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Author: Jeffry A. Borror
Publisher:
ISBN: 9781434829016
Category : Programming languages (Electronic computers)
Languages : en
Pages : 478
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Book Description
Learn the powerful q programming language used in the kdb+ database system developed by Kx Systems, Inc. Based on courses taught by the author at major financial institutions, this tutorial is a tested way to learn the features of q. It assumes no specific programming knowledge and presents this complex language with understandable explanations and many hands-on examples. You will be able to read and write q programs when you finish this book.The q language is both a functional programming language and a vector programming language derived from APL. It is particularly well suited to processing very large time series data.Topics covered include: data types; operations and functions; the basic data structures, lists and dictionaries; tables and keyed tables; joins and queries; commands. There is a special section demonstrating typical queries against trade data. There is also a complete reference to all the built-in functions.
Author: Jeffry A. Borror
Publisher:
ISBN: 9781434829016
Category : Programming languages (Electronic computers)
Languages : en
Pages : 478
Get Book Here
Book Description
Learn the powerful q programming language used in the kdb+ database system developed by Kx Systems, Inc. Based on courses taught by the author at major financial institutions, this tutorial is a tested way to learn the features of q. It assumes no specific programming knowledge and presents this complex language with understandable explanations and many hands-on examples. You will be able to read and write q programs when you finish this book.The q language is both a functional programming language and a vector programming language derived from APL. It is particularly well suited to processing very large time series data.Topics covered include: data types; operations and functions; the basic data structures, lists and dictionaries; tables and keyed tables; joins and queries; commands. There is a special section demonstrating typical queries against trade data. There is also a complete reference to all the built-in functions.
Author: Jeffry Borror
Publisher:
ISBN: 9780692573679
Category :
Languages : en
Pages : 586
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Book Description
Author: Nick Psaris
Publisher:
ISBN: 9789881389909
Category : Database design
Languages : en
Pages : 314
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Book Description
Learn q by building a real life application. Q Tips teaches you everything you need to know to build a fully functional CEP engine. Advanced topics include profiling an active kdb+ server, derivatives pricing and histogram charting. As each new topic is introduced, tips are highlighted to help you write better q.
Author: Dan Sullivan
Publisher: Pearson Education
ISBN: 0134023218
Category : Computers
Languages : en
Pages : 546
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Book Description
NoSQL for Mere Mortals is an easy, practical guide to succeeding with NoSQL in your environment. Students are guided step-by-step through choosing technologies, designing high-performance databases, and planning for long-term maintenance. The author introduces each type of NoSQL database, shows how to install and manage them, and demonstrates how to leverage their features while avoiding common mistakes that lead to poor performance and unmet requirements. He uses four popular NoSQL databases as reference models: MongoDB, a document database; Cassandra, a column family data store; Redis, a key-value database; and Neo4j, a graph database.
Author: Lani Sarem
Publisher: Geeknation Press
ISBN: 9781545611456
Category : Young Adult Fiction
Languages : en
Pages : 432
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Book Description
"Zade Holder has always been a free-spirited young woman, from a long dynasty of tarot-card readers, fortunetellers, and practitioners of magick. Growing up in a small town and never quite fitting in, Zade is determined to forge her own path. She leaves her home in Tennessee to break free from her overprotective mother Dela, the local resident spellcaster and fortuneteller. Zade travels to Las Vegas and uses supernatural powers to become part of a premiere magic show led by the infamous magician Charles Spellman. Zade fits right in with his troupe of artists and misfits. After all, when everyone is slightly eccentric, appearing 'normal' is much less important. Behind the scenes of this multimillion-dollar production, Zade finds herself caught in a love triangle with Mac, the show's good-looking but rough-around-the-edges technical director and Jackson, the tall, dark, handsome and charming bandleader. Zade's secrets and the struggle to choose between Mac or Jackson creates reckless tension during the grand finale of the show. Using Chaos magick, which is known for being unpredictable, she tests her abilities as a spellcaster farther than she's ever tried and finds herself at death's door. Her fate is left in the hands of a mortal who does not believe in a world of real magick, a fortuneteller who knew one day Zade would put herself in danger and a dagger with mystical powers"--Amazon.com
Author: Oliver Burkeman
Publisher: Farrar, Straus and Giroux
ISBN: 0374715246
Category : Self-Help
Languages : en
Pages : 140
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Book Description
AN INSTANT NEW YORK TIMES BESTSELLER "Provocative and appealing . . . well worth your extremely limited time." —Barbara Spindel, The Wall Street Journal The average human lifespan is absurdly, insultingly brief. Assuming you live to be eighty, you have just over four thousand weeks. Nobody needs telling there isn’t enough time. We’re obsessed with our lengthening to-do lists, our overfilled inboxes, work-life balance, and the ceaseless battle against distraction; and we’re deluged with advice on becoming more productive and efficient, and “life hacks” to optimize our days. But such techniques often end up making things worse. The sense of anxious hurry grows more intense, and still the most meaningful parts of life seem to lie just beyond the horizon. Still, we rarely make the connection between our daily struggles with time and the ultimate time management problem: the challenge of how best to use our four thousand weeks. Drawing on the insights of both ancient and contemporary philosophers, psychologists, and spiritual teachers, Oliver Burkeman delivers an entertaining, humorous, practical, and ultimately profound guide to time and time management. Rejecting the futile modern fixation on “getting everything done,” Four Thousand Weeks introduces readers to tools for constructing a meaningful life by embracing finitude, showing how many of the unhelpful ways we’ve come to think about time aren’t inescapable, unchanging truths, but choices we’ve made as individuals and as a society—and that we could do things differently.
Author: John L. Viescas
Publisher: Pearson Education
ISBN: 0321992474
Category : Computers
Languages : en
Pages : 792
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Book Description
The #1 Easy, Common-Sense Guide to SQL Queries--Updated for Today's Databases, Standards, and Challenges SQL Queries for Mere Mortals ® has earned worldwide praise as the clearest, simplest tutorial on writing effective SQL queries. The authors have updated this hands-on classic to reflect new SQL standards and database applications and teach valuable new techniques. Step by step, John L. Viescas and Michael J. Hernandez guide you through creating reliable queries for virtually any modern SQL-based database. They demystify all aspects of SQL query writing, from simple data selection and filtering to joining multiple tables and modifying sets of data. Three brand-new chapters teach you how to solve a wide range of challenging SQL problems. You'll learn how to write queries that apply multiple complex conditions on one table, perform sophisticated logical evaluations, and think "outside the box" using unlinked tables. Coverage includes -- Getting started: understanding what relational databases are, and ensuring that your database structures are sound -- SQL basics: using SELECT statements, creating expressions, sorting information with ORDER BY, and filtering data using WHERE -- Summarizing and grouping data with GROUP BY and HAVING clauses -- Drawing data from multiple tables: using INNER JOIN, OUTER JOIN, and UNION operators, and working with subqueries -- Modifying data sets with UPDATE, INSERT, and DELETE statements Advanced queries: complex NOT and AND, conditions, if-then-else using CASE, unlinked tables, driver tables, and more Practice all you want with downloadable sample databases for today's versions of Microsoft Office Access, Microsoft SQL Server, and the open source MySQL database. Whether you're a DBA, developer, user, or student, there's no better way to master SQL. informit.com/aw forMereMortals.com
Author: Anna Della Subin
Publisher: Metropolitan Books
ISBN: 1250296889
Category : History
Languages : en
Pages : 435
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Book Description
NAMED A BEST BOOK OF THE YEAR BY ESQUIRE, THE IRISH TIMES AND THE TIMES LITERARY SUPPLEMENT A provocative history of men who were worshipped as gods that illuminates the connection between power and religion and the role of divinity in a secular age Ever since 1492, when Christopher Columbus made landfall in the New World and was hailed as a heavenly being, the accidental god has haunted the modern age. From Haile Selassie, acclaimed as the Living God in Jamaica, to Britain’s Prince Philip, who became the unlikely center of a new religion on a South Pacific island, men made divine—always men—have appeared on every continent. And because these deifications always emerge at moments of turbulence—civil wars, imperial conquest, revolutions—they have much to teach us. In a revelatory history spanning five centuries, a cast of surprising deities helps to shed light on the thorny questions of how our modern concept of “religion” was invented; why religion and politics are perpetually entangled in our supposedly secular age; and how the power to call someone divine has been used and abused by both oppressors and the oppressed. From nationalist uprisings in India to Nigerien spirit possession cults, Anna Della Subin explores how deification has been a means of defiance for colonized peoples. Conversely, we see how Columbus, Cortés, and other white explorers amplified stories of their godhood to justify their dominion over native peoples, setting into motion the currents of racism and exclusion that have plagued the New World ever since they touched its shores. At once deeply learned and delightfully antic, Accidental Gods offers an unusual keyhole through which to observe the creation of our modern world. It is that rare thing: a lyrical, entertaining work of ideas, one that marks the debut of a remarkable literary career.
Author: David Mack
Publisher: Simon and Schuster
ISBN: 1439117926
Category : Fiction
Languages : en
Pages : 449
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Book Description
The second novel in an epic crossover trilogy uniting characters from every corner of the Star Trek universe, revealing the shocking origin and final fate of the Federation's most dangerous enemy—the Borg. On Earth, Federation President Nanietta Bacco gathers allies and adversaries to form a desperate last line of defense against an impending Borg invasion. In deep space, Captain Jean-Luc Picard and Captain Ezri Dax join together to cut off the Collective’s route to the Alpha Quadrant. Half a galaxy away, Captain William Riker and the crew of the Starship Titan have made contact with the reclusive Caeliar—survivors of a stellar cataclysm that, two hundred years ago, drove fissures through the structure of space and time, creating a loop of inevitability and consigning another captain and crew to a purgatory from which they could never escape. Now the supremely advanced Caeliar will brook no further intrusion upon their isolation, or against the sanctity of their Great Work. For the small, finite lives of mere mortals carry little weight in the calculations of gods. But even gods may come to understand that they underestimate humans at their peril.
Author: Lulu Miller
Publisher: Simon and Schuster
ISBN: 1501160346
Category : Biography & Autobiography
Languages : en
Pages : 256
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Book Description
Nineteenth-century scientist David Starr Jordan built one of the most important fish specimen collections ever seen, until the 1906 San Francisco earthquake shattered his life's work.
