Home Database Mysql Tutorial jsp留言板源代码一: 给jsp初学者_MySQL

jsp留言板源代码一: 给jsp初学者_MySQL

Jun 01, 2016 pm 02:06 PM
NOT null scholar source code message board



jsp留言板源代码一: 给jsp初学者.
作 者: precom (皮蛋)
oracle数据表创建.

create table guestbook (
lw_title varchar2(100) not null, --留言主题
lw_author varchar2(20) not null, --网上大名 pk
author_http varchar2(40) , --主页地址
author_email varchar2(40) not null,--电子信箱 pk
expression varchar2(2) not null,--表情
lw_time varchar2(14) not null,--发表回应时间
answer_num number(3) not null,--回应数
click_num number(4) not null,--点击数
author_ip varchar2(16) ,--来源ip
lw_class1 varchar2(10) not null,--留言板大类 pk
lw_class2 varchar2(20) not null,--论坛栏目 pk
lw_type varchar2(1) not null,--留言类别,即是否为主贴

zt_time varchar2(14) ,--主贴时间
zt_author varchar2(40) ,--主贴email
lw_content varchar2(4000) ,--内容
constraint pk_guestbook primary key(lw_class1,lw_class2,lw
_time,lw_author)
) storage (initial 5M next 5M pctincrease 1);

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Tutorial on updating curl version under Linux! Tutorial on updating curl version under Linux! Mar 07, 2024 am 08:30 AM

To update the curl version under Linux, you can follow the steps below: Check the current curl version: First, you need to determine the curl version installed in the current system. Open a terminal and execute the following command: curl --version This command will display the current curl version information. Confirm available curl version: Before updating curl, you need to confirm the latest version available. You can visit curl's official website (curl.haxx.se) or related software sources to find the latest version of curl. Download the curl source code: Using curl or a browser, download the source code file for the curl version of your choice (usually .tar.gz or .tar.bz2

What is the difference between null and NULL in c language What is the difference between null and NULL in c language Sep 22, 2023 am 11:48 AM

The difference between null and NULL in C language is: null is a macro definition in C language, usually used to represent a null pointer, which can be used to initialize pointer variables, or to determine whether the pointer is null in a conditional statement; NULL is a macro definition in C language A predefined constant in , usually used to represent a null value, used to represent a null pointer, null pointer array or null structure pointer.

Linux kernel source code storage path analysis Linux kernel source code storage path analysis Mar 14, 2024 am 11:45 AM

The Linux kernel is an open source operating system kernel whose source code is stored in a dedicated code repository. In this article, we will analyze the storage path of the Linux kernel source code in detail, and use specific code examples to help readers better understand. 1. Linux kernel source code storage path The Linux kernel source code is stored in a Git repository called linux, which is hosted at [https://github.com/torvalds/linux](http

How to view java source code How to view java source code Dec 27, 2023 pm 04:41 PM

View steps: 1. Find the installation directory or view online; 2. Unzip the source code; 3. Use a text editor or integrated development environment; 4. Navigate and view the source code. Detailed introduction: 1. Find the installation directory or view online: If JDK is installed, you can find the Java source code in the JDK installation directory. In the JDK installation directory, there is usually a src.zip or similar compressed file, which contains the source code of the Java core class library; it is also possible to view the Java source code online, etc.

What do undefined and null mean? What do undefined and null mean? Nov 20, 2023 pm 02:39 PM

In JavaScript, both undefined and null represent the concept of "nothing": 1. undefined represents an uninitialized variable or a non-existent property. When a variable is declared but no value is assigned to it, the value of the variable is undefined , when accessing properties that do not exist in the object, the returned value is also undefined; 2. null represents an empty object reference. In some cases, the object reference can be set to null to release the memory it occupies.

How to view Tomcat source code How to view Tomcat source code Jan 25, 2024 pm 01:56 PM

Steps to view the Tomcat source code: 1. Download the Tomcat source code; 2. Import the Tomcat source code in IDEA; 3. View the source code; 4. Understand the working principle of Tomcat; 5. Participate in the community and contribute; 6. Precautions; 7. Continuously learn and update; 8. Use tools and plug-ins. Detailed introduction: 1. To download the Tomcat source code, you first need to obtain the source code of Tomcat. You can download the source code package from the official website of Apache Tomcat, etc.

What is the suffix of java source code? What is the suffix of java source code? Dec 27, 2023 pm 04:31 PM

In Java, the suffix for source code files is usually .java. When writing a Java program, a source code file with a .java suffix is ​​created, which contains the Java source code. For example, a simple Java source code file could be named MyClass.java, where MyClass is the name of the class and .java is the suffix of the file.

When to use null and undefined When to use null and undefined Nov 13, 2023 pm 02:11 PM

Both null and undefined indicate a lack of value or an undefined state. Depending on the usage scenario, there are some guiding principles for choosing to use null or undefined: 1. When you need to clearly indicate that a variable is empty or invalid, you can use null; 2. When a variable has been declared but not yet assigned a value, it will be set to undefined by default; 3. When you need to check whether a variable is empty or undefined, use the strict equality operator "===" to determine whether the variable is null or undefined. .

See all articles