Bộ sách luyện thi ETS 2023 LC&RC
199,000₫
299,000₫
Sách keo gáy, bìa mềm
Data modeling is the single most overlooked feature
in Power BI Desktop, yet it's what sets Power BI apart from other tools
on the market. This practical book serves as your fast-forward button
for data modeling with Power BI, Analysis Services tabular, and SQL
databases. It serves as a starting point for data modeling, as well as a
handy refresher.
Author Markus Ehrenmueller-Jensen, founder of
Savory Data, shows you the basic concepts of Power BI's semantic model
with hands-on examples in DAX, Power Query, and T-SQL. If you're looking
to build a data warehouse layer, chapters with T-SQL examples will get
you started. You'll begin with simple steps and gradually solve more
complex problems.
This book shows you how to
• Normalize and denormalize with DAX, Power Query, and T-SQL
•
Apply best practices for calculations, flags and indicators, time and
date, role-playing dimensions and slowly changing dimensions
• Solve challenges such as binning, budget, localized models, composite models, and key value with DAX, Power Query, and T-SQL
• Discover and tackle performance issues by applying solutions in DAX, Power Query, and T-SQL
• Work with tables, relations, set operations, normal forms, dimensional modeling, and ETL
Thể loại:Computers - Algorithms and Data Structures
Năm:2024
In lần thứ:1
Ngôn ngữ:english
Trang:485
