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SQL: Queries, Constraints, Triggers

SQL: Queries, Constraints, Triggers. Chapter 5. R1. Example Instances. S1. We will use these instances of the Sailors and Reserves relations in our examples. If the key for the Reserves relation contained only the attributes sid and bid , how would the semantics differ?. S2.

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8.1 Introduction

8.1 Introduction. The algebra provides a set of explicit operators that can be used to tell the system how to construct some desired relation from certain given relations.

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ICS 321 Fall 2010 The Database Language SQL ( i )

ICS 321 Fall 2010 The Database Language SQL ( i ). Asst. Prof. Lipyeow Lim Information &amp; Computer Science Department University of Hawaii at Manoa. Example Relations. R1. Sailors( sid : integer, sname : string, rating: integer, age: real) Boats( bid: integer,

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