[PDF] Sql Pocket Primer eBook

Author : Oswald Campesato
Publisher : Mercury Learning and Information
Page : 329 pages
File Size : 20,91 MB
Release : 2022-03-09
Category : Computers
ISBN : 1683928121

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As part of the best-selling Pocket Primer series, this book is primarily for data scientists and machine learning engineers who want to expand their current knowledge of SQL using MySQL as the primary RDBMS. It includes Python-based code samples to access data from a MySQL table in a Pandas data frame and Java-based code samples for accessing data in a MySQL database, along with XML documents and JSON documents. The book also introduces NoSQL, presents an overview of MongoDB, and SQLite--an open-source RDBMS available on mobile devices. The final chapter of the book covers a diverse set of miscellaneous topics, such as normalization, schemas, database optimization, and performance. Numerous code samples and listings are included to support myriad topics. Companion files with source code and figures are available from the publisher. FEATURES: Covers extensive topics related to SQL, using MySQL as the primary RDBMS Introduces NoSQL, presents an overview of MongoDB, and SQLite--an open-source RDBMS available on mobile devices Features companion files with source code and figures from the book

Author : Julitta Korol
Publisher : Mercury Learning and Information
Page : 288 pages
File Size : 24,66 MB
Release : 2015-05-15
Category : Computers
ISBN : 1942270593

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As part of the Pocket Primer series, this book provides an overview of the major concepts to program Microsoft Access/VBA. The focus of this book is on basic programming instructions for both Access 2013 and previous versions. FEATURES: * Provides an overview of the most important Access/VBA programming techniques * Covers both Access 2013 and 2010 versions * Includes CD with source code, projects, and figures

Author : Oswald Campesato
Publisher : Mercury Learning and Information
Page : 218 pages
File Size : 41,52 MB
Release : 2022-05-04
Category : Computers
ISBN : 1683928180

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As part of the best-selling Pocket Primer series, this book is designed to introduce the reader to the basic concepts of managing data using a variety of computer languages and applications. It is intended to be a fast-paced introduction to some basic features of data management and covers statistical concepts, data-related techniques, features of Pandas, RDBMS, SQL, NLP topics, Matplotlib, and data visualization. Companion files with source code and color figures are available. FEATURES: Covers Pandas, RDBMS, NLP, data cleaning, SQL, and data visualization Introduces probability and statistical concepts Features numerous code samples throughout Includes companion files with source code and figures

Author : Oswald Campesato
Publisher : Mercury Learning and Information
Page : 298 pages
File Size : 50,11 MB
Release : 2022-11-30
Category : Computers
ISBN : 1683925483

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As part of the best-selling Pocket Primer series, this book is designed to provide a thorough introduction to Java development for people who are relatively new to the Java programming language. It is intended to be a fast-paced introduction to the core concepts of Java and Java APIs, illustrated with code samples using primarily Java 8. Companion files with source code are available. FEATURES: Covers Boolean logic, loops, arrays, recursion, OOP concepts, data structures, streams, SQL, and more Lists new features in Java 9 through Java 13 Features numerous code samples throughout Includes companion files with source code

Author : Rahul Batra
Publisher : Apress
Page : 199 pages
File Size : 39,37 MB
Release : 2018-06-15
Category : Computers
ISBN : 1484235762

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Build a core level of competency in SQL so you can recognize the parts of queries and write simple SQL statements. SQL knowledge is essential for anyone involved in programming, data science, and data management. This book covers features of SQL that are standardized and common across most database vendors. You will gain a base of knowledge that will prepare you to go deeper into the specifics of any database product you might encounter. Examples in the book are worked in PostgreSQL and SQLite, but the bulk of the examples are platform agnostic and will work on any database platform supporting SQL. Early in the book you learn about table design, the importance of keys as row identifiers, and essential query operations. You then move into more advanced topics such as grouping and summarizing, creating calculated fields, joining data from multiple tables when it makes business sense to do so, and more. Throughout the book, you are exposed to a set-based approach to the language and are provided a good grounding in subtle but important topics such as the effects of null value on query results. With the explosion of data science, SQL has regained its prominence as a top skill to have for technologists and decision makers worldwide. SQL Primer will guide you from the very basics of SQL through to the mainstream features you need to have a solid, working knowledge of this important, data-oriented language. What You'll Learn Create and populate your own database tables Read SQL queries and understand what they are doing Execute queries that get correct results Bring together related rows from multiple tables Group and sort data in support of reporting applications Get a grip on nulls, normalization, and other key concepts Employ subqueries, unions, and other advanced features Who This Book Is For Anyone new to SQL who is looking for step-by-step guidance toward understanding and writing SQL queries. The book is aimed at those who encounter SQL statements often in their work, and provides a sound baseline useful across all SQL database systems. Programmers, database managers, data scientists, and business analysts all can benefit from the baseline of SQL knowledge provided in this book.

Author : Oswald Campesato
Publisher : Mercury Learning and Information
Page : 434 pages
File Size : 44,14 MB
Release : 2022-10-21
Category : Computers
ISBN : 1683928210

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As part of the best-selling Pocket Primer series, this book is designed to provide a thorough introduction to numerous Python tools for data scientists. The book covers features of NumPy and Pandas, how to write regular expressions, and how to perform data cleaning tasks. It includes separate chapters on data visualization and working with Sklearn and SciPy. Companion files with source code are available. FEATURES: Introduces Python, NumPy, Sklearn, SciPy, and awk Covers data cleaning tasks and data visualization Features numerous code samples throughout Includes companion files with source code

Author : Jonathan Gennick
Publisher : "O'Reilly Media, Inc."
Page : 206 pages
File Size : 50,13 MB
Release : 2010-11-10
Category : Computers
ISBN : 144930186X

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If you're a programmer or database administrator who uses SQL in your day-to-day work, this popular pocket guide is the ideal on-the-job reference. You'll find many examples that address the language's complexity, along with key aspects of SQL used in IBM DB2 Release 9.7, MySQL 5.1, Oracle Database 11g Release 2, PostgreSQL 9.0, and Microsoft SQL Server 2008 Release 2. SQL Pocket Guide describes how these database systems implement SQL syntax for querying, managing transactions, and making changes to data. It also shows how the systems use SQL functions, regular expression syntax, and type conversion functions and formats. All example SQL statements in this book execute against a set of tables, with data that you can quickly download. The third edition covers important database changes, including: Oracle's support of the recursive WITH syntax, and addition of PIVOT and UNPIVOT operators Functions new to Oracle, such as LISTAGG, NTH_VALUE, and more PostgreSQL’s support of recursive WITH and some window functions DB2 syntax and datatypes, some compatible with Oracle MySQL features such as the TIMESTAMP type and the TO_SECONDS function

Author : Alice Zhao
Publisher : "O'Reilly Media, Inc."
Page : 247 pages
File Size : 34,23 MB
Release : 2021-08-26
Category : Computers
ISBN : 1492090352

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If you use SQL in your day-to-day work as a data analyst, data scientist, or data engineer, this popular pocket guide is your ideal on-the-job reference. You'll find many examples that address the language's complexities, along with key aspects of SQL used in Microsoft SQL Server, MySQL, Oracle Database, PostgreSQL, and SQLite. In this updated edition, author Alice Zhao describes how these database management systems implement SQL syntax for both querying and making changes to a database. You'll find details on data types and conversions, regular expression syntax, window functions, pivoting and unpivoting, and more. Quickly look up how to perform specific tasks using SQL Apply the book's syntax examples to your own queries Update SQL queries to work in five different database management systems NEW: Connect Python and R to a relational database NEW: Look up frequently asked SQL questions in the "How Do I?" chapter

Author : Jonathan Gennick
Publisher : "O'Reilly Media, Inc."
Page : 164 pages
File Size : 15,34 MB
Release : 2004
Category : Database management
ISBN : 9780596005122

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This pocket guide presents the most crucial information about SQL in a compact and easily accessible format, covering the four commonly used SQL variants--Oracle, IBM DB2, Microsoft SQL Server, and MySQL. Topics include: Data manipulation statements (SELECT, DELETE, INSERT, UPDATE, MERGE) and transaction control statements (START TRANSACTION, SAVEPOINT, COMMIT, ROLLBACK). Common SQL functions (date, numeric, math, trigonometric, string, conversion, aggregate) Such topics as literals, NULLs, CASE expressions, datatype conversion, regular expressions, grouping and summarizing data, joining tables, and writing queries (hierarchical, recursive, union, flashback) and subqueries. Instead of presenting complex and confusing syntax diagrams, the book teaches by example, showing the SQL statements and options that readers are most like to use. All example data is available on the O'Reilly web site. "If you need fast, accurate SQL information, with examples for multiple database engines, be sure to check out this book."--Chris Kempster, Senior DBA and author of SQL Server 2000 for the Oracle DBA, www.chriskempster.com