#Contact information
Email 610262374@qq.com QQ Group 225982985
#Other versions
ASP.NET 4.0+ MSSQL https://github.com/sunkaixuan/SqlSugar
ASP.NET 4.0+ MYSQL https://github.com/sunkaixuan/MySqlSugar
ASP.NET 4.0+ Sqlite https://github.com/sunkaixuan/SqliteSugar
ASP.NET 4.0+ ORACLE https://github.com/sunkaixuan/OracleSugar
using (var db = new SqlSugarClient("sever=.;sa=saxxxxxxxx"))
{
//select all
var student = db.Queryable<Student>().ToList();
var studentDynamic = db.Queryable<Student>().ToDynamic();
var studentJson = db.Queryable<Student>().ToJson();
//select single
var single = db.Queryable<Student>().Single(c => c.id == 1);
//select single return null
var single2 = db.Queryable<Student>().Where(c => c.id == 1).SingleOrDefault();
//top 1
var first = db.Queryable<Student>().Where(c => c.id == 1).First();
var first2 = db.Queryable<Student>().Where(c => c.id == 1).FirstOrDefault();
//10-20
var page1 = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).Skip(10).Take(20).ToList();
//page
var page2 = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).ToPageList(2, 10);
//count
var count = db.Queryable<Student>().Where(c => c.id > 10).Count();
//skip 2
var skip = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).Skip(2).ToList();
//top 2
var take = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).Take(2).ToList();
// Not like
string conval = "a";
var notLike = db.Queryable<Student>().Where(c => !c.name.Contains(conval.ToString())).ToList();
//Like
conval = "三";
var like = db.Queryable<Student>().Where(c => c.name.Contains(conval)).ToList();
// Where
var convert1 = db.Queryable<Student>().Where(c => c.name == "a".ToString()).ToList();
var convert2 = db.Queryable<Student>().Where(c => c.id == Convert.ToInt32("1")).ToList();//
var convert3 = db.Queryable<Student>().Where(c => DateTime.Now > Convert.ToDateTime("2015-1-1")).ToList();
var convert4 = db.Queryable<Student>().Where(c => DateTime.Now > DateTime.Now).ToList();
//where string
var student12 = db.Queryable<Student>().Where(c => "a" == "a").Where("id>100").ToList();
var student13 = db.Queryable<Student>().Where(c => "a" == "a").Where("id>100 and id in( select 1)").ToList();
//any
bool isAny100 = db.Queryable<Student>().Any(c => c.id == 100);
bool isAny1 = db.Queryable<Student>().Any(c => c.id == 1);
//max Id
object maxId = db.Queryable<Student>().Max(it => it.id);
int maxId1 = db.Queryable<Student>().Max(it => it.id).ObjToInt();
int maxId2 = db.Queryable<Student>().Max<Student, int>("id");
//min id
int minId1 = db.Queryable<Student>().Where(c => c.id > 0).Min(it => it.id).ObjToInt();
int minId2 = db.Queryable<Student>().Where(c => c.id > 0).Min<Student, int>("id");
//order by
var orderList = db.Queryable<Student>().OrderBy("id desc,name asc").ToList();
//multiple order by
var order2List = db.Queryable<Student>().OrderBy(it=>it.name).OrderBy(it => it.id, OrderByType.desc).ToList();
// order by name as ,order by id desc
//in
var intArray=new []{"5", "2", "3"};
var intList = intArray.ToList();
var list0 = db.Queryable<Student>().In(it => it.id, 1,2,3).ToList();
var list1 = db.Queryable<Student>().In(it=>it.id, intArray).ToList();
var list2 = db.Queryable<Student>().In("id", intArray).ToList();
var list3 = db.Queryable<Student>().In(it => it.id, intList).ToList();
var list4 = db.Queryable<Student>().In("id", intList).ToList();
//group by
var list7 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).Select("sex,Count=count(*)").ToDynamic();
var list8 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).GroupBy(it=>it.id).Select("id,sex,Count=count(*)").ToDynamic();
List<SexTotal> list5 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).Select<Student, SexTotal>("Sex,Count=count(*)").ToList();
List<SexTotal> list6 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy("sex").Select<Student, SexTotal>("Sex,Count=count(*)").ToList();
//SELECT Sex,Count=count(*) FROM Student WHERE 1=1 AND (id < 20) GROUP BY Sex
//join
var jList = db.Queryable<Student>()
.JoinTable<Student, School>((s1, s2) => s1.sch_id == s2.id) //默认left join
.Where<Student, School>((s1, s2) => s1.id == 1)
.Select("s1.*,s2.name as schName")
.ToDynamic();
//join by page
var jList2 = db.Queryable<Student>()
.JoinTable<Student, School>((s1, s2) => s1.sch_id == s2.id) //default left join
//inner join
//.JoinTable<Student, School>((s1, s2) => s1.sch_id == s2.id ,JoinType.INNER)
.Where<Student, School>((s1, s2) => s1.id > 1)
.OrderBy<Student, School>((s1, s2) => s1.name)
.Skip(10)
.Take(20)
.Select("s1.*,s2.name as schName")
.ToDynamic();
//join select new
var jList3 = db.Queryable<Student>()
.JoinTable<Student, School>((s1, s2) => s1.sch_id == s2.id) // left join School s2 on s1.id=s2.id
.Where<Student, School>((s1, s2) => s1.id > 1) // where s1.id>1
.OrderBy<Student, School>((s1, s2) => s1.id) //order by s1.id no one ordder .oderBy().orderby
.Skip(1)
.Take(2)
.Select<Student, School, classNew>((s1, s2) => new classNew() { newid = s1.id, newname = s2.name, xx_name = s1.name })
.ToList();
}
using (var db = SqlSugarClient("sever=.;sa=saxxxxxxxx"))
{
//select multiple table
List<School> dataList = db.Sqlable()
.From("school", "s")
.Join("student", "st", "st.id", "s.id", JoinType.INNER)
.Join("student", "st2", "st2.id", "st.id", JoinType.LEFT)
.Where("s.id>100 and s.id<@id")
.Where("1=1")
.OrderBy("id")
.SelectToList<School/*new model*/>("st.*", new { id = 1 });
//page
List<School> dataPageList = db.Sqlable()
.From("school", "s")
.Join("student", "st", "st.id", "s.id", JoinType.INNER)
.Join("student", "st2", "st2.id", "st.id", JoinType.LEFT)
.Where("s.id>100 and s.id<100")
.SelectToPageList<School>("st.*", "s.id", 1, 10);
//page
List<School> dataPageList2 = db.Sqlable()
.From("school", "s")
.Join("student", "st", "st.id", "s.id", JoinType.INNER)
.Join("student", "st2", "st2.id", "st.id", JoinType.LEFT)
.Where("s.id>100 and s.id<100 and s.id in (select 1 )" )
.SelectToPageList<School>("st.*", "s.id", 1, 10);
//--------Convert List Dynmaic OR Json-----//
var list1 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToDynamic("*", new { id = 1 });
var list2 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToJson("*", new { id = 1 });
var list3 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToDataTable("*", new { id = 1 });
var list4 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToPageDynamic("s.*", "l.id", 1, 10, new { id = 1 });
var list5 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToPageTable("s.*", "l.id", 1, 10, new { id = 1 });
var list6 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToPageDynamic("s.*", "l.id", 1, 10, new { id = 1 });
//--------Assemble OBJECT-----//
Sqlable sable = db.Sqlable().From<Student>("s").Join<School>("l", "s.sch_id", "l.id", JoinType.INNER);
string name = "a";
int id = 1;
if (!string.IsNullOrEmpty(name))
{
sable = sable.Where("s.name=@name");
}
if (!string.IsNullOrEmpty(name))
{
sable = sable.Where("s.id=@id or s.id=100");
}
if (id > 0)
{
sable = sable.Where("l.id in (select top 10 id from school)");//where in
}
var pars = new { id = id, name = name };
int pageCount = sable.Count(pars);
var list7 = sable.SelectToPageList<Student>("s.*", "l.id desc", 1, 20, pars);
}
//ToList
List<Student> list1 = db.SqlQuery<Student>("select * from Student");
//ToList with parameters
List<Student> list2 = db.SqlQuery<Student>("select * from Student where id=@id", new { id = 1 });
//To Dynamic
dynamic list3 = db.SqlQueryDynamic("select * from student");
//To Json
string list4 = db.SqlQueryJson("select * from student");
//get int
var list5 = db.SqlQuery<int>("select top 1 id from Student").SingleOrDefault();
//get dictionary
Dictionary<string, string> list6 = db.SqlQuery<KeyValuePair<string, string>>("select id,name from Student").ToDictionary(it => it.Key, it => it.Value);
//get array
var list7 = db.SqlQuery<string[]>("select top 1 id,name from Student").SingleOrDefault();
//exex sp
var spResult = db.SqlQuery<School>("exec sp_school @p1,@p2", new { p1 = 1, p2 = 2 });
//get frist row frist column
string v1 = db.GetString("select '张三' as name");
int v2 = db.GetInt("select 1 as name");
double v3 = db.GetDouble("select 1 as name");
decimal v4 = db.GetDecimal("select 1 as name");
#select new
var list2 = db.Queryable<Student>().Where(c => c.id < 10).Select(c => new classNew { newid = c.id, newname = c.name, xx_name = c.name }).ToList();//
var list3 = db.Queryable<Student>().Where(c => c.id < 10).Select(c => new { newid = c.id, newname = c.name, xx_name = c.name }).ToDynamic();//
var list4 = db.Queryable<Student>().Where(c => c.id < 10).Select("id as newid, name as newname ,name as xx_name").ToDynamic();//
#Insert
Student s = new Student()
{
name = "张" + new Random().Next(1, int.MaxValue)
};
db.Insert(s);
List<Student> list = new List<Student>()
{
new Student()
{
name="张"+new Random().Next(1,int.MaxValue)
},
new Student()
{
name="张"+new Random().Next(1,int.MaxValue)
}
};
db.InsertRange(list);
#Update //Specify column update db.Update(new { name = "蓝翔2" }, it => it.id == id); db.Update<School, int>(new { name = "蓝翔2" }, 1, 3, 12); db.Update<School, string>(new { name = "蓝翔2" }, new string[] { "1", "2" });
//update object
db.Update(new School { id = id, name = "蓝翔2" });
db.Update<School>(new School { id = id, name = "蓝翔2" }, it => it.id == id);
// setting disable Update Columns
db.DisableUpdateColumns = new string[] { "CreateTime" };//设置CreateTime不更新
TestUpdateColumns updObj = new TestUpdateColumns()
{
VGUID = Guid.Parse("542b5a27-6984-47c7-a8ee-359e483c8470"),
Name = "xx",
Name2 = "xx2",
IdentityField = 0,
CreateTime = null
};
//CreateTime no update
db.Update(updObj);
#Delete
//delete
db.Delete<School, int>(10);
db.Delete<School>(it => it.id > 100);
db.Delete<School, string>(new string[] { "100", "101", "102" });
//false delte
//db.FalseDelete<school>("is_del", 100);
//sql = update school set is_del=0 where id in(100)
//db.FalseDelete<school>("is_del", it=>it.id==100);
#Transaction
db.IsNoLock = true;// with (nolock)
db.CommandTimeOut = 30000;
try
{
db.BeginTran();
//db.BeginTran(IsolationLevel.ReadCommitted);+3
db.CommitTran();
}
catch (Exception)
{
db.RollbackTran();
throw;
}