In my project I have used ORMLite. Now I added a primary key for tje accountId
field and also have changed DB Version. Please help me, I don't know how to write query in onUpgrade(...)
. For reference I have attached Account
class below.
public class Account implements Serializable {
@DatabaseField
private String cdate;
@DatabaseField(id=true)
private Integer accountId;
@DatabaseField
private String Type;
@DatabaseField
private String Desc;
@DatabaseField
private String UpdatedDate;
}
I don't know how to write query in onUpgrade(...).
The trick is to figure out what Sqlite commands you need to make to add a primary key. You can figure this out by looking at the Sqlite docs for the primary key . There you can see that your accountId
field should be defined as:
accountId INTEGER PRIMARY KEY ASC
So then your onUpdate(...)
method should be something like:
if (version of db is the old-version) {
dao.executeRaw("ALTER TABLE account ADD COLUMN accountId INTEGER PRIMARY KEY ASC;");
}
You should do this conditionally based on the old version of the DB.
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