Android Room数据库容易遇到的问题以及解决方法

 @Query("SELECT * FROM 表名 WHERE 字段A = '1' and 字段B <= :Time " +
            "and 字段B >= :Time and 字段C <= :BTime and 字段C >= :BTime " +
            "and '(' || 字段D is null or 字段D = '' || ')'")
    List selectList(String Time, String BTime);

String sql = "SELECT * FROM 表名 WHERE 字段A = '1' and 字段B <= "+传入的参数+" " +
            "and 字段B >= "+传入的参数+" and 字段C <= "+传入的参数+" and 字段c >= "+传入的参数+" " +
            "and '(' "+" 字段D is null or 字段D = '' "+" ')'"
cursor = db.rawQuery(sql, null);

@Query("SELECT * FROM 表名 WHERE 字段A = '0' order by id desc")
List selectList();

# [Android RoomDatabase Cruash "Cursor window allocation of 4194304 bytes failed"](https://stackoverflow.com/questions/75456123/android-roomdatabase-cruash-cursor-window-allocation-of-4194304-bytes-failed)

android.database.CursorWindowAllocationException: Could not allocate CursorWindow '/data/user/0/cn.xxx.xxx/databases/xxx.db' of size 2097152 due to error -13.
	at android.database.CursorWindow.nativeCreate(Native Method)
	at android.database.CursorWindow.<init>(CursorWindow.java:139)
	at android.database.CursorWindow.<init>(CursorWindow.java:120)
	at android.database.AbstractWindowedCursor.clearOrCreateWindow(AbstractWindowedCursor.java:202)
	at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:147)
	at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:140)
	at yd.d.m(SourceFile:21)
	at cn.xxx.control.y.y0(SourceFile:1)
	at e5.y.p(SourceFile:230)
	at e5.y.l(SourceFile:1)
	at e5.y.E(SourceFile:1)
	at cn.xxx.cluster.classin.viewmodel.SessionViewModel$d.invokeSuspend(SourceFile:42)

@Transaction
@Query("SELECT * FROM 表名 WHERE 字段A = '0' order by id desc")
List selectList();