Question

在Android中，我很难找到以下查询的问题。编码似乎是正确的。我正在尝试以下代码段：

 DATABASE_TABLES.add("CREATE TABLE PageRights("
                +"RightsId INTEGER NOT NULL,"
                +"PageName varchar(-1) NULL,"
                +"PageId INTEGER NOT NULL,"
                +"UserId INTEGER NOT NULL,"
                +"RoleId INTEGER NOT NULL,"
                +"Add BOOLEAN NOT NULL,"
                +"Edit BOOLEAN NULL,"
                +"Delete BOOLEAN NULL,"
                +"CreatedBy varchar(-1) NULL,"
                +"CreatedDate DATE NOT NULL,"
                +"Views BOOLEAN NULL)");

抛出的错误是;

android.database.sqlite.SQLiteException: near "Add": syntax error (code 1): , while compiling: CREATE TABLE PageRights(RightsId INTEGER NOT NULL,PageName varchar(-1) NULL,PageId INTEGER NOT NULL,UserId INTEGER NOT NULL,RoleId INTEGER NOT NULL,Add BOOLEAN NOT NULL,Edit BOOLEAN NULL,Delete BOOLEAN NULL,CreatedBy varchar(-1) NULL,CreatedDate DATE NOT NULL,Views BOOLEAN NULL)

请通过提出你的想法来帮助我。

Answer 1

Add，Edit，Delete是预定义的关键字，请按照以下方式使用，

DATABASE_TABLES.add("CREATE TABLE PageRights("
                +"RightsId INTEGER NOT NULL,"
                +"PageName varchar(-1) NULL,"
                +"PageId INTEGER NOT NULL,"
                +"UserId INTEGER NOT NULL,"
                +"RoleId INTEGER NOT NULL,"
                +"Add_PageRights BOOLEAN NOT NULL,"
                +"Edit_PageRights BOOLEAN NULL,"
                +"Delete_PageRights BOOLEAN NULL,"
                +"CreatedBy varchar(-1) NULL,"
                +"CreatedDate DATE NOT NULL,"
                +"Views BOOLEAN NULL)");

请访问Oracle naming standards tips。

Answer 2

android.database.sqlite.SQLiteException：near＆＃34; Add＆＃34;

Add是MySQL中的保留字。顺便说一下，Edit和Delete也是如此。

将这些列的名称更改为其他名称。

未创建Android数据库表

2 个答案: