UNIQUE constraint failed: sqlite database : android

Question

I am trying to insert values in table. But there is only one value inserted. I am getting an error in log cat when I am trying to insert new values.

Log cat shows :

Answer 1

make id column id integer autoincrement, and do not put the id value into content values.

Answer 2

The table has a unique constraint on it. That means that only one row can exist with a given ID value. If you're trying to change some of the values for a row, use UPDATE not INSERT. If you're trying to add this row, you need to either give it a different, unique ID or you need to delete the pre-existing row first. Which of these is the right answer depends on what your app is doing.

Answer 3

I originally put the new unique constraint infant of the old one. Instead make sure you're current unique column is first:

CREATE TABLE TEST (client_id TEXT unique, remote_id INT unique)

Answer 4

I had the same problem and the problem was that I forgot to add db.execSQL(YOUR_TABLE); in my DbHelper

Answer 5

If you use Room then instead of @PrimaryKey you should use @PrimaryKey(autoGenerate = true)

and make your id variable optional:

@Entity(tableName = "contact_table") data class Contact(@PrimaryKey(autoGenerate = true) @ColumnInfo(name = "id") var id: Long?, @ColumnInfo(name = "name") val name: String, @ColumnInfo(name = "phone") val phone: String)

and then when adding a new item, pass null as id, insert func will return new id, add it to your object

val contact = Contact(null, name, phone)
contact.id = ContactRoomDatabase.getDatabase().contactDao().insert(contact)

Answer 6

My mistake was, I tried to fill ID column though it was defined already as a INTEGER PRIMARY KEY AUTOINCREMENT