FMDB框架的简单使用(swift)

FMDB框架是OC的,在swift中使用,需要创建一个桥接文件转换;在桥接文件中导入FNDB的头文件;

static let shareInstance = SQLiteTool()
    //创建和打开一个数据库
    //如果有就直接打开,如果没有,创建一个再打开
    lazy var db: FMDatabase = {
        let path = "/Users/lizhanpeng/Desktop/dataBase" + "/batac.sqlite"
        let db = FMDatabase(path: path)
        return db
    }()
    //实例化db对象的时候就会默认打开或创建一个数据库
    override init() {
        super.init()
        if db.open(){
            print("打开数据库成功")
        }
    }

    func createTable() -> Void {
        let sql = "create table  t_ball(id integer primary key autoincrement,name text not null,age integer ,score real default 59.0)"

        let result = db.executeUpdate(sql, withArgumentsInArray: nil)
        if result {
            print("创建表格成功")
        }
    }
    func dropTable() -> Void {
        let sql = "drop table if exists t_ball"
        let result = db.executeUpdate(sql, withArgumentsInArray: nil)
        if result {
            print("删除表格成功")
        }
    }
    func insertData() -> Void {
        let sql = "insert into t_ball (name,age,score) values ('Batac',20,100)"
        let result = db.executeUpdate(sql, withArgumentsInArray: nil)
        if result {
            print("插入成功")
        }
    }
    func quaryData() -> Void {

        let sql = "select * from t_ball"
        let resultSet = db.executeQuery(sql, withArgumentsInArray: nil)
        while resultSet.next() {
            let name = resultSet.stringForColumn("name")
            let age = resultSet.intForColumn("age")
            let score = resultSet.doubleForColumn("score")
            print(name,age,score)
        }
    }