is where all committed transactions are written to the redo/audit logs. The database administrator determines the frequency of the checkpoints based on volume of transactions. Too frequent checkpoints affect performance. Checkpoints that are too long in between will cause a longer mean time to recovery because more logs will have to be applied.
How can a database be more effective?
A database can be more effective by optimizing queries to improve performance, properly indexing tables to speed up data retrieval, and maintaining data integrity through proper normalization and validation techniques. Regular maintenance such as backup and recovery processes can also help ensure the database runs smoothly and efficiently.
