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Update README.md

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sunkaixuan 2019-04-29 20:48:18 +08:00 committed by GitHub
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@ -76,31 +76,25 @@ We use it to query
var getAll = db.Queryable<Student>().ToList();
var getAllNoLock = db.Queryable<Student>().With(SqlWith.NoLock).ToList();
var getByPrimaryKey = db.Queryable<Student>().InSingle(2);
var getByWhere = db.Queryable<Student>().Where(it => it.Id == 1 || it.Name == "a").ToList();
var getByFuns = db.Queryable<Student>().Where(it => SqlFunc.IsNullOrEmpty(it.Name)).ToList();
var sum = db.Queryable<Student>().Sum(it=>it.Id);
var isAny = db.Queryable<Student>().Where(it=>it.Id==-1).Any();
var isAny2 = db.Queryable<Student>().Any(it => it.Id == -1);
var getListByRename = db.Queryable<School>().AS("Student").ToList();
var group = db.Queryable<Student>().GroupBy(it => it.Id)
.Having(it => SqlFunc.AggregateCount(it.Id) > 10)
.Select(it =>new { id = SqlFunc.AggregateCount(it.Id) }).ToList();
var getByWhere = db.Queryable<Student>().Where(it => it.Id == 1 || it.Name == "a").ToList();
var getByFuns = db.Queryable<Student>().Where(it => SqlFunc.IsNullOrEmpty(it.Name)).ToList();
var group = db.Queryable<Student>().GroupBy(it => it.Id).Select(it =>new { id = SqlFunc.AggregateCount(it.Id) }).ToList();
//Page
var page = db.Queryable<Student>().ToPageList(pageIndex, pageSize, ref totalCount);
//page join
var pageJoin = db.Queryable<Student, School>((st, sc) =>new JoinQueryInfos(
JoinType.Left,st.SchoolId==sc.Id
)).ToPageList(pageIndex, pageSize, ref totalCount);
var pageJoin = db.Queryable<Student, School>((st, sc) =>new JoinQueryInfos(JoinType.Left,st.SchoolId==sc.Id)).ToPageList(pageIndex, pageSize, ref totalCount);
//top 5
var top5 = db.Queryable<Student>().Take(5).ToList();
//join Order By (order by st.id desc,sc.id desc)
var list4 = db.Queryable<Student, School>((st, sc) =>new JoinQueryInfos(
JoinType.Left,st.SchoolId==sc.Id
))
var list4 = db.Queryable<Student, School>((st, sc) =>new JoinQueryInfos(JoinType.Left,st.SchoolId==sc.Id))
.OrderBy(st=>st.Id,OrderByType.Desc)
.OrderBy((st,sc)=>sc.Id,OrderByType.Desc)
.Select<ViewModelStudent>().ToList();