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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 .
The salary distribution is right-skewed, therefore more than 50% of people earn less than the average net salary. These figures have been shrunk after the application of the income tax . In certain countries, actual incomes may exceed those listed in the table due to the existence of grey economies .
The degree to which the administration of a database is automated dictates the skills and personnel required to manage databases. On one end of the spectrum, a system with minimal automation will require significant experienced resources to manage; perhaps 5-10 databases per DBA.
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 ...
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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Note (10): Informix DATETIME type has adjustable range from YEAR only through 1/10000th second. DATETIME date range is 0001-01-01 00:00:00.00000 through 9999-12-31 23:59:59.99999. Note (11): Since version 12c. Earlier versions support up to 4000 B. Note (12): The 0.5 YB limit refers to the storage limit of a single Informix server instance ...
The minimum wage was lifted to $12.75 on April 1, 2022, and there was an additional increase of $1.00 on October 1, 2022. [13] Newfoundland and Labrador: 15.60 April 1, 2024 Expected indexation based on formula: $16.00 on April 1, 2025 Each April 1 (resumed in 2024), based on Canada CPI for the previous calendar year. [14]