window opendatabase not function

Guo Zongbao, software engineer, IBM Introduction:Web encourages personal participation. Everyone is the author of web content. If the web application can provide offline functions and allow users to write content in areas without a network (such as

This article mainly introduces HTML5 Storage functions and webSQL related operations, including the use of Storage attributes and the use of JavaScript For webSQL operations, for more information, see html5. two mechanisms are introduced, similar to

Browser cache (Browser Caching) is a browser-side save data for fast read or avoid duplicate resource request optimization mechanism, effective cache use can avoid duplicate network requests and the browser quickly read local data, the overall

HTML5 Offline Feature IntroductionHTML5 is a new generation of HTML standards currently being discussed, representing the latest developments in the Web world. In the HTML5 standard, a new variety of content description tags are added, which

Window. ActiveXObject) to determine whether the browser supports ActiveX controls, and if you support ActiveX controls, we can use Varxml=newactivexobject ("Microsoft.XMLHTTP") To create the XMLHttpRequest object (this is in a previous version of IE7

Browser cache (Browser Caching) is a browser-side save data for fast read or avoid duplicate resource request optimization mechanism, effective cache use can avoid duplicate network requests and the browser quickly read local data, the overall

A long time ago wrote a text, in the floppy disk for n years. --Philips floppy disk quality is good:) aphismail-job#yahoo.com.cn I learn VB has two or three years of time, beginners, encountered a lot of difficulties, no less in the BBS to ask

Storage-related objects in phonegap includeDatabase objectsSQLTransaction objectSQLResultSet SQL result objectSQLResultSetListSQLError SQL error objectLocalStorage local storage objects Database objects:Obtain the object using the openDatabase

HTML5 Web SQL for offline storageThis article does not consider asynchronous, multithreaded, and SQL injectionThe WEBDATABASE specification says the specification is no longer maintained, because homogenization (almost all of them have chosen SQLite)

This document describes four common methods:1. Use Excel objects to process files;2. Use VBA file processing statements to process files;3. Use the FileSystemObject object to process files;4. Use API functions to process files. Of course, you can