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HackerRank's programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python, SQL, and JavaScript) and span multiple computer science domains. [ 2 ] HackerRank categorizes most of their programming challenges into a number of core computer science domains, [ 3 ] including database management ...
Training: project aims to develop resources which can be used for training purposes in various media formats, languages and for various Apache and non-Apache target projects; Tuweni: set of libraries and other tools to aid development of blockchain and other decentralized software in Java and other JVM languages
Refactoring is usually motivated by noticing a code smell. [2] For example, the method at hand may be very long, or it may be a near duplicate of another nearby method. Once recognized, such problems can be addressed by refactoring the source code, or transforming it into a new form that behaves the same as before but that no longer "smells".
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 ...
Oracle Database (commonly referred to as Oracle DBMS, Oracle Autonomous Database, or simply as Oracle) is a proprietary multi-model [4] database management system produced and marketed by Oracle Corporation.
SQL relational database management system Gupta Technologies , LLC was a software development company based in Roseville , Placer County, California . It was later renamed to Centura Software in the late 1990s and then to Halo Technology Holdings, Inc in 2005.
CodeSignal was founded in 2015 by Tigran Sloyan, Aram Shatakhtsyan, and Felix Desroches. [1] Initially launched as CodeFights, it began as a platform for developers to improve their coding skills through competitive programming challenges, allowing users to compete in head-to-head timed coding battles.
NoSQL (originally referring to "non-SQL" or "non-relational") [1] is an approach to database design that focuses on providing a mechanism for storage and retrieval of data that is modeled in means other than the tabular relations used in relational databases. Instead of the typical tabular structure of a relational database, NoSQL databases ...