SQL Server(1):例题
SQL Server(1):例题 1、编写一段程序:输出1-1000之间的质数,并保存到一个新的质数表(序号, 质数)中。 create table 质数表(序号 int identity(1,1),质数 int) declare @i int, @j int, @flag bit -- @i外循环变量, @j内循环变量, @flag表示是否质数的旗标
SQL Server(1):例题
1、编写一段程序:输出1-1000之间的质数,并保存到一个新的质数表(序号, 质数)中。
create table 质数表(序号 int identity(1,1),质数 int)
declare @i int, @j int, @flag bit -- @i外循环变量, @j内循环变量, @flag表示是否质数的旗标
set @i=2
while @ibegin
set @flag=1
set @j=2
while @jbegin
if @i%@j=0
begin
set @flag=0
break -- ①不是质数就可以退出内循环了
end
set @j=@j+1
end
if @flag=1
insert into 质数表(质数) values(@i)
set @i=@i+1
end -- ②注意缩进和对齐!!!比如每个循环的begin, end。
2、编写一个函数:要求反置一段文本后,香港空间,单词首字母大写输出。例如输入 I am Frank。输出Knarf Ma I。
create function 反置文本(@string varchar(5000))
returns varchar(5000) -- 参数和返回类型
as
begin
declare @i int, @flag bit -- @flag是大小写旗标
declare @reverse varchar(5000), @result varchar(5000)
set @i=1 -- 第一次循环,先实现反置,结果保存到@reverse
set @reverse=''
while(@i begin
set @reverse=SubString(@string, @i,1)+@reverse
set @i=@i+1
end
set @i=1 -- 第二次循环,网站空间,再实现首字母大小写,服务器空间,结果保存到@result
set @flag = 1
set @result=''
while(@i begin
if @flag = 1
set @result=@result + Upper(SubString(@reverse, @i,1))
else
set @result=@result + Lower(SubString(@reverse, @i,1))
if SubString(@reverse, @i,1) in (' ', '.')
set @flag = 1
else
set @flag = 0
set @i=@i+1
end
return(@result)
end
posted on

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

WindowsServerBackup is a function that comes with the WindowsServer operating system, designed to help users protect important data and system configurations, and provide complete backup and recovery solutions for small, medium and enterprise-level enterprises. Only users running Server2022 and higher can use this feature. In this article, we will explain how to install, uninstall or reset WindowsServerBackup. How to Reset Windows Server Backup If you are experiencing problems with your server backup, the backup is taking too long, or you are unable to access stored files, then you may consider resetting your Windows Server backup settings. To reset Windows

On the occasion of releasing the build 26040 version of Windows Server, Microsoft announced the official name of the product: Windows Server 2025. Also launched is the Windows11WindowsInsiderCanaryChannel version build26040. Some friends may still remember that many years ago someone successfully converted Windows NT from workstation mode to server mode, showing the commonalities between various versions of Microsoft operating systems. Although there are clear differences between Microsoft's current version of the server operating system and Windows 11, those who pay attention to the details may be curious: why Windows Server updated the brand,

How to modify the default name of nginx, you can disguise it a little, or you can install Tip: Generally, modifications are made before nginx is compiled. After modification, the code needs to be recompiled as follows: scr/core/nginx.conf#definenginx_version"1.4.7"#definenginx_ver"nginx/"n

While Microsoft released the Win11 preview update for the desktop, today it also released the Windows Server Long Term Service Channel (LTSC) preview Build 25335. As usual, Microsoft did not publish a complete change log, or even provide a corresponding blog post. Microsoft has adjusted the Windows Server preview version update log to make it the same as the Canary channel version. If no new content is introduced, the official blog post will not be posted. Note from IT Home: The server brand has not been updated and is still Windows Server 2022 in the preview version. In addition, Microsoft calls these versions Windows Server vNext instead of the Windows version that is already on the market.

If you think there is no need to install a graphical interface when installing Ubuntu Server 11.04, let alone GNOME 3, which is not yet complete. . Or it should be built with ARCH+GNOME3. So please don't waste your time reading any more. It took 2 nights and a day and reinstalled N times. Finally something has come of it. It's not easy. Without further ado, let’s get to the point: Hardware: One ThinkPad (For X61) 2. Enter the boot options interface, select USB boot, and then choose to install Ubu

According to reports on January 16, foreign technology media WindowsLatest reported that after Windows Server 2022 installed the KB5034129 update, it caused Chrome, Edge and Firefox browsers, as well as Adobe and other applications to have a white screen and be unable to display content. During the January 2024 Patch Tuesday event, Microsoft released the KB5034129 update, which is designed to resolve Wi-Fi adapter issues in Windows Server 2022. This update is widely recommended and should be installed by many companies to ensure system stability and performance. However, many users after installation and upgrade reported that the Windows Server 2022 update will cause

IT House reported on March 14 that in addition to the Windows 11 Build 26080 preview update for the desktop, Microsoft also updated and launched the Windows Server Build 26080 preview update. As the latest preview version of the upcoming Windows Server Long Term Servicing Channel (LTSC), Windows Server Build 26080 provides Data Center Edition and Standard Edition, and users can choose desktop experience and Server Core installation options. This release also includes an annual channel for container hosts, and an Azure release specifically for virtual machine evaluation. IT House queries X social media. User feedback clicks the Copilot button in the lower right corner.

If you need to restart the WindowsServerBackup service, just follow the steps below. You can use a method to start and stop the Windows Server Backup service in almost all versions of Windows Server. Here we will discuss the entire process so that you can easily follow it if needed. How to restart the Windows Server Backup service This process consists of two main stages. First, you should be familiar with how to start the Windows Server Backup service. Next, you can learn the steps on how to stop the service. If the service is already running in the background, you can use another method to kill the process.
