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title: 资料库
---
# 资料库
提供对 SQL 资料库的访问。
## 方法
* **交易记录**： 运行资料库事务。
* **changeVersion**: 允许脚本自动验证的版本号和更新架构时更改它。
## 详细资讯
`window.openDatabase()`方法返回 `Database` 的物件。
## 支援的平台
* Android 系统
* 黑莓手机 WebWorks （OS 6.0 和更高）
* iOS
* Tizen
## 交易快速示例
function populateDB(tx) {
tx.executeSql('DROP TABLE IF EXISTS DEMO');
tx.executeSql('CREATE TABLE IF NOT EXISTS DEMO (id unique, data)');
tx.executeSql('INSERT INTO DEMO (id, data) VALUES (1, "First row")');
tx.executeSql('INSERT INTO DEMO (id, data) VALUES (2, "Second row")');
}
function errorCB(err) {
alert("Error processing SQL: "+err.code);
}
function successCB() {
alert("success!");
}
var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
db.transaction(populateDB, errorCB, successCB);
## 更改版本快速示例
var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
db.changeVersion("1.0", "1.1");
## 完整的示例
Storage Example
Example
Database