Big data
Anirudh Kala, Anshul Bhatnagar, Sarthak Sarbahi
Databricks is an industry-leading, cloud-based platform for data analytics, data science, and data engineering supporting thousands of organizations across the world in their data journey. It is a fast, easy, and collaborative Apache Spark-based big data analytics platform for data science and data engineering in the cloud.In Optimizing Databricks Workloads, you will get started with a brief introduction to Azure Databricks and quickly begin to understand the important optimization techniques. The book covers how to select the optimal Spark cluster configuration for running big data processing and workloads in Databricks, some very useful optimization techniques for Spark DataFrames, best practices for optimizing Delta Lake, and techniques to optimize Spark jobs through Spark core. It contains an opportunity to learn about some of the real-world scenarios where optimizing workloads in Databricks has helped organizations increase performance and save costs across various domains.By the end of this book, you will be prepared with the necessary toolkit to speed up your Spark jobs and process your data more efficiently.
Francisco Munoz Alvarez, Aman Sharma
The three main responsibilities of a successful DBA are to ensure the availability, recoverability, and performance of any database. To ensure the recoverability of any database, a DBA needs to have a strong backup and recovery skills set. Every DBA is always looking for a reference book that will help them to solve any possible backup and recovery situation that they can come across in their professional life.Oracle Database 12c Backup and Recovery Survival Guide has the unique advantage to be a reference to all Oracle backup and recovery options available, making it essential for any DBA in the world. If you are new to Oracle Database, this book will introduce you to the fantastic world of backup and recovery that is vital to your success. If you are an experienced DBA, this book will become a reference guide and will also help you to learn some possible new skills, or give you some new ideas you were never aware about. It will also help you to easily find the solution to some of the most well known problems you could find during your career as a DBA. This book contains useful screenshots, scripts, and examples that you will find more than useful.Most of the books currently available in the market concentrate only on the RMAN utility to backup and recovery. This book will be an exception to the rule and will become a must-have reference, allowing you to design a real and complete backup and recovery strategy. It covers the most important topics on Oracle database such as backup strategies, Nologging operations, new features in 12c, user managed backups and recoveries, RMAN (including reporting, catalog management, troubleshooting, and performance tuning), advanced data pump, Oracle Enterprise Manager 12c and SQL Developer.Oracle Database 12c Backup and Recovery Survival Guide contains everything a DBA needs to know to keep data safe and recoverable, using real-life scenarios.
OSINT w praktyce. Jak gromadzić i analizować dane dostępne w sieci
Dale Meredith
Pojęcie OSINT pochodzi od angielskiego wyrażenia open source intelligence i oznacza biały wywiad. Polega na pozyskiwaniu danych z publicznie dostępnych źródeł. Okazuje się, że niezwykle cenne informacje są dostępne na wyciągnięcie ręki, ale trzeba wiedzieć, w jaki sposób do nich dotrzeć. A potrafi to być niezwykle wciągające zajęcie, przy okazji którego można poznać podstawy cyberbezpieczeństwa, zrozumieć czyhające w internecie zagrożenia i nauczyć się zabezpieczać swoją cyfrową obecność. Z tą książką krok po kroku zagłębisz się w metody OSINT, a także powiązane z nim zagadnienia natury prawnej i etycznej. Poznasz sposoby gromadzenia i analizowania informacji z wykorzystaniem wyszukiwarek, portali społecznościowych i innych zasobów internetowych. Zrozumiesz wagę anonimowości i technik gwarantujących bezpieczne poruszanie się po sieci, ułatwiających zarządzanie cyfrowym śladem czy tworzenie fikcyjnych tożsamości internetowych. Zdobędziesz również doświadczenie w korzystaniu z popularnych narzędzi OSINT, takich jak Recon-ng, Maltego, Shodan czy Aircrack-ng. Dowiesz się też, jak ograniczać ryzyko, przewidywać cyberataki, zapobiegać im i na nie reagować - wszystko dzięki technikom opartym na OSINT. W książce: działanie OSINT i najlepsze praktyki automatyzacja zbierania i analizy danych dane z mediów społecznościowych a OSINT zarządzanie swoim cyfrowym śladem, ograniczanie ryzyka i ochrona prywatności skuteczny program analizy ryzyka na bazie OSINT zwiększanie bezpieczeństwa firmy technikami OSINT Dołącz potężne narzędzia OSINT do swojego arsenału!
Pandas Basics. Mastering Data Analysis with Pandas
Mercury Learning and Information, Oswald Campesato
This book is essential for aspiring data scientists and anyone needing to perform data cleaning using Pandas and NumPy. It offers numerous code samples and comprehensive coverage of NumPy and Pandas features, including writing regular expressions. Chapter 3 introduces fundamental statistical concepts, while Chapter 7 delves into data visualization using Matplotlib and Seaborn. Companion files with code are available for download from the publisher.Starting with an introduction to Python, the course progresses through working with data, and then moves into Pandas, covering its functionalities in three detailed chapters. The statistical concepts provided are crucial for analyzing data effectively, while the visualization techniques enhance the ability to present data insights clearly.By the end of this course, users will have a solid foundation in data manipulation and cleaning, statistical analysis, and data visualization, enabling them to tackle real-world data science tasks confidently and efficiently.
William Ayd, Matthew Harrison, Wes McKinney
Unlock the full power of pandas 2.x with this hands-on cookbook, designed for Python developers, data analysts, and data scientists who need fast, efficient solutions for real-world data challenges. This book provides practical, ready-to-use recipes to streamline your workflow. With step-by-step guidance, you'll master data wrangling, visualization, performance optimization, and scalable data analysis using pandas’ most powerful features. From importing and merging large datasets to advanced time series analysis and SQL-like operations, this cookbook equips you with the tools to analyze, manipulate, and visualize data like a pro. Learn how to boost efficiency, optimize memory usage, and seamlessly integrate pandas with NumPy, PyArrow, and databases. This book will help you transform raw data into actionable insights with ease.*Email sign-up and proof of purchase required
Theodore Petrou
This book will provide you with unique, idiomatic, and fun recipes for both fundamental and advanced data manipulation tasks with pandas 0.20. Some recipes focus on achieving a deeper understanding of basic principles, or comparing and contrasting two similar operations. Other recipes will dive deep into a particular dataset, uncovering new and unexpected insights along the way.The pandas library is massive, and it's common for frequent users to be unaware of many of its more impressive features. The official pandas documentation, while thorough, does not contain many useful examples of how to piece together multiple commands like one would do during an actual analysis. This book guides you, as if you were looking over the shoulder of an expert, through practical situations that you are highly likely to encounter.Many advanced recipes combine several different features across the pandas 0.20 library to generate results.
Francesco Corti
This hands-on tutorial, filled with exercises and examples, introduces the reader to a variety of concepts within Pentaho Reporting. With screenshots that show you how reports look at design time as well as how they should look when rendered as PDF, Excel, HTML, Text, Rich-Text-File, XML, and CSV, this book also contains complete example source code that you can copy and paste into your environment to get up-and-running quickly. Updated to cover the features of Pentaho 8, this book will teach you everything you need to know to build fast, efficient reports using Pentaho. If your interest lies in the technical details of creating reports and you want to see how to solve common reporting problems with a minimum of fuss, this is the book for you.