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Update README.md

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sunkaixuan 2019-04-29 15:38:58 +08:00 committed by GitHub
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@ -66,7 +66,7 @@ There are 16 methods under SqlSugarClient
## 1. Query ## 1. Queryable
```cs ```cs
@ -113,23 +113,11 @@ var list6 = db.Queryable<Student, School,School>((st, sc,sc2) => st.SchoolId ==
var list7= db.Queryable<Student, School, School>((st, sc, sc2) => st.SchoolId == sc.Id && sc.Id == sc2.Id) var list7= db.Queryable<Student, School, School>((st, sc, sc2) => st.SchoolId == sc.Id && sc.Id == sc2.Id)
.Select((st, sc, sc2) => new { st.Name, st.Id, schoolName = sc.Name, schoolName2 = sc2.Name }).ToPageList(1,2); .Select((st, sc, sc2) => new { st.Name, st.Id, schoolName = sc.Name, schoolName2 = sc2.Name }).ToPageList(1,2);
//join 2
var list = db.Queryable<Student, School>((st, sc) => new JoinQueryInfos(
JoinType.Left,st.SchoolId==sc.Id
))
.Where(st=>st.Name=="jack").ToList();
//join 3
var list2 = db.Queryable<Student, School,Student>((st, sc,st2) => new JoinQueryInfos(
JoinType.Left,st.SchoolId==sc.Id,
JoinType.Left,st.SchoolId==st2.Id
))
.Where((st, sc, st2)=> st2.Id==1||sc.Id==1||st.Id==1).ToList();
//join return List<ViewModelStudent> //join return List<ViewModelStudent>
var list3 = db.Queryable<Student, School>((st, sc) => new JoinQueryInfos( var list3 = db.Queryable<Student, School>((st, sc) => new JoinQueryInfos(
JoinType.Left,st.SchoolId==sc.Id JoinType.Left,st.SchoolId==sc.Id
)).Select((st,sc)=>new ViewModelStudent { Name= st.Name,SchoolId=sc.Id }).ToList(); )).Select<ViewModelStudent>().ToList();
//join Order By (order by st.id desc,sc.id desc) //join Order By (order by st.id desc,sc.id desc)
var list4 = db.Queryable<Student, School>((st, sc) =>new JoinQueryInfos( var list4 = db.Queryable<Student, School>((st, sc) =>new JoinQueryInfos(
@ -144,10 +132,6 @@ var getAll = db.Queryable<Student, School>((st, sc) => new JoinQueryInfos(
.Where(st => st.Id == SqlFunc.Subqueryable<School>().Where(s => s.Id == st.Id).Select(s => s.Id)) .Where(st => st.Id == SqlFunc.Subqueryable<School>().Where(s => s.Id == st.Id).Select(s => s.Id))
.ToList(); .ToList();
//sql
SELECT `st`.`ID`,`st`.`SchoolId`,`st`.`Name`,`st`.`CreateTime`
FROM `STudent` st Left JOIN `School` sc ON ( `st`.`ID` = `sc`.`Id` )
WHERE ( `st`.`ID` =(SELECT `Id` FROM `School` WHERE ( `Id` = `st`.`ID` ) limit 0,1))
``` ```