Android应用程序中的SQL查询添加了不需要的额外文件

Question

我使用android studio开发了一个应用程序。在我的代码中，我在开发的android应用程序中编写了一个SQL查询。 SQL查询似乎是正确的但由于某些原因，它会向列名称添加额外的Filed，如下所示。正如您所看到的，asset_description表中包含单词＆＃34; Text＆＃34;。因为情况不应该如此。

我不知道为什么会发生这种情况

列名如下所示

 //Columns in the Asset Table
    public static final String ASSET_ID = "Assetid";
    public static final String ASSET_Name="asset_name";
    public static final String ASSET_Category ="category";
    public static final String ASSET_PurchaseDate = "Purchase_date";
    public static final String Asset_Cost ="Asset_cost";
    public static final String ASSET_STATUS ="asset_status";
    public static final String ASSET_DESCRIPTION ="assets_description";
    public static final String ASSET_Warrenty ="warrenty";

这是表格创建部分

private static final String CREATE_TABLE_ASSET ="CREATE TABLE" + TABLE_ASSET + "("
            + ASSET_ID + " INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,"
            + ASSET_Name + " TEXT NOT NULL,"
            + ASSET_Category +" TEXT NOT NULL,"
            + CUSTODIAN_ID + " TEXT NOT NULL,"
            + Asset_Cost + " DOUBLE NOT NULL,"
            + ASSET_PurchaseDate + " DATE NULL,"
            + ASSET_STATUS +" TEXT NOT NULL,"
            +  ASSET_DESCRIPTION + "Text NOT NULL,"
            + ASSET_Warrenty +" DATE NOT NULL"+ ");";

Answer 1

您错过了一个空格：

+ ASSET_DESCRIPTION + " TEXT NOT NULL,"