mysql鐨勫父瑙勭储寮昳ndex
甯歌绱㈠紩鎶€鏈槸鍏崇郴鏁版嵁鏌ヨ涓渶閲嶈鐨勬妧鏈紝濡傛灉瑕佹彁鍗囨暟鎹簱鐨勬€ц兘锛岀储寮曚紭鍖栨槸棣栧厛搴旇鑰冭檻鐨勶紝鍥犱负瀹冭兘浣跨敤鎴戜滑鐨勬暟鎹簱寰楀埌鏈€澶ф€ц兘鏂归潰鐨勬彁鍗囥€傚鏋滄病鏈夌储寮曠殑鏁版嵁琛紝灏辨病鏈夋帓搴忕殑鏁版嵁闆嗗悎锛岃鏌ヨ鏁版嵁灏遍渶瑕佽繘琛屽叏琛ㄦ壂鎻忋€傛湁绱㈠紩鐨勮〃鏄竴涓湪绱㈠紩鍒椾笂鎺掑簭浜嗙殑鏁版嵁琛紝鍙€氳繃绱㈠紩蹇€熷畾浣嶈褰曘€?/p>
MyISAM鏁版嵁琛ㄤ腑鏁版嵁淇濆瓨鍦ㄦ暟鎹枃浠朵腑锛岀储寮曚繚瀛樺湪绱㈠紩鏂囦欢(.MYI)涓€傝€孖nnoDB鏁版嵁琛ㄦ妸鏁版嵁涓庣储寮曟斁鍦ㄥ悓涓€涓枃浠朵腑銆?/p>
甯歌绱㈠紩鐨勭己鐐癸細
1)鍑忔參鍦ㄧ储寮曟暟鎹垪涓婄殑鎻掑叆銆佸垹闄ゅ拰淇敼鎿嶄綔銆傚姞浜嗙储寮曚箣鍚庯紝insert銆乨elete鍜寀pdate鎿嶄綔閮借鏇存柊绱㈠紩锛屼細閫犳垚涓€浜涢檮鍔犳搷浣?/p>
2)澶氬崰纾佺洏绌洪棿銆傜储寮曟槸淇濆瓨鍦ㄧ墿鐞嗘枃浠?.MYI)閲岀殑锛屾墍浠ュ鏋滃湪涓€寮犲ぇ琛ㄤ笂鍒涘缓绱㈠紩锛屼細閫犳垚绱㈠紩鏂囦欢涔熸瘮杈冨ぇ
mysql璇彞涓€傜敤甯歌绱㈠紩鐨勫湴鏂?/strong>
鍦╓HEERE(=,>,between,in,like)鍜宩oin(on)瀛愬彞锛屽叧鑱旀绱腑鐨凢ROM瀛愬彞锛孫RDER BY鎴朑ROUP BY瀛愬彞涓嚭鐜拌繃鐨勬暟鎹垪銆?/p>
浣跨敤绱㈠紩瑕佹敞鎰忎粈涔堬紵
绱㈠紩鏄細娑堣€楃郴缁熻祫婧愮殑锛岃閫傚彲鑰屾銆?/p>
鍒涘缓甯歌绱㈠紩鐨勬柟娉?br/>
鍘熻〃锛?/p>
CREATE TABLE `wb
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
Solution: Your organization requires you to change your PIN
Oct 04, 2023 pm 05:45 PM
The message "Your organization has asked you to change your PIN" will appear on the login screen. This happens when the PIN expiration limit is reached on a computer using organization-based account settings, where they have control over personal devices. However, if you set up Windows using a personal account, the error message should ideally not appear. Although this is not always the case. Most users who encounter errors report using their personal accounts. Why does my organization ask me to change my PIN on Windows 11? It's possible that your account is associated with an organization, and your primary approach should be to verify this. Contacting your domain administrator can help! Additionally, misconfigured local policy settings or incorrect registry keys can cause errors. Right now
How to adjust window border settings on Windows 11: Change color and size
Sep 22, 2023 am 11:37 AM
Windows 11 brings fresh and elegant design to the forefront; the modern interface allows you to personalize and change the finest details, such as window borders. In this guide, we'll discuss step-by-step instructions to help you create an environment that reflects your style in the Windows operating system. How to change window border settings? Press + to open the Settings app. WindowsI go to Personalization and click Color Settings. Color Change Window Borders Settings Window 11" Width="643" Height="500" > Find the Show accent color on title bar and window borders option, and toggle the switch next to it. To display accent colors on the Start menu and taskbar To display the theme color on the Start menu and taskbar, turn on Show theme on the Start menu and taskbar
How to change title bar color on Windows 11?
Sep 14, 2023 pm 03:33 PM
By default, the title bar color on Windows 11 depends on the dark/light theme you choose. However, you can change it to any color you want. In this guide, we'll discuss step-by-step instructions for three ways to change it and personalize your desktop experience to make it visually appealing. Is it possible to change the title bar color of active and inactive windows? Yes, you can change the title bar color of active windows using the Settings app, or you can change the title bar color of inactive windows using Registry Editor. To learn these steps, go to the next section. How to change title bar color in Windows 11? 1. Using the Settings app press + to open the settings window. WindowsI go to "Personalization" and then
OOBELANGUAGE Error Problems in Windows 11/10 Repair
Jul 16, 2023 pm 03:29 PM
Do you see "A problem occurred" along with the "OOBELANGUAGE" statement on the Windows Installer page? The installation of Windows sometimes stops due to such errors. OOBE means out-of-the-box experience. As the error message indicates, this is an issue related to OOBE language selection. There is nothing to worry about, you can solve this problem with nifty registry editing from the OOBE screen itself. Quick Fix – 1. Click the “Retry” button at the bottom of the OOBE app. This will continue the process without further hiccups. 2. Use the power button to force shut down the system. After the system restarts, OOBE should continue. 3. Disconnect the system from the Internet. Complete all aspects of OOBE in offline mode
How to enable or disable taskbar thumbnail previews on Windows 11
Sep 15, 2023 pm 03:57 PM
Taskbar thumbnails can be fun, but they can also be distracting or annoying. Considering how often you hover over this area, you may have inadvertently closed important windows a few times. Another disadvantage is that it uses more system resources, so if you've been looking for a way to be more resource efficient, we'll show you how to disable it. However, if your hardware specs can handle it and you like the preview, you can enable it. How to enable taskbar thumbnail preview in Windows 11? 1. Using the Settings app tap the key and click Settings. Windows click System and select About. Click Advanced system settings. Navigate to the Advanced tab and select Settings under Performance. Select "Visual Effects"
Display scaling guide on Windows 11
Sep 19, 2023 pm 06:45 PM
We all have different preferences when it comes to display scaling on Windows 11. Some people like big icons, some like small icons. However, we all agree that having the right scaling is important. Poor font scaling or over-scaling of images can be a real productivity killer when working, so you need to know how to customize it to get the most out of your system's capabilities. Advantages of Custom Zoom: This is a useful feature for people who have difficulty reading text on the screen. It helps you see more on the screen at one time. You can create custom extension profiles that apply only to certain monitors and applications. Can help improve the performance of low-end hardware. It gives you more control over what's on your screen. How to use Windows 11
10 Ways to Adjust Brightness on Windows 11
Dec 18, 2023 pm 02:21 PM
Screen brightness is an integral part of using modern computing devices, especially when you look at the screen for long periods of time. It helps you reduce eye strain, improve legibility, and view content easily and efficiently. However, depending on your settings, it can sometimes be difficult to manage brightness, especially on Windows 11 with the new UI changes. If you're having trouble adjusting brightness, here are all the ways to manage brightness on Windows 11. How to Change Brightness on Windows 11 [10 Ways Explained] Single monitor users can use the following methods to adjust brightness on Windows 11. This includes desktop systems using a single monitor as well as laptops. let's start. Method 1: Use the Action Center The Action Center is accessible
How to turn off private browsing authentication for iPhone in Safari?
Nov 29, 2023 pm 11:21 PM
In iOS 17, Apple introduced several new privacy and security features to its mobile operating system, one of which is the ability to require two-step authentication for private browsing tabs in Safari. Here's how it works and how to turn it off. On an iPhone or iPad running iOS 17 or iPadOS 17, Apple's browser now requires Face ID/Touch ID authentication or a passcode if you have any Private Browsing tab open in Safari and then exit the session or app to access them again. In other words, if someone gets their hands on your iPhone or iPad while it's unlocked, they still won't be able to view your privacy without knowing your passcode
