pIf 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.ppIn 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.pulliQuickly look up how to perform specific tasks using SQLliliApply the book's syntax examples to your own queriesliliUpdate SQL queries to work in five different database management systems liliNEW Connect Python and R to a relational databaseliliNEW Look up frequently asked SQL questions in the How Do I chapterliul