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Certifications are also defined by job role on the Oracle Certification website. The Oracle Certified Junior Associate (OJA) credential is a novice-level certification focused on students in secondary schools, two-year colleges and four year colleges and universities and faculty members who teach foundational Java and computer science classes. [1]
Oracle Corporation is an American multinational computer technology company headquartered in Austin, Texas. [5] Co-founded in 1977 by Larry Ellison, who remains executive chairman, Oracle was the third-largest software company in the world in 2020 by revenue and market capitalization. [6]
Oracle acquired Innobase, supplier of the InnoDB codebase to MySQL, in part to compete better against open source alternatives, and acquired Sun Microsystems, owner of MySQL, in 2010. Database products licensed as open-source are, by the legal terms of the Open Source Definition , free to distribute and free of royalty or other licensing fees.
Microsoft SQL Server (Structured Query Language) is a proprietary relational database management system developed by Microsoft.As a database server, it is a software product with the primary function of storing and retrieving data as requested by other software applications—which may run either on the same computer or on another computer across a network (including the Internet).
Microsoft SQL Server Express LocalDB is a version of Microsoft SQL Server Express, on-demand managed instance of the SQL Server engine. It is targeted to developers, and has the following restrictions: up to 10 GB database size and only local connections (network connections are not supported).
Security+ is an entry-level vendor-neutral security certification that builds off of the network security knowledge covered by the Network+ certification. [32] It expires in 3 years. [20] Certification prior to January 1, 2011, is considered good-for-life (GFL) and does not expire. [21]
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 ...
The version of SQL Server Management Studio included with SQL Server 2008 supports IntelliSense for SQL queries against a SQL Server 2008 Database Engine. [25] SQL Server 2008 also makes the databases available via Windows PowerShell providers and management functionality available as Cmdlets , so that the server and all the running instances ...
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