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Update Demo
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sunkaixuan
441
Src/Asp.Net/OracleTest/OldTest/Demos/1_Query.cs
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441
Src/Asp.Net/OracleTest/OldTest/Demos/1_Query.cs
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@@ -0,0 +1,441 @@
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using OrmTest.Models;
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using SqlSugar;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace OrmTest.Demo
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{
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public class Query : DemoBase
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{
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public static void Init()
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{
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Easy();
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Page();
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Where();
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Join();
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Funs();
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Select();
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Ado();
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Group();
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Sqlable();
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Tran();
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//StoredProcedure();
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Enum();
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Simple();
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SqlTest();
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Subqueryable();
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}
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private static void SqlTest()
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{
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var db = GetInstance();
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var x = db.Ado.ExecuteCommand("select '@id' as id from student where id=@id",new { id=1});
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}
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private static void Subqueryable()
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{
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var db = GetInstance();
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var i = 0;
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var getAll11 = db.Queryable<Student>().Where(it => SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Max(s => s.Id) == i).ToList();
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var getAll12 = db.Queryable<Student>().Where(it => SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Max(s => s.Id) == 1).ToList();
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var getAll7 = db.Queryable<Student>().Where(it => SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Any()).ToList();
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var getAll9 = db.Queryable<Student>().Where(it => SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Count() == 1).ToList();
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//var getAll10 = db.Queryable<Student>().Where(it => SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).OrderBy(s => s.Id).Select(s => s.Id) == 1).ToList();
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//var getAll14 = db.Queryable<Student>().Where(it => SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).OrderByDesc(s => s.Id).Select(s => s.Id) == 1).ToList();
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var getAll8 = db.Queryable<Student>().Where(it => SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Where(s => s.Name == it.Name).NotAny()).ToList();
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var getAll1 = db.Queryable<Student>().Where(it => it.Id == SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Select(s => s.Id)).ToList();
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var getAll2 = db.Queryable<Student, School>((st, sc) => new object[] {
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JoinType.Left,st.Id==sc.Id
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})
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.Where(st => st.Id == SqlFunc.Subqueryable<School>().Where(s => s.Id == st.Id).Select(s => s.Id))
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.ToList();
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var getAll3 = db.Queryable<Student, School>((st, sc) => new object[] {
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JoinType.Left,st.Id==sc.Id
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})
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.Select(st =>
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new
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{
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name = st.Name,
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id = SqlFunc.Subqueryable<School>().Where(s => s.Id == st.Id).Select(s => s.Id)
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})
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.ToList();
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var getAll4 = db.Queryable<Student>().Select(it =>
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new
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{
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name = it.Name,
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id = SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Select(s => s.Id)
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}).ToList();
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var getAll5 = db.Queryable<Student>().Select(it =>
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new Student
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{
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Name = it.Name,
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Id = SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Select(s => s.Id)
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}).ToList();
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}
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private static void Simple()
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{
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//SqlSugarClient
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var db = GetInstance();
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var student1 = db.Queryable<Student>().InSingle(1);
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//get SimpleClient
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var sdb = db.SimpleClient;
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var student2 = sdb.GetById<Student>(1);
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sdb.DeleteById<Student>(1);
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sdb.Insert(new Student() { Name = "xx" });
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sdb.Update<Student>(it => new Student { Name = "newvalue" }, it => it.Id == 1);//only update name where id=1
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sdb.Update(new Student() { Name="newavalue" ,Id=1});//update all where id=1
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//SimpleClient Get SqlSugarClient
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var student3=sdb.FullClient.Queryable<Student>().InSingle(1);
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}
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private static void StoredProcedure()
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{
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var db = GetInstance();
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object outPutValue;
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var outputResult = db.Ado.UseStoredProcedure<dynamic>(() =>
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{
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string spName = "SpGetSchool";
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var p1 = new SugarParameter("@id_in", "1");
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var p2 = new SugarParameter("@name_out", null, true);//isOutput=true
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var dbResult = db.Ado.ExecuteCommand(spName, new SugarParameter[] { p1, p2 });
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outPutValue = p2.Value;
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return dbResult;
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});
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}
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private static void Tran()
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{
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var db = GetInstance();
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var x=db.Insertable(new Student() { CreateTime = DateTime.Now, Name = "tran" }).ExecuteCommand();
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//1. no result
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var result = db.Ado.UseTran(() =>
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{
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var beginCount = db.Queryable<Student>().ToList();
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db.Ado.ExecuteCommand("delete student");
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var endCount = db.Queryable<Student>().Count();
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throw new Exception("error haha");
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});
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var count = db.Queryable<Student>().Count();
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//2 has result
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var result2 = db.Ado.UseTran<List<Student>>(() =>
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{
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return db.Queryable<Student>().ToList();
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});
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//3 use try
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try
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{
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db.Ado.BeginTran();
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db.Ado.CommitTran();
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}
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catch (Exception)
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{
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db.Ado.RollbackTran();
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throw;
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}
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}
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private static void Group()
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{
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var db = GetInstance();
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var list = db.Queryable<Student>()
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.GroupBy(it => it.Name)
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.GroupBy(it => it.Id).Having(it => SqlFunc.AggregateAvg(it.Id) > 0)
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.Select(it => new { idAvg = SqlFunc.AggregateAvg(it.Id), name = it.Name }).ToList();
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var list2 = db.Queryable<Student>()
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.GroupBy(it => new { it.Id, it.Name }).Having(it => SqlFunc.AggregateAvg(it.Id) > 0)
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.Select(it => new { idAvg = SqlFunc.AggregateAvg(it.Id), name = it.Name }).ToList();
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//SQL:
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//SELECT AVG([Id]) AS[idAvg], [Name] AS[name] FROM[Student] GROUP BY[Name],[Id] HAVING(AVG([Id]) > 0 )
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// group id,name take first
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var list3 = db.Queryable<Student>()
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.PartitionBy(it => new { it.Id, it.Name }).Take(1).ToList();
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int count = 0;
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var list4 = db.Queryable<Student, School>((st, sc) => st.SchoolId == sc.Id)
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.PartitionBy(st => new { st.Name }).Take(1).OrderBy(st => st.Id,OrderByType.Desc).Select(st => st).ToPageList(1, 1000, ref count);
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//SqlFunc.AggregateSum(object thisValue)
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//SqlFunc.AggregateAvg<TResult>(TResult thisValue)
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//SqlFunc.AggregateMin(object thisValue)
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//SqlFunc.AggregateMax(object thisValue)
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//SqlFunc.AggregateCount(object thisValue)
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}
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private static void Ado()
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{
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var db = GetInstance();
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//string spName = "PR_TEST";
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//var p1 = new SugarParameter("@O_RESULT", null, true);
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//p1.IsRefCursor = true;
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//var dt3 = db.Ado.UseStoredProcedure().GetDataTable(spName, p1);
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db.Ado.BeginTran();
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var t1 = db.Ado.SqlQuery<string>("select 'a' from dual");
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var t2 = db.Ado.GetInt("select 1 from dual");
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var t3 = db.Ado.GetDataTable("select 1 as id from dual");
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var sqlPage = db.SqlQueryable<Student>("select * from student").ToPageList(1, 2);
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var t4 = db.Ado.GetScalar("select * from student where id in (@id) ", new { id = new List<int>() { 1, 2, 3 } });
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var t5 = db.Ado.GetScalar("select * from student where id in (@id) ", new { id = new int[] { 1, 2, 3 } });
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var t6 = db.Ado.GetScalar("select * from student where id in (@id) ", new SugarParameter("@id", new int[] { 1, 2, 3 }));
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db.Ado.CommitTran();
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//more
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//db.Ado.GetXXX...
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}
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public static void Easy()
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{
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var db = GetInstance();
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var getAll = db.Queryable<Student>().ToList();
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var getAllOrder = db.Queryable<Student>().OrderBy(it => it.Id).OrderBy(it => it.Name, OrderByType.Desc).ToList();
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var getId = db.Queryable<Student>().Select(it => it.Id).ToList();
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var getNew = db.Queryable<Student>().Where(it => it.Id == 1).Select(it => new { id = SqlFunc.IIF(it.Id == 0, 1, it.Id), it.Name, it.SchoolId }).ToList();
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var getAllNoLock = db.Queryable<Student>().With(SqlWith.NoLock).ToList();
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var getByPrimaryKey = db.Queryable<Student>().InSingle(2);
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var getSingleOrDefault = db.Queryable<Student>().Where(it=>it.Id==1).Single();
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var getFirstOrDefault = db.Queryable<Student>().First();
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var getByWhere = db.Queryable<Student>().Where(it => it.Id == 1 || it.Name == "a").ToList();
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var getByFuns = db.Queryable<Student>().Where(it => SqlFunc.IsNullOrEmpty(it.Name)).ToList();
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var sum = db.Queryable<Student>().Select(it => it.SchoolId).ToList();
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var sum2 = db.Queryable<Student,School>((st,sc)=>st.SchoolId==sc.Id).Sum((st,sc) => sc.Id);
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var isAny = db.Queryable<Student>().Where(it => it.Id == -1).Any();
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var isAny2 = db.Queryable<Student>().Any(it => it.Id == -1);
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var getListByRename = db.Queryable<School>().AS("Student").ToList();
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var in1 = db.Queryable<Student>().In(it => it.Id, new int[] { 1, 2, 3 }).ToList();
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var in2 = db.Queryable<Student>().In(new int[] { 1, 2, 3 }).ToList();
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int[] array = new int[] { 1, 2 };
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var in3 = db.Queryable<Student>().Where(it => SqlFunc.ContainsArray(array, it.Id)).ToList();
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var group = db.Queryable<Student>().GroupBy(it => it.Id)
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.Having(it => SqlFunc.AggregateCount(it.Id) > 10)
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.Select(it => new { id = SqlFunc.AggregateCount(it.Id) }).ToList();
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var between = db.Queryable<Student>().Where(it => SqlFunc.Between(it.Id, 1, 20)).ToList();
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// var getTodayList = db.Queryable<Student>().Where(it => SqlFunc.DateIsSame(it.CreateTime, DateTime.Now)).ToList();
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var joinSql = db.Queryable("student", "s").OrderBy("id").Select("id,name").ToPageList(1, 2);
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}
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public static void Page()
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{
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var db = GetInstance();
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var pageIndex = 1;
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var pageSize = 2;
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var totalCount = 0;
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//page
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var page = db.Queryable<Student>().OrderBy(it => it.Id).ToPageList(pageIndex, pageSize, ref totalCount);
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//page join
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var pageJoin = db.Queryable<Student, School>((st, sc) => new object[] {
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JoinType.Left,st.SchoolId==sc.Id
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}).ToPageList(pageIndex, pageSize, ref totalCount);
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//top 5
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var top5 = db.Queryable<Student>().Take(5).ToList();
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//skip5
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var skip5 = db.Queryable<Student>().Skip(5).ToList();
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}
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public static void Where()
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{
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var db = GetInstance();
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//join
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var list = db.Queryable<Student, School>((st, sc) => new object[] {
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JoinType.Left,st.SchoolId==sc.Id
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})
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.Where((st, sc) => sc.Id == 1&&st.CreateTime.Value.Date==DateTime.Now.Date)
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.Where((st, sc) => st.Id == 1)
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.Where((st, sc) => st.Id == 1 && sc.Id == 2).ToList();
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//SELECT [st].[Id],[st].[SchoolId],[st].[Name],[st].[CreateTime] FROM [Student] st
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//Left JOIN School sc ON ( [st].[SchoolId] = [sc].[Id] )
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//WHERE ( [sc].[Id] = @Id0 ) AND ( [st].[Id] = @Id1 ) AND (( [st].[Id] = @Id2 ) AND ( [sc].[Id] = @Id3 ))
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//Where If
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string name = null;
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string name2 = "sunkaixuan";
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var list2 = db.Queryable<Student>()
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.WhereIF(!string.IsNullOrEmpty(name), it => it.Name == name)
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.WhereIF(!string.IsNullOrEmpty(name2), it => it.Name == name2).ToList();
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//join
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var list3 = db.Queryable<Student, School>((st, sc) => new object[] {
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JoinType.Left,st.SchoolId==sc.Id
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})
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.WhereIF(false, (st, sc) => sc.Id == 1)
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.WhereIF(false, (st, sc) => st.Id == 1).ToList();
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}
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public static void Join()
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{
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var db = GetInstance();
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//join 2
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var list = db.Queryable<Student, School>((st, sc) => new object[] {
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JoinType.Left,st.SchoolId==sc.Id
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})
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.Where(st => st.Name == "jack").ToList();
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//join 3
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var list2 = db.Queryable<Student, School, Student>((st, sc, st2) => new object[] {
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JoinType.Left,st.SchoolId==sc.Id,
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JoinType.Left,st.SchoolId==st2.Id
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})
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.Where((st, sc, st2) => st2.Id == 1 || sc.Id == 1 || st.Id == 1).ToList();
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//join return List<ViewModelStudent>
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var list3 = db.Queryable<Student, School>((st, sc) => new object[] {
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JoinType.Left,st.SchoolId==sc.Id
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}).Select((st, sc) => new ViewModelStudent { Name = st.Name, SchoolId = sc.Id }).ToList();
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//join Order By (order by st.id desc,sc.id desc)
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var list4 = db.Queryable<Student, School>((st, sc) => new object[] {
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JoinType.Left,st.SchoolId==sc.Id
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})
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.OrderBy(st => st.Id, OrderByType.Desc)
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.OrderBy((st, sc) => sc.Id, OrderByType.Desc)
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.Select((st, sc) => new ViewModelStudent { Name = st.Name, SchoolId = sc.Id }).ToList();
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//join 2
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var list4_1 = db.Queryable<Student, School>((st, sc) => new object[] {
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JoinType.Left,st.SchoolId==sc.Id&& st.Name == "jack"
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}).ToList();
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//The simple use of Join 2 table
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var list5 = db.Queryable<Student, School>((st, sc) => st.SchoolId == sc.Id).Select((st,sc)=>new {st.Name,st.Id,schoolName=sc.Name}).ToList();
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//join 3 table
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var list6 = db.Queryable<Student, School,School>((st, sc,sc2) => st.SchoolId == sc.Id&&sc.Id==sc2.Id)
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.Select((st, sc,sc2) => new { st.Name, st.Id, schoolName = sc.Name,schoolName2=sc2.Name }).ToList();
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//join 3 table page
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var list7= db.Queryable<Student, School, School>((st, sc, sc2) => st.SchoolId == sc.Id && sc.Id == sc2.Id)
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.Select((st, sc, sc2) => new { st.Name, st.Id, schoolName = sc.Name, schoolName2 = sc2.Name }).ToPageList(1,2);
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//join 3 table page
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var list8 = db.Queryable<Student, School, School>((st, sc, sc2) => st.SchoolId == sc.Id && sc.Id == sc2.Id)
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.OrderBy(st=>st.Id)
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.Select((st, sc, sc2) => new { st.Name, st.Id, schoolName = sc.Name, schoolName2 = sc2.Name }).ToPageList(1, 2);
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var q1 = db.Queryable<Student>().Select(it => new Student()
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{
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Id=it.Id,
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Name="a"
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});
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var q2 = db.Queryable<Student>().Select(it => new Student()
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{
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Id = it.Id,
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Name = "b"
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});
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var unionAllList=db.Union(q1, q2).ToList();
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}
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public static void Funs()
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{
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var db = GetInstance();
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var t1 = db.Queryable<Student>().Where(it => SqlFunc.ToLower(it.Name) == SqlFunc.ToLower("JACK")).ToList();
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var t2 = db.Queryable<Student>().Where(it => SqlFunc.IsNull(it.Name, "nullvalue") == "nullvalue").ToList();
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//SELECT [Id],[SchoolId],[Name],[CreateTime] FROM [Student] WHERE ((LOWER([Name])) = (LOWER(@MethodConst0)) )
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/***More Functions***/
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//SqlFunc.IsNullOrEmpty(object thisValue)
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//SqlFunc.ToLower(object thisValue)
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//SqlFunc.string ToUpper(object thisValue)
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//SqlFunc.string Trim(object thisValue)
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//SqlFunc.bool Contains(string thisValue, string parameterValue)
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//SqlFunc.ContainsArray(object[] thisValue, string parameterValue)
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//SqlFunc.StartsWith(object thisValue, string parameterValue)
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//SqlFunc.EndsWith(object thisValue, string parameterValue)
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//SqlFunc.Equals(object thisValue, object parameterValue)
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//SqlFunc.DateIsSame(DateTime date1, DateTime date2)
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//SqlFunc.DateIsSame(DateTime date1, DateTime date2, DateType dataType)
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//SqlFunc.DateAdd(DateTime date, int addValue, DateType millisecond)
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//SqlFunc.DateAdd(DateTime date, int addValue)
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//SqlFunc.DateValue(DateTime date, DateType dataType)
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//SqlFunc.Between(object value, object start, object end)
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//SqlFunc.ToInt32(object value)
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//SqlFunc.ToInt64(object value)
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//SqlFunc.ToDate(object value)
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//SqlFunc.ToString(object value)
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//SqlFunc.ToDecimal(object value)
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//SqlFunc.ToGuid(object value)
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//SqlFunc.ToDouble(object value)
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//SqlFunc.ToBool(object value)
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//SqlFunc.Substring(object value, int index, int length)
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//SqlFunc.Replace(object value, string oldChar, string newChar)
|
||||
//SqlFunc.Length(object value) { throw new NotImplementedException(); }
|
||||
//SqlFunc.AggregateSum(object thisValue)
|
||||
//SqlFunc.AggregateAvg<TResult>(TResult thisValue)
|
||||
//SqlFunc.AggregateMin(object thisValue)
|
||||
//SqlFunc.AggregateMax(object thisValue)
|
||||
//SqlFunc.AggregateCount(object thisValue)
|
||||
}
|
||||
public static void Select()
|
||||
{
|
||||
var db = GetInstance();
|
||||
db.IgnoreColumns.Add("TestId", "Student");
|
||||
db.Insertable<Student>( new Student() { Name="abc" }).ExecuteCommand();
|
||||
var s1 = db.Queryable<Student>().Select(it => new { Name = it.Name, Student = it }).ToList();
|
||||
var s2 = db.Queryable<Student>().Select(it => new { id = it.Id, w = new { x = it } }).ToList();
|
||||
var s3 = db.Queryable<Student>().Select(it => new { newid = it.Id }).ToList();
|
||||
var s4 = db.Queryable<Student>().Select(it => new { newid = it.Id, obj = it }).ToList();
|
||||
var s44 = db.Queryable<Student>().Where(it=>it.Name.Substring(0,1)=="a").ToList();
|
||||
var s5 = db.Queryable<Student>().Select(it => new ViewModelStudent2 { Student = it, Name = it.Name }).ToList();
|
||||
var s6 = db.Queryable<Student, School>((st, sc) => new object[] {
|
||||
JoinType.Left,st.SchoolId==sc.Id
|
||||
})
|
||||
.OrderBy(st => st.Id, OrderByType.Desc)
|
||||
.OrderBy((st, sc) => sc.Id, OrderByType.Desc)
|
||||
.Select((st, sc) => new { Name = st.Name, SchoolId = sc.Id }).ToList();
|
||||
|
||||
|
||||
var s7 = db.Queryable<Student, School>((st, sc) => new object[] {
|
||||
JoinType.Left,st.SchoolId==sc.Id
|
||||
}).Select((st, sc) => sc).ToList();
|
||||
|
||||
var s8 = db.Queryable<Student, School>((st, sc) => new object[] {
|
||||
JoinType.Left,st.SchoolId==sc.Id
|
||||
})
|
||||
.OrderBy((st, sc) => st.SchoolId)
|
||||
.Select((st, sc) => sc)
|
||||
.Take(1).ToList();
|
||||
}
|
||||
private static void Sqlable()
|
||||
{
|
||||
var db = GetInstance();
|
||||
var join3 = db.Queryable("Student", "st")
|
||||
.AddJoinInfo("School", "sh", "sh.id=st.schoolid")
|
||||
.Where("st.id>:id")
|
||||
.AddParameters(new { id = 1 })
|
||||
.Select("st.*").ToList();
|
||||
//SELECT st.* FROM [Student] st Left JOIN School sh ON sh.id=st.schoolid WHERE st.id>@id
|
||||
}
|
||||
private static void Enum()
|
||||
{
|
||||
var db = GetInstance();
|
||||
var list = db.Queryable<StudentEnum>().AS("Student").Where(it => it.SchoolId == SchoolEnum.HarvardUniversity).ToList();
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user