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Learn to Summarise data using aggregation and Query multiple tables
An excellent training about Database Design & Development
Beginners Guide to Developing SQL Queries for SQL Server
Microsoft SQL Server is robust relational database management system used by so many organizations of various sizes including top fortune 100 companies. SQL -Structural Query language is the language used to interrogate and manipulateMicrosoft SQL Server Databases. This course is a beginners course that will walk you through how to develop queriesto execute on and SQL Server Database. We will start by developing queries to: Retrieve data with SELECT Use Aliases Use Case Expressions Retrieve data from a view Eliminate duplicatesFilter data with equality filters Filter data with basic comparisons Filter data with string comparisons Filter data with logical comparisons Filter data with comparisons Use order by clauseSort data by ascending order Sort data by multiple columns Add new records Update existing records Delete records There may be times when want to retrieve data from multiple tables and in coursewe will do that using: Inner joins Left outer joins Right Outer joins We will also be Summarising data with aggregate functions such as: COUNT SUM AVG MIN MAX Grouping data ORDER BY Clause SQL forms the cornerstone of all relational database operations. Taking full advantage of its power requires an in-depth understanding of the language. In this course, you learn to use the full potential of SQL to write simple queries for SQL Server databases. You will gain the practical skills to choose the best query method to ensure accuracy and avoid common errors or pitfalls.
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