Retrieving image from SQLite Database (BLOB data type)

I have tried to retrieve the byte[] from my SQLite DB using the code: public byte[] getImageData() throws SQLException{ SQLiteDatabase db = this.getReadableDatabase(); Cursor cursor = db….

i cant update value in SQLite

I have this table to sqlite: public static final String TABLA_PARA_SEGUIR = “CREATE TABLE ” + TABLA_SEGUIR + “(” + ID_ELEMENTO + ” INTEGER PRIMARY KEY …

android.database.sqlite.SQLiteConstraintException: UNIQUE constraint failed Couldnot figure out what the error says

I have got stuck in the above-mentioned error message in Android Studio. My Database is a simple one 1st column: Name TEXT PRIMARY KEY 2nd column: Price TEXT I have already gone through the answers to …

SharedPreferences vs SQLite Database vs Room Database, which should I use for my project and why? Pros and Cons [closed]

I have a custom ListView of Semesters, a Semester is an object, in the MainActivity of an app I’m developing to learn more about Android developing and databases. That ListView is created by the user …

Room compile problem – column references a foreign key but it is not part of an index

I’m new to android app development and am creating an app that has Trips which stores Locations. I’m getting a compile error :”trip_Id column references a foreign key but it is not part of an index. …

Why don’t my data insert into SQLite database on android?

I’m creating a simple todo list. So, I have activity (NewTaskActivity) Xml code: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/…

Android Room Persistence Library : What is the best way to implement a many to many relation?

I used to use Realm and I am currently testing Room in order to compare both tools. I am trying to implement the following many to many relation : Here my Entity classes : The Person : @Entity(…