Glenn f knoll complete solutions manual to Radi(BookZZ org)

introduction to probability - solutions manual

introduction to probability - solutions manual
... different objects into the 1st box, and then n−a ways of putting a b b different objects into the 2nd and then one way to put the remaining objects into the 3rd box Thus the total number of ways ... 710 (a) The probability that the first player wins under either service convention is equal to the probability that if a coin has probability p of coming up heads, and the coin is tossed 2N + ... the expected winning per time to make one play the answer would still be -. 0141414 11 The roller has expected winning -. 0141; the pass bettor has expected winning -. 0136 13 45 15 E(X) = , so this...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 1 pot

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 1 pot
... Forms Semantic Modeling Part IV : Transaction Management 15 Recovery 16 Concurrency Copyright (c) 2003 C J Date page fm.3 Part V : Further Topics 17 18 19 20 21 22 23 24 Security Optimization Missing ... need to come back and deal with it properly before you cover Chapter 20 or Chapters 2 5-2 7 • Read Chapter 11 "once over lightly." • Read Chapters 12 and 14 carefully, but skip Chapter 13 (You could ... #300, Boston, Mass 0 211 6, care of Katherine Harutunian ( 617 /84 8-7 518 ) Thank you for your interest Healdsburg, California 2003 C J Date *** End of Preface *** Copyright (c) 2003 C J Date fm .12 page...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 2 potx

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 2 potx
... required stored record occurrences; next, construct the required conceptual record occurrences; finally, construct the Copyright (c) 20 03 C J Date page 2. 5 required external record occurrence At each ... Farrell', 20 00, 12 , 20 05 ) ; 1. 9 No answer provided Copyright (c) 20 03 C J Date 1. 12 page *** End of Chapter *** Copyright (c) 20 03 C J Date page 1. 13 Chapter D a t a b a s e S y s t e m A r c h i ... Steps in processing and executing a DML request (hence, an overview of the basic components of a DBMS) Copyright (c) 20 03 C J Date page 2 .1 • Basic client/server concepts (and note that client vs...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 3 pdf

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 3 pdf
... INTO :CJ _J# , :CJ_JN, :CJ_JC ; print CJ _J# , CJ_JN, CJ_JC ; END DO ; EXEC SQL CLOSE CJ ; END DO ; EXEC SQL CLOSE CS ; 4.6 The basic problem here is this: We need to "explode" the given part to n ... rows accessible via CS ; EXEC SQL FETCH CS INTO :CS_S#, :CS_SN, :CS_ST, :CS_SC ; print CS_S#, CS_SN, CS_ST, CS_SC ; EXEC SQL OPEN CJ ; DO for all J rows accessible via CJ ; EXEC SQL FETCH CJ INTO ... EXEC SQL DECLARE CJ CURSOR FOR SELECT J. J#, J. JNAME, J. CITY FROM J WHERE J. J# IN ( SELECT SPJ .J# FROM SPJ WHERE SPJ.S# = :CS_S# ) ORDER BY J# ; Note the nested subquery and the IN operator once...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 4 pptx

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 4 pptx
... THE_R ( C ) ) ; END OPERATOR ; OPERATOR CIRCUMFERENCE ( C CIRCLE ) RETURNS LENGTH ; RETURN ( 3 . 14 159 * DIAMETER ( C ) ) ; END OPERATOR ; OPERATOR AREA ( C CIRCLE ) RETURNS AREA ; RETURN ( 3 . 14 159 ... some of the implications: Can't specify "uniqueness" on columns containing such values Can't joins over such columns Can't GROUP BY on such columns And so on Forward reference to Chapter 6: The ... already covered) Read-only vs Update Operators The distinction between read-only and update operators──another logical difference!──becomes particularly important when we get to inheritance (Chapter...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 5 pptx

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 5 pptx
... warehouse in city CITY • J: Project J# is under way, is named JNAME, and is located in city CITY • SPJ: QTY Supplier S# supplies part P# to project J# in quantity ────────── * For some unspecified reason! ... operators that together satisfy certain Copyright (c) 2003 C J Date page 7 .1 axioms or laws, such as the laws of closure, commutativity, associativity, and so on (closure is particularly important, ... VAR J BASE RELATION { J# J# , JNAME NAME, CITY CHAR } Copyright (c) 2003 C J Date 6 .12 page PRIMARY KEY { J# } ; VAR SPJ BASE RELATION { S# S#, P# P#, J# J# , QTY QTY } PRIMARY KEY { S#, P#, J# ...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 6 pot

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 6 pot
... PCITY =/ CITY AS SCITY ) TIMES CITY AS PCITY ) TIMES CITY AS JCITY ) ) PCITY JCITY Copyright (c) 2003 C J Date SCITY ) TIMES PCITY ) TIMES JCITY ) ) { S#, P#, J# } page 7 .14 AND JCITY =/ SCITY ) ... RENAME CITY AS JCITY ) ) { SCITY, JCITY } 7.24 ( J JOIN SPJ JOIN S ) { P# } 7.25 ( ( ( J RENAME CITY AS JCITY ) JOIN SPJ JOIN ( S RENAME CITY AS SCITY ) ) WHERE JCITY =/ SCITY ) { J# } 7. 26 WITH ... 7 .13 J 7 .14 J WHERE CITY = 'London' 7 .15 ( SPJ WHERE J# = J# ( 'J1 ' ) ) { S# } 7 . 16 SPJ WHERE QTY ≥ QTY ( 300 ) AND QTY ≤ QTY ( 750 ) 7 .17 P { COLOR, CITY } 7 .18 ( S JOIN P JOIN J ) { S#, P#, J# ...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 7 doc

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 7 doc
... 300 ) AND SPJX.QTY ≤ QTY ( 75 0 ) 8 .13 . 17 { PX.COLOR, PX.CITY } Copyright (c) 2003 C J Date 8 .11 page 8 .13 .18 { SX.S#, PX.P#, JX .J# } WHERE SX.CITY = PX.CITY AND PX.CITY = JX.CITY 8 .13 .19 { SX.S#, ... 'London' AND PX.COLOR = COLOR ( 'Red' ) AND SPJX.S# = SX.S# AND SPJX.P# = PX.P# AND SPJX .J# = JX .J# ) Copyright (c) 2003 C J Date 8 .13 page 8 .13 . 41 JX .J# WHERE FORALL SPJY ( IF SPJY .J# = JX .J# THEN ... exercise in Chapter 8 .14 .13 SELECT * FROM J ; Or simply: TABLE J ; 8 .14 .14 SELECT J. * FROM J WHERE J. CITY = 'London' ; 8 .14 .15 SELECT DISTINCT SPJ.S# FROM SPJ WHERE SPJ .J# = J# ( 'J1 ') ; 8 .14 .16 ...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 8 pptx

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 8 pptx
... S.CITY, UPDATE on SPJ.S#, UPDATE on SPJ.QTY p UPDATE on SPJ.QTY q UPDATE on S.CITY 9.5 a Accepted b Rejected (candidate key uniqueness violation) c Rejected (violates RESTRICT specification) d Accepted ... FORALL JX EXISTS SX ( SX.CITY = JX.CITY ) ; i CONSTRAINT I FORALL JX EXISTS SX EXISTS SPJX ( SX.CITY = JX.CITY AND SX.S# = SPJX.S# AND SPJX .J# = JX .J# ) ; j CONSTRAINT J EXISTS PX ( PX.COLOR = COLOR ... S3 and all shipments for supplier S3 are deleted) e Rejected (violates RESTRICT specification) f Accepted (project J4 and all shipments for project J4 are deleted) g Accepted h Rejected (candidate...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 9 pot

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 9 pot
... P.CITY ; 10 .18 .3 CREATE VIEW SP AS SELECT SPJ.S#, SPJ.P#, SUM ( SPJ.QTY ) AS QTY FROM SPJ GROUP BY SPJ.S#, SPJ.P# ; 10 .18 .4 CREATE VIEW JC AS SELECT J. J#, J. CITY FROM J WHERE J. J# IN ( SELECT ... former──but we must be clear And then does "inherently many -to- one" mean, specifically, a foreign-key -to- matching-candidate-key join, or are there other cases that are inherently many -to- one? (If there ... first approach) is to different things depending on whether the join is one -to- one, many -to- one, or many -to- many In other words, the suggestion is that in certain circumstances we can "remove...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 10 pot

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 1 Part 10 pot
... two 11 .12 The first step is to rewrite the given set such that every FD has a singleton right side: AB C BC ACD BE CE CE → → → → → → → C A D B C A F Copyright (c) 2003 C J Date page 11 .7 11 11 CF ... B, C, D appears on the right side of any of the given FDs, it follows that {A,B ,C, D} is a candidate key Copyright (c) 2003 C J Date page 11 .9 *** End of Chapter 11 *** Copyright (c) 2003 C J Date ... distinct irreducible equivalents for the original set of FDs 11 .13 FDs: No answer provided Candidate keys: L, DPC, and DPT 11 .14 Abbreviating NAME, STREET, CITY, STATE, and ZIP* to N, R, C, T, and...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 2 Part 1 pps

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 2 Part 1 pps
... Copyright (c) 20 03 C J Date 12 . 12 page However, JOB2A is a projection of SALHIST2 (see below), and JOB2B is a projection of EMP1 (renamed as EMP2 below), so both of these relvars can be discarded ... again • JS JOIN SP yields the spurious tuple (S1,P2 ,J2 ); there's no (P2 ,J2 ) tuple in PJ; hence the final result is SPJ once again Copyright (c) 20 03 C J Date page 13 .4 The section also includes ... answer to Exercise 11 .15 that in fact the FD ZIP → { CITY, STATE } does not hold in practice As a subsidiary exercise, therefore, revise your answer to Exercise 12 . 7 to take this fact into account...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 2 Part 2 pot

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 2 Part 2 pot
... SPJ { S#, P# } JOIN SPJ { P#, J# } JOIN SPJ { J# , S# } ; Calculus version: CONSTRAINT SPJ_JD SPJ = { SPJX.S#, SPJY.P#, SPJZ .J# } WHERE SPJX.P# = SPJY.P# AND SPJY .J# = SPJZ .J# AND SPJZ.S# = SPJX.S# ... CTX (algebraic version): Copyright (c) 20 03 C J Date page 13.8 CONSTRAINT CTX_MVD CTX = CTX { COURSE, TEACHER } JOIN CTX { COURSE, TEXT } ; Calculus version: CONSTRAINT CTX_MVD CTX = { CTXX.COURSE, ... POINTLESS2 ) ) AS CTXD2 WHERE CTXD1.COURSE = CTXD2.COURSE AND CTXD1.TEACHER = CTXD2.TEACHER AND CTXD1.TEXT = CTXD2.TEXT ) AND ( NOT EXISTS ( SELECT DISTINCT COURSE, TEACHER, TEXT FROM ( ( SELECT DISTINCT...
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An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 2 Part 3 potx

An Introduction to Database Systems 8Ed - C J Date - Solutions Manual Episode 2 Part 3 potx
... three UPDATE operations U1, U2, U3, again not necessarily in that order.) Ri-Rj-Rk-Up-Uq-Ur Ri-Rj-Up-Rk-Uq-Ur Ri-Rj-Up-Uq-Rk-Ur Ri-Up-Rj-Rk-Uq-Ur Ri-Up-Rj-Uq-Rk-Ur : : : : : 3 3 * * * * * 2 1 * ... T1-T2-T3 T1-T3-T2 T2-T1-T3 T2-T3-T1 : : : : : A A A A A = = = = = 2 Copyright (c) 20 03 C J Date page 16.6 T3-T1-T2 T3-T2-T1 : A = : A = Of course, the six possible correct results aren't all distinct ... End of Introduction to Part V *** Copyright (c) 20 03 C J Date page V .2 Chapter 17 S e c u r i t y Principal Sections • • • • • Discretionary access control Mandatory access control Statistical DBs...
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