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A database administrator (DBA) manages computer databases. [1] The role may include capacity planning , installation , configuration , database design , migration , performance monitoring, security , troubleshooting , as well as backup and data recovery .
Since databases hold valuable and mission-critical data, companies usually look for candidates with multiple years of experience. Database administration often requires DBAs to put in work during off-hours (for example, for planned after hours downtime, in the event of a database-related outage or if performance has been severely degraded).
Development of average annual wages 2000–2023 (USD PPP) [2] Country 2000 2010 2020 2023 Luxembourg * 67,932 75,124 78,977 85,526 Iceland * 61,066 58,131 75,022 ...
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SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...
In 2013, 50% of minimum wage workers were between the ages of 15 and 19; in 1997, it was 36%. 50.2% of workers in this age group were paid minimum wage in 2013, an increase from 31.5% in 1997. Statistics Canada notes that "youth, women and persons with a low level of education were the groups most likely to be paid at minimum wage." [2]
In Canada, the DBA is recognized as a terminal degree in business administration or management. [ 14 ] [ 15 ] [ 16 ] While DBA programs in Canada incorporate aspects of professional practice in addition to a full dissertation, they still qualify as full academic doctorates. [ 17 ]
12.2.0.1 March 2017 Native Sharding, Zero Data Loss Recovery Appliance, Exadata Cloud Service, Cloud at Customer Oracle Database 12c Release 1 12.1.0.1 July 2013 [21] 12.1.0.2 July 2014 Multitenant architecture, In-Memory Column Store, Native JSON, SQL Pattern Matching, Database Cloud Service