CS 252 : HACD Fundamentals of Relational Databases
نویسندگان
چکیده
In parallel with Hugh Darwen, Alexandra Cristea (module organizer) introduces you to the “state of the art” of relational database support in the industry. This takes the form of SQL, the language that was dubbed “intergalactic dataspeak” by database guru Michael Stonebraker in the 1980s (since when its use and its number of implementations have grown enormously). You are strongly encouraged to compare and contrast the theory and language design principles taught by Hugh Darwen with the current widespread practice in the form of SQL and the particular implementation of SQL (Oracle) that you will be using.
منابع مشابه
Relative biological effectiveness (R.B.E.) of Cf-252 vs. acute Co-60 and low dose rate Cs-137 irradiation by spleen weight loss.
RBE/Weight loss/Spleen/Co-60/Cs-137/Cf-252 R.B.E. of Cf-252 on lymphoid tissue was assessed by radiation study of spleen weight loss following acute Co-60, and low dose rate (L.D.R.) Cs-137 and Cf-252 irradiations. Acute Co-60 and L.D.R. Cs-137 dose-response followed two component exponential curves with a 1.3-fold greater effect of L.D.R. Cs-137 vs. acute Co-60 on the first slope and 1.9-fold ...
متن کاملDual function of the hemagglutinin H5 fused to chicken CD154 in a potential strategy of DIVA against avian influenza disease: preliminary study
In this study we demonstrated that the vaccine candidate against avian influenza virus H5N1 based on the hemagglutinin H5 (HA) fused to the chicken CD154 (HACD) can also be used for differentiating infected from vaccinated animals (DIVA). As the strategy of DIVA requires at least two proteins, we obtained a variant of the nucleoprotein (NP49-375) in E. coli. After its purification by IMAC, the ...
متن کاملRelational Databases Query Optimization using Hybrid Evolutionary Algorithm
Optimizing the database queries is one of hard research problems. Exhaustive search techniques like dynamic programming is suitable for queries with a few relations, but by increasing the number of relations in query, much use of memory and processing is needed, and the use of these methods is not suitable, so we have to use random and evolutionary methods. The use of evolutionary methods, beca...
متن کاملar X iv : 1 41 1 . 45 16 v 1 [ cs . A I ] 1 7 N ov 2 01 4 Verification of Relational Multiagent Systems with Data Types ( Extended
We study the extension of relational multiagent systems (RMASs), where agents manipulate full-fledged relational databases, with data types and facets equipped with domainspecific, rigid relations (such as total orders). Specifically, we focus on design-time verification of RMASs against rich firstorder temporal properties expressed in a variant of first-order μ-calculus with quantification acr...
متن کاملInconsistent Databases
SCIENTIFIC FUNDAMENTALS A database can be seen as a model, i.e. as a simplified, abstract description, of an external reality. In the case of relational databases, one starts by choosing certain predicates of a prescribed arity. The schema of the database consists of this set of predicates, possibly attributes, which can be seen as names for the arguments of the predicates, together with an ind...
متن کامل