SQLite 设置主键

 CREATE TABLE db_User(
	[Id] INTEGER PRIMARY KEY,
	[UserName] [nvarchar](50),
	[Phone] [nvarchar](50),
	[Deleted] [int],
	[PostTime] [datetime]
)

主键后面加 INTEGER PRIMARY KEY

增加数据时，针对主键列，不赋值，主键列会自动增长