html index page code

Index type1. Unique index: Unique index does not allow two rows to have the same index value2. Primary KEY index: Defining a primary key for a table will automatically create a primary key index, which is a special type of unique index. The primary

An index is a structure that sorts the values of one or more columns in a database table and uses an index to quickly access specific information in a database table.Depending on the capabilities of your database, you can create three indexes in the

Understanding MySQL-index and optimization [Reprinted] bitsCN.com Reprinted from: http://www.cnblogs.com/hustcat/archive/2009/10/28/1591648.html Preface: indexes have a crucial impact on the query speed. understanding indexes is also the starting

Http://www.cnblogs.com/gaizai/archive/2010/01/11/1644358.html   Before I start, I want to talk about several concepts. Overwrite Query] When an index contains all the columns referenced by a query, it is usually called "Overwrite query ". [Index

For an understanding of the index refer to this post:Http://www.cnblogs.com/newpanderking/p/3781043.htmlTypes of indexes and creating posts:http://blog.csdn.net/xluren/article/details/32746183Advantages and disadvantages of the index:MySQL Tutorial:

How many pages are indexed on my site? If you want to know how many pages are indexed on your site, perform a simple test first. Go to Google or other search engines you like and search for your company name. If the company name is a common name

The powerful function of a web application lies in its HyperLink. For example, the link address (URI) pointing to page B is saved on page a, but the problem is exactly here, correctly reference an object. For example, how to reference another HTML

Reprint: http://www.cnblogs.com/mind/archive/2012/04/01/2198995.htmlThe non-expecting overlap error of HTML page elements is encountered many times in the project, most of which is the problem of z-index in the position positioning situation. In

How to Create helpcontextid in HTML Help Workshop, Press F1 in the vbprogram to pop up the corresponding context, the documents in chm format have been written, the tables of context and index file have been written. What should I do next? Please

SummaryThere are many ways to classify elements on a web page. Based on the purpose of this article and the Z-index attribute, we can divide them into two categories: window and non-window. Window Elements• flag Element• ActiveX Control• Plug-ins•