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3. Relational Algebra and SQL

3. Relational Algebra and SQL

3. Relational Algebra and SQL. Example: Let the following relations describe point sets: A(x, y), B(x, y), J(x, y) 2D points in the plane H(x, y, z), I(x, y, z) 3D points in space F(z) line on the z-axis

By mura
(63 views)

3. Relational Algebra and SQL

3. Relational Algebra and SQL

3. Relational Algebra and SQL. Example: Let the following relations describe point sets: A(x, y), B(x, y), J(x, y) 2D points in the plane H(x, y, z), I(x, y, z) 3D points in space F(z) line on the z-axis

By yeo-walsh
(76 views)


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Relational Algebra Operators

Relational Algebra Operators

Relational Algebra Operators. Relational Algebra and Relational Calculus

By joie (87 views)

W 1+ ∞ algebra as a symmetry behind AGT relation

W 1+ ∞ algebra as a symmetry behind AGT relation

W 1+ ∞ algebra as a symmetry behind AGT relation. High Energy Accelerator Research Organization (KEK) Institute of Particle and Nuclear Studies (IPNS) Shotaro Shiba 2011. 09. 17. Reference: S. Kanno, Y. Matsuo and S. S., Phys. Rev. D84 (2011) 026007. What is AGT relation ?.

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W 1+ ∞ algebra as a symmetry behind AGT relation

W 1+ ∞ algebra as a symmetry behind AGT relation

W 1+ ∞ algebra as a symmetry behind AGT relation. High Energy Accelerator Research Organization (KEK) Institute of Particle and Nuclear Studies (IPNS) Shotaro Shiba 2011/12/06 Reference: S. Kanno, Y. Matsuo and S. S., Phys. Rev. D84 (2011) 026007

By libby (79 views)

Implementation of other Relational Algebra Operators

Implementation of other Relational Algebra Operators

Implementation of other Relational Algebra Operators. Chapter 12. SELECT * FROM Reserves R WHERE R.rname < ‘C%’. Simple Selections. Of the form Size of result approximated as size of R * reduction factor ; we will consider how to estimate reduction factors later.

By winter-wise (111 views)

Graph Algebra II: Discrete-time Operators

Graph Algebra II: Discrete-time Operators

Graph Algebra II: Discrete-time Operators. Courtney Brown, Ph.D. Emory University. The Delay and Advance Operators. E -1 Input ( t ) = Input ( t -1) = Output ( t ) E 1 Input ( t ) = Input ( t +1) = Output ( t )

By willow-terry (70 views)

Algebra 1 Algebra 2

Algebra 1 Algebra 2

Algebra 1 Algebra 2. Mrs. Bashford . Who am I?.

By cece (91 views)

1. Extraction Operators

1. Extraction Operators

1. Extraction Operators. Projection Selection Unorder Join Cartesian Product Union Difference Intersection. set-like operators (commutativity). Projection [ type, name ]( e: expression )

By trudym (0 views)

1. Extraction Operators

1. Extraction Operators

1. Extraction Operators. Projection Selection Unorder Join Cartesian Product Union Difference Intersection. set-like operators (commutativity). Projection [ type, name ]( e: expression )

By luciano-bolton (58 views)

Algebra 1

Algebra 1

Algebra 1. Ch 8.1 – Multiplication Property of Exponents. Objective. Students will use the properties of exponents to multiply exponential expressions. Before we begin. In chapter 8 we will be looking at exponents and exponential functions…

By Samuel (184 views)