public void TestUpdate()
{
var connection = new System.Data.SqlClient.SqlConnection(@"Data Source=DESKTOP-9IS2HA6\SQLEXPRESS;Initial Catalog=test;Persist Security Info=True;User ID=sa;Password=1024");
using (IDbContext db = new DbProxyContext(connection, DbContextType.SqlServer))
{
var row = 0;
db.Open();//自动提交
var entity1 = new Student()
{
Id = 22,
Balance = 50,
BirthDay = DateTime.Now,
Score = Grade.E,
IsDelete = true,
Name = "faker",
Version = "test",
CreateTime = DateTime.Now,
};
var entity2 = new Student()
{
Id = 24,
Balance = 50,
BirthDay = DateTime.Now,
Score = Grade.E,
IsDelete = true,
Name = "faker",
Version = "test",
CreateTime = DateTime.Now,
};
//1.根据主键字段更新所有列
row = db.From <Student>().Update(entity1);
//2.忽略指定列
row = db.From <Student>().Filter(s => s.Version).Update(entity2);
//3.根据指定条件更新所有列
var oldVersion = "110";
row = db.From <Student>()
.Where(a => a.Id == 25 && a.Version == oldVersion)
.Update(entity1);
//4.批量修改,不推荐使用，
var students = new List <Student>();
students.Add(entity1);
students.Add(entity2);
row = db.From <Student>().Filter(a => a.CreateTime).Update(students);
//5.更新指定字段
row = db.From <Student>()
.Update(s => new Student()
{
Id = 26, //默认通过id更新，可以用where来重置默认
Score = Grade.F,
Name = "hihi"
});
//6.动态更新字段
var charat = "f";
row = db.From <Student>()
.Set(a => a.Balance, 100, 1 > 2) //false
.Set(a => a.IsDelete, true)
.Set(a => a.Balance, a => a.Balance + 200, 1 < 2) //true
.Set(a => a.Name, a => SqlFun.Replace(a.Name, "b", charat)) //true
.Where(a => a.Id == 27)
.Update();
}
}
public void TestUpdate()
{
var connection = new Npgsql.NpgsqlConnection("Server=127.0.0.1;Port=5432;User Id=postgres;Password=1024;Database=test;");
using (IDbContext db = new DbProxyContext(connection, DbContextType.Postgresql))
{
var row = 0;
db.Open();//自动提交
var entity1 = new Student()
{
Id = 22,
Balance = 50,
BirthDay = DateTime.Now,
Score = Grade.E,
IsDelete = true,
Name = "faker",
Version = "test",
CreateTime = DateTime.Now,
};
var entity2 = new Student()
{
Id = 24,
Balance = 50,
BirthDay = DateTime.Now,
Score = Grade.E,
IsDelete = true,
Name = "faker",
Version = "test",
CreateTime = DateTime.Now,
};
//1.根据主键字段更新所有列
row = db.From <Student>().Update(entity1);
//2.忽略指定列
row = db.From <Student>().Filter(s => s.Version).Update(entity2);
//3.根据指定条件更新所有列
var oldVersion = "110";
row = db.From <Student>()
.Where(a => a.Id == 25 && a.Version == oldVersion)
.Update(entity1);
//4.批量修改,不推荐使用，
var students = new List <Student>();
students.Add(entity1);
students.Add(entity2);
row = db.From <Student>().Filter(a => a.CreateTime).Update(students);
//5.更新指定字段
db.From <Student>()
.Update(s => new Student()
{
Id = 26, //默认通过id更新，可以用where来重置默认
Score = Grade.F,
Name = "hihi"
});
//6.动态更新字段
try
{
var charat = "f";
db.From <Student>()
.Set(a => a.Balance, 100, 1 > 2) //false
.Set(a => a.IsDelete, true)
.Set(a => a.Balance, a => a.Balance + SqlFun.MONEY(200), 1 < 2) //true
.Set(a => a.Name, a => SqlFun.Replace(a.Name, "b", charat)) //true
.Where(a => a.Id == 27)
.Update();
}
catch (Exception e)
{
throw;
}
}
}
public void TestUpdate()
{
var sb = new System.Data.SQLite.SQLiteConnectionStringBuilder();
sb.DataSource = "D:\\sqlite.db3";
var connection = new System.Data.SQLite.SQLiteConnection(sb.ConnectionString);
using (IDbContext db = new DbProxyContext(connection, DbContextType.Sqlite))
{
var row = 0;
db.Open();//自动提交
var entity1 = new Student()
{
Id = 22,
Balance = 50,
BirthDay = DateTime.Now,
Score = Grade.E,
IsDelete = true,
Name = "faker",
Version = "test",
CreateTime = DateTime.Now,
};
var entity2 = new Student()
{
Id = 24,
Balance = 50,
BirthDay = DateTime.Now,
Score = Grade.E,
IsDelete = true,
Name = "faker",
Version = "test",
CreateTime = DateTime.Now,
};
//1.根据主键字段更新所有列
row = db.From <Student>().Update(entity1);
//2.忽略指定列
row = db.From <Student>().Filter(s => s.Version).Update(entity2);
//3.根据指定条件更新所有列
var oldVersion = "110";
row = db.From <Student>()
.Where(a => a.Id == 25 && a.Version == oldVersion)
.Update(entity1);
//4.批量修改,不推荐使用，
var students = new List <Student>();
students.Add(entity1);
students.Add(entity2);
row = db.From <Student>().Filter(a => a.CreateTime).Update(students);
//5.更新指定字段
db.From <Student>()
.Update(s => new Student()
{
Id = 26, //默认通过id更新，可以用where来重置默认
Score = Grade.F,
Name = "hihi"
});
//6.动态更新字段
var charat = "f";
db.From <Student>()
.Set(a => a.Balance, 100, 1 > 2) //false
.Set(a => a.IsDelete, true)
.Set(a => a.Balance, a => a.Balance + 200, 1 < 2) //true
.Set(a => a.Name, a => SqlFun.Replace(a.Name, "b", charat)) //true
.Where(a => a.Id == 27)
.Update();
}
}
