This is the code for me to insert data into the database. Everything is fine with no errors. I typed everything that I need supposedly.
But somehow I am still not able to insert the data. What is the reason? When I check the database, the table cart
is empty.
public void insertrecord() {
Bundle bundle = this.getIntent().getExtras();
long rowId = bundle.getLong("rowId");
mydb2 = dbhelper.getWritableDatabase();
myCursor2 = mydb2.query(Dbhelper.CART_NAME, allColumns2, "ID_=" + String.valueOf(rowId), null, null, null, null);
myCursor.moveToFirst();
if (!myCursor.isAfterLast()) {
String cartname = (myCursor.getString(myCursor.getColumnIndex(Dbhelper.COLUMN_TITLE)));
mydb2.execSQL("insert into cart(id_, cartRecord) VALUES(" + rowId + ", '" + cartname + "');");
}
}
What are you trying to do?
First you find the row with id_ = rowId
and then if this row exists you want to insert another row with the same id_
?
Isn't this id_
UNIQUE
in the table?
Maybe you should do the opposite, meaning if this id_
does not exist then insert the new row with some value for cartname
:
if (myCursor.getCount() == 0) {
mydb2.execSQL("insert into cart(id_, cartRecord) VALUES(" + rowId + ", '" + cartname + "');");
}
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