Joe Celko''''''''s SQL Puzzles and Answers, Second Edition, Second Edition pot

... Multidimensional and Metric Data Structures Hanan Samet Joe Celko’s SQL for Smarties: Advanced SQL Programming, Third Edition Joe Celko Moving Objects Databases Ralf Hartmut Güting and Markus Schneider Joe ... Schneider Joe Celko’s SQL Programming Style Joe Celko Data Mining, Second Edition: Concepts and Techniques Ian Witten and Eibe Frank Fuzzy Modeling and Ge...

Ngày tải lên: 22/03/2014, 12:20

... structures. INTRODUCTION TO THE FOURTH EDITION xxi INTRODUCTION TO THE FOURTH EDITION This book, like the first, second, and third editions before it, is for the working SQL programmer who wants to pick ... expressions, and derived Joe Celko’s SQL for Smarties. DOI: 10.1016/B978-0-12-382022-8.00003-X Copyright © 2011 by Elsevier Inc. All rights reserved. Chapter 4 LOCATING D...

Ngày tải lên: 31/05/2014, 01:20

... Multidimensional and Metric Data Structures Hanan Samet Joe Celko’s SQL for Smarties: Advanced SQL Programming, Third Edition Joe Celko Moving Objects Databases Ralf Hartmut Güting and Markus Schneider Joe ... Schneider Joe Celko’s SQL Programming Style Joe Celko Data Mining, Second Edition: Concepts and Techniques Ian Witten and Eibe Frank Fuzzy Modeling and Ge...

Ngày tải lên: 21/01/2014, 08:20

... exploits the NOT NULL and CHECK() constraints of the table definition and does not require any join. This illustrates the point that SQL is a combination of both DDL and DML. Please purchase ... string constant instead. The second SELECT statement picks the course_nbr/student_name combinations with two and only two teachers. The MIN() and MAX() functions work and order...

Ngày tải lên: 21/01/2014, 08:20

... MagazineSales(stand_name, title, net_sold_qty) AS SELECT Sales.stand_name, Titles.title, net_sold_qty FROM Titles, Sales, Newsstands WHERE Sales.stand_nbr = Newsstands.stand_nbr AND Titles.product_id ... correlation per skill CandidateSkills AS C2, CandidateSkills AS C3 WHERE C1.candidate_id = C2.candidate_id AND C1.candidate_id = C3.candidate_id AND job order expression crea...

Ngày tải lên: 21/01/2014, 08:20

... common check amount and the number of occurrences on the payroll. How would you write this query in SQL- 89? In SQL- 92? In SQL- 99? Answer #1 SQL- 89 lacks the orthogonality that SQL- 92 has, so the ... (0, 0, 0, 0, 0, 0, 0, 0, 0, f10)) AND (f1 + f2 + f10) > 0; In SQL- 92, you can use row and table constructors in comparison predicates. The IN predicate expands into a s...

Ngày tải lên: 21/01/2014, 08:20

... (&apos ;Joe& apos;, 'A', 3), (&apos ;Joe& apos;, 'A', 2), (&apos ;Joe& apos;, 'A', 3), (&apos ;Joe& apos;, 'A', 3), (&apos ;Joe& apos;, 'B', 3), (&apos ;Joe& apos;, ... policies 1, 2, and 3, but not 4. Policy 3 should be ranked the highest, because it matches the most qualifications and returned as the answer. Policy 1 should be second...

Ngày tải lên: 21/01/2014, 08:20

... first or second place, and showed means the horse was in first, second, or third place. Your bookie comes to you one day and wants to know how many times each horse was in the money. What SQL query ... the first seven batches, the second seven batches, and the last seven batches. Write a query that will show, by work production center and date, the batch groups and the ave...

Ngày tải lên: 21/01/2014, 08:20

... WATCOM (and other versions of SQL back then) had a proprietary NUMBERS(*) function that begins at 1 and returns an incremented value for each row that calls it. The current SQL Standard now ... T2.end_date AND NOT EXISTS (SELECT * FROM Timesheets AS T3, Timesheets AS T4 WHERE T3.end_date < T4.start_date AND T3.start_date >= T1.start_date AND T3.end_date <= T2....

Ngày tải lên: 21/01/2014, 08:20

... (W2.receipt_nbr, W3.receipt_nbr) AND W2.receipt_nbr NOT IN (W1.receipt_nbr, W3.receipt_nbr) AND W1.qty_on_hand >= W2.qty_on_hand AND W2.qty_on_hand >= W3.qty_on_hand; Now you need a procedure ... FROM Husbands AS W, Husbands AS X, Wives AS Y, Wives AS Z WHERE W.man = X.man AND W.ranking > X.ranking AND X.woman = Y.woman AND Y.woman = Z.woman AND Y.ranking &g...

Ngày tải lên: 26/01/2014, 08:20