sqflite with flutter create table problem - database

Question

I have a problem with my code, I wrote simple flutter app which is create account for persons and save person information in sqlite database, but when I create tables it gave me errors this is my code and error:
my code:
Future<Database> openDb() async {
if (db == null) {
// get path of database
final pathdb = await getDatabasesPath();
final path = join(pathdb, 'roznamcha.db');
db = await openDatabase(path,
// create tables
onCreate: (Database database, int version) async {
await database.execute('''
CREATE TABLE account (
accountNumber INTEGER PRIMARY KEY AUTOINCREMENT,
name VARCHAR(64) NOT NULL,
telphone VARCHAR(10) NOT NULL,
address VARCHAR(100),
issueDate DATETIME,
balance INTEGER,
image VARCHAR(255),
type VARCHAR(64),
)''');
// transaction table
await database.execute('''
CREATE TABLE transaction (
transactionNumber INTEGER PRIMARY KEY AUTOINCREMENT,
description TEXT NOT NULL,
issueDate DATETIME NOT NULL,
credit INTEGER,
debit INTEGER,
accountNum INTEGER,
record BOOLEAN DEFAULT false,
rate INTEGER NOT NULL
)''');
}, version: 1);
}
return db;
}
error :
Exception has occurred. SqfliteDatabaseException
(DatabaseException(near ")": syntax error (code 1 SQLITE_ERROR): ,
while compiling: CREATE TABLE account (
accountNumber INTEGER PRIMARY KEY AUTOINCREMENT,
name VARCHAR(64) NOT NULL,
telphone VARCHAR(10) NOT NULL,
address VARCHAR(100),
issueDate DATETIME,
balance INTEGER,
image VARCHAR(255),
type VARCHAR(64),
)) sql ' CREATE TABLE account (
accountNumber INTEGER PRIMARY KEY AUTOINCREMENT,
name VARCHAR(64) NOT NULL,
telphone VARCHAR(10) NOT NULL,
address VARCHAR(100),
issueDate DATETIME,
balance INTEGER,
image VARCHAR(255),
type VARCHAR(64),
)' args []})