sql query to linq converter online

Label:From C # in Depth (3rd)-Jon Skeet using (Linqdemodatacontext db = new Linqdemodatacontext ()) { var filtered = from P in db. Products joins s in Db. Suppliers on p.supplierid equals S.supplierid where P.price > s.name, p.name select new {s Uppliername = s.name, ProductName = p.name}; foreach (Var v in filtered) { Console.WriteLine ("Supplier={0}; Product={1} ", v.suppliername, v.productname); } } 　　 That's impressive enough, but if you ' re performance-conscious, you'll be wonderingWhy

Tags: block UPN CTE SEL ext GES log Technology share Ror 1 varquery = fromT0inchcontext. Expresssendmaster2Join T1inchcontext. Supplier on T0. Suppliercode equals T1. Suppliercode3Join T2inchcontext. Expresssendpackagerule on T0. Areaid equals T2. Id into T0_join4 fromT0_t2inchT0_join. DefaultIfEmpty ()5 whereT0. Id = =MasterID6 Select NewExpresspackageofflinemodel7 { 8Packweight =t0. Weight,9Suppliercode =t1. Suppliercode,TenSupplierName =t1. Name, OneSenddate =t0. Senddate, AOneselfnumber =t0

(configurationmanager.connectionstrings["db2016connectionstring"]. Connectionstring.tostring ()); News Info=NewNews (); Info.content=TextBox1.Text; LqDB.news.InsertOnSubmit (info); Lqdb.submitchanges (); Page.ClientScript.RegisterStartupScript (GetType (),"","alert (' Publish Success '); Location.href= ' Default.aspx '",true); } } modifying data protected voidPage_Load (Objectsender, EventArgs e) {Linqdbdatacontext lqdb=NewLinqdbdatacontext (configurationmanager.connec

Auxiliary classes1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.Linq;4 usingSystem.Linq.Expressions;5 usingSystem.Text;6 usingSystem.Threading.Tasks;7 8 namespaceDrision.Framework.Logic.NYZF9 {Ten Public Static classPredicatebuilder One { A Public StaticExpressionBOOL>> truereturnf =true; } - Public StaticExpressionBOOL>> falsereturnf =false; } - the Public StaticExpressionBOOL>> or ThisExpressionBOOL>>Expr1, -ExpressionBOOL>>expr2) - {

criteria, and the corresponding grouping is found. However, the intermediate table we get is the group number. Then we have to convert the corresponding time according to the group number: Logtime=group_num*5/1440+to_date (date, ' Yyyy-mm-dd ') So: SELECT (To_date (DATE, ' yyyy-mm-dd hh24:mi ') + Group_num * 5/(each)) LogTimeSo we can query the condition by the point of time 1. The specific SQL statement

(0.00sec) then execute the following statement 1:mysql> SelectT1.id,t1.name,t2.id,t2.course,sum(t1.id) fromT1JoinT2 onT1.id=T2.idwhereT1.id=1 ;+----+-------+------+--------+------------+|Id|Name|Id|Course| sum(t1.id)|+----+-------+------+--------+------------+| 1 |Zhang| NULL | NULL | NULL |+----+-------+------+--------+------------+1Rowinch Set(0.00SecThe discovery unexpectedly has the output, then executes the following statement 2:Mysql> SelectT1.id,t1.name,t2.id,t2.course,sum(t1.id)