将数据从Sqlite迁移到Realm可以通过以下步骤实现:
以下是对以上步骤的进一步解释:
sqlite3 -header -csv your_database.db "SELECT * FROM your_table;" > data.csv
class Person: Object {
@objc dynamic var id = 0
@objc dynamic var name = ""
@objc dynamic var age = 0
}
import RealmSwift
let data = try! String(contentsOfFile: "data.csv")
let lines = data.components(separatedBy: "\n")
var persons = [Person]()
for line in lines {
let fields = line.components(separatedBy: ",")
let person = Person()
person.id = Int(fields[0]) ?? 0
person.name = fields[1]
person.age = Int(fields[2]) ?? 0
persons.append(person)
}
import RealmSwift
let realm = try! Realm()
try! realm.write {
realm.add(persons)
}
请注意,以上代码示例是基于Swift编程语言的,如果您使用其他编程语言,可能需要相应地进行适配和调整。
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