RELATIONAL ALGEBRA IN SQL
Journal Title: INTERNATIONAL JOURNAL OF MATHEMATICS TRENDS AND TECHNOLOGY - Year 2013, Vol 4, Issue 2
Abstract
Relational Algebra is that branch of algebra which deals about set operations on a given relation such as UNION,INTERSECTION,DIFFERENCE,CARTESIAN PRODUCT, PROJECTION ,SELECTION. In this paper we shall discuss these operations in terms of SQL(STRUCTURED QUERY LANGUAGE).
Authors and Affiliations
Suresh Kumar, 2 R. B. S. Yadav
Fourier transf orm and Plancherel Theorem f or Nilpotent Lie Group
As will known the connected and simply connected nilpotent Lie group N has an important role in quantum mechanics. In this paper we show how the Fourier transform on the n dimensional vector Lie group n R can be genera...
Anti Q-Fuzzy M-Subgroups Of Near Rings
In this paper, we introduce the notion of Q-fuzzification of M-subgroups in a near-ring and investigate some related properties. Characterization of Anti Q-fuzzy M- subgroups with respect to s-norm is given.
Fuzzy Transportation Problem Using Improved Fuzzy Russells Method
In this paper, we investigate the new idea of optimal solution of squared triangular and trapezoidal fuzzy number via fuzzy russal’s method. This method is a modification of yager’s ranking method. A new algorithm is inv...
Simulation Study for Some Estimators of Exponential Distribution
In this study we have some estimators for exponential distribution in simulation study. These estimators were classical estimator like maximum likelihood estimator (MLE) and robust estimators that is called MAD/MED robus...
Analysis of Queuing Model for Machine Repairing System with Bernoulli Vacation Schedule
In this paper, we consider a queueing model for machine repairing system with Bernoulli vacation schedule. The failure times, repair times and vacation times are all assumed to be exponentially distributed. In congestion...