NAUT
发表于 2025-3-25 06:40:00
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mortuary
发表于 2025-3-25 11:29:17
Querying Multiple Tables,eries involving two or more tables. In a properly designed relational database, a table contains data about one thing or entity. For example, an order-entry application will have a table storing customer information, a table containing data about orders, and a table containing detail information abo
ascetic
发表于 2025-3-25 12:32:12
Grouping and Summarizing Data,tions. The previous chapter taught you how to write queries with multiple tables so that the data makes sense in applications and reports. Now it is time to learn about a special type of query, ., used to group and summarize data. You may find that writing aggregate queries is more challenging than
Fabric
发表于 2025-3-25 16:16:08
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最后一个
发表于 2025-3-25 22:06:36
Understanding T-SQL Programming Logic,f the time you will write T-SQL statements that retrieve or update data, but you can also set up loops and write code with conditional flow. Often database administrators write scripts in T-SQL to perform maintenance tasks that require more than just retrieving or updating data. For example, you mig
物种起源
发表于 2025-3-26 02:41:22
Moving Logic to the Database, new rows and updating or deleting existing rows. You can use many other objects in a SQL Server database to make your database applications more efficient and secure. This chapter teaches you how add restrictions to tables and to create these other objects by using In this chapter, you will Data De
乐章
发表于 2025-3-26 06:43:06
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Adornment
发表于 2025-3-26 08:51:42
Writing Advanced Queries,bout some of the new functions and advanced queries available with these most recent releases. For example, you will learn more about common table expressions (CTEs), how to write a pivot query, how to use the new ranking functions, and more. As a beginning T-SQL developer, you may or may not need t
Orgasm
发表于 2025-3-26 12:49:30
Where to Go Next?,really enjoy writing code. Programming is not something you can just learn and be done with it. You will continue to learn new techniques as long as you are programming T-SQL. The other thing you can count on is that Microsoft will continue to add new features to SQL Server, including new T-SQL feat
d-limonene
发表于 2025-3-26 20:44:43
his book will do more than just give the syntax and examples. It will teach you techniques to help you avoid common errors and create robust and well-performing code... .Imparts best practices for writing T-SQL . .Helps readers avoid common errors . .Shows how to write scalable code that yields good performance ..978-1-4302-2461-7978-1-4302-2462-4