房间内的Android数据库视图

Question

我在房间的数据库视图中有一些 sqlite 错误：

@Entity(tableName = "customers")
data class Customer(@PrimaryKey val id: Int, val name : String, val add : String, val gen: 
String ="Hi")
@Entity(tableName = "gender")
data class Gender (@PrimaryKey val id:Int, val gen :String)


@DatabaseView("SELECT " +
    "customers.id, " +
    "customers.name, " +
    "customers.add, "+
    "gender.gen AS gen FROM customers " +
    "LEFT JOIN gender ON customers.id = gender.id")
data class UserDetail(
val id: Int,
val name: String,
val add :String ="",
val gen: String

)


@Dao
interface  UserDAO
{
@Query("select * from UserDetail")
suspend fun getUSers() : List<UserDetail>

@Insert
suspend fun insertCustomer(customer: Customer)


@Insert
suspend fun  insetGender(gen: Gender)

}

LogCat 显示此错误：

e: /Users/****/app/build/tmp/kapt3/stubs/debug/com/dexter/roompractice/UserDetail.java:7: 错误：[SQLITE_ERROR] SQL 错误或丢失数据库（靠近“添加”：语法错误） public final class UserDetail { ^ e: > /Users/****/app/build/tmp/kapt3/stubs/debug/com/dexter/roompractice/UserDAO.java:11: 错误：有问题查询：[SQLITE_ERROR] SQL 错误或缺少数据库（没有这样的表：UserDetail） public abstract java.lang.Object getUSers(@org.jetbrains.annotations.NotNull()

Answer 1

add是一个关键字。 将其更改为address有效。