89 questions for “Data Types & Schema Design”

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Information Technology

89 questions in 1 technology

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1What are the most commonly used data types in SQL Server, and when would you use each one? SQL Server › Data Types & Schema DesignSQL ServerData Types & Schema DesignBeginner
2How do you design a schema to properly handle a many to many relationship between two entities, such as students and courses? SQL Server › Data Types & Schema DesignSQL ServerData Types & Schema DesignAdvanced
3How do you choose an appropriately sized data type for a column to balance storage efficiency with future flexibility? SQL Server › Data Types & Schema DesignSQL ServerData Types & Schema DesignIntermediate
4What factors should guide the decision to denormalize a schema for performance reasons, and what tradeoffs come with that decision? SQL Server › Data Types & Schema DesignSQL ServerData Types & Schema DesignAdvanced
5What is the difference between VARCHAR and NVARCHAR, and when should you choose one over the other? SQL Server › Data Types & Schema DesignSQL ServerData Types & Schema DesignBeginner
6What are the differences between DATETIME, DATETIME2, and DATE, and when would you choose each one? SQL Server › Data Types & Schema DesignSQL ServerData Types & Schema DesignIntermediate
7How do computed columns work in SQL Server, and what are some practical use cases for them? SQL Server › Data Types & Schema DesignSQL ServerData Types & Schema DesignIntermediate
8What is database normalization, and why is it an important concept in schema design? SQL Server › NormalizationSQL ServerNormalizationBeginner
9What built-in masking functions are available in SQL Server for dynamic data masking? SQL Server › Dynamic Data MaskingSQL ServerDynamic Data MaskingBeginner
10What does it mean to pivot data in SQL Server, and what kind of reporting need does it typically address? SQL Server › Pivoting & Unpivoting DataSQL ServerPivoting & Unpivoting DataBeginner