See Oracle Database Security Guide for more information about case-sensitive database passwords. To produce these reports, a database administrator uses a query language. By far the most widely used, and a prerequisite for any database administrator worth is SQL, the Structured Query Language.

Other operating systems allow the use of environment variables to specify the name and location of the password file. To prepare for password file authentication, you must create the password file, set the REMOTE_LOGIN_PASSWORDFILE initialization parameter, and grant privileges. This example connects remotely with the SYSDBA privilege and with external authentication to the database service designated by the net service name sales1. As the database administrator, you must plan the logical storage structure of the database, the overall database design, and a backup strategy for the database. The types of users and their roles and responsibilities depend on the database site. A small site can have one database administrator who administers the database for application developers and users.


You can learn more about SQL and databases by watching one of the best videos on the internet, with over 14 million views. You can also check out over 120 articles on SQL published on the freeCodeCamp publication. In SQL Server 2012, we have enhancement on checkpoint at database level TARGET T- RECOVERY-TIME option.

  • It is important for the DBCC CheckDB job to be run regularly for every database
    on the server.
  • Automatic seeding is a feature launched in SQL Server 2016 to initialize the secondary replica.
  • As a DBA, you often perform special operations such as shutting down or starting up a database.
  • An Oracle Database site can assign one or more application administrators to administer a particular application.
  • To connect to Oracle Database as a privileged user over a nonsecure connection, you must be authenticated by a password file.
  • This argument specifies if SYSKM user is password, externally, or globally authenticated.

Within larger organizations, DBA responsibilities typically are split into separate types of roles. Beyond general-purpose, the primary roles include system DBA, database architect, database analyst, application DBA, task-oriented DBA, performance analyst, data warehouse administrator and cloud DBA. Some small companies that only use externally hosted how to become a sql dba developer applications or don’t
have in-house IT may not have a DBA. Very often, when a company grows, it starts
implementing new applications with databases. Sometimes a person who is looking
after IT infrastructure (usually a sysadmin, sometimes a developer) may have some
knowledge about database administration and he/she provides basic database support.

SQL Server Database Administrator

After you have proved yourself, you can then be start to be trusted with the organization’s data. This argument sets the unique database name for a database password file being created on an Oracle ASM disk group. It identifies which database resource to update with the database password file location. If n, the default, create a password file in the operating system file system.

sql dba

Other product release levels may increment independent of the database server. This example connects locally with the SYSDBA privilege with operating system authentication. After the database installation, download and install Release Updates (Updates) and Release Update Revisions (Revisions) for your Oracle software on a regular basis. When the database is fully implemented, again back up the database. In addition to regularly scheduled backups, you should always back up your database immediately after implementing changes to the database structure. It is beyond the scope of this book to discuss relational and distributed database design.

Browse Database Administration Courses

This stored procedure will take an input value 1 for argument @restore_mode while running it. Use 1 to restore the log with STANDBY and use 0 to restore the log with NORECOVERY. We can use either the system dynamic management function sys.dm_io_virtual_file_stats or a
system function fn_virtualfilestats to get this information. We need to pass database and file id details about that
specific database file for which we are looking for IO statistics.

  • The method of creating the account of the database administrator is specific to the operating system.
  • This next query can be used to determine the most recent backups of a database.
  • (Optional) This argument specifies if SYS user is password, externally, or globally authenticated.
  • The new database password file replaces the existing database password file.
  • Maybe you’re interested in the challenge of managing a complex database system.
  • There are ongoing debates about whether certifications give you an advantage
    in your job search.