6、 接下来通过MAX ()函数查询年龄的最大值,输入语句:select MAX (age) as 年龄 from Student,点击执行后即可获取学生中的最大年龄。
SQL Server是一款功能强大的数据库管理系统。今天我们来探讨如何在SQL Server中对查询结果进行排序操作,掌握常用排序方法与语法应用。 6、 将查询语句修改为:select * from Student order by age,然后选中该语句并点击执行。查看下方结果显示,所有学生信息已按年龄从小到大顺序排列。
One of the most common problems when running SQL Servers is slow queries. The help desk or database team usually hears that described as the application is slow or ...
Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...
SQL Server Management Studio or SSMS allows you to connect to the SQL server and execute queries. In this tutorial, we will see how you can install and configure SQL Server Management Studio in ...
Microsoft's relational database engine has had the same licensing model since 2012. The new version released this week brings significant changes that brings SQL Server closer to Azure SQL's licensing ...
Organizations can use SQL Server to reduce downtime, manage and secure databases, and discover patterns in mission-critical information to improve business intelligence. To rebuild a corrupted master ...
We list the best SQL online courses, to make it simple and easy to learn how to mange, code, and run databases, covering everything from beginner to advanced users. The Structured Query Language or ...
A recent project at my current employer called for creating a new web frontend to an existing MSSQL database. My boss, having created a sophisticated MySQL and PHP-driven black diamond web site in PHP ...