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Paging optimization

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This commit is contained in:
sunkaixuan
2017-07-08 01:41:59 +08:00
parent 3bc24087c4
commit f8c5aef4c5
5 changed files with 44 additions and 51 deletions
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26
Src/Asp.Net/SqlServerTest/Program.cs
View File

@@ -18,19 +18,19 @@ namespace OrmTest
static void Main(string[] args)
{
// /***Unit Test***/
//new Select(1).Init();
//new Field(1).Init();
//new Where(1).Init();
//new Method(1).Init();
//new JoinQuery(1).Init();
//new SingleQuery(1).Init();
//new SelectQuery(1).Init();
//new AutoClose(1).Init();
//new Insert(1).Init();
//new Delete(1).Init();
//new Update(1).Init();
//new Mapping(1).Init();
//new DataTest(1).Init();
new Select(1).Init();
new Field(1).Init();
new Where(1).Init();
new Method(1).Init();
new JoinQuery(1).Init();
new SingleQuery(1).Init();
new SelectQuery(1).Init();
new AutoClose(1).Init();
new Insert(1).Init();
new Delete(1).Init();
new Update(1).Init();
new Mapping(1).Init();
new DataTest(1).Init();
/***Performance Test***/
new SqlSugarPerformance(100).Select();

20
Src/Asp.Net/SqlServerTest/UnitTest/Query/SingleQuery.cs
View File

@@ -39,24 +39,15 @@ namespace OrmTest.UnitTest
base.Check("SELECT [ID],[SchoolId],[Name],[CreateTime] FROM [STudent] ORDER BY [ID] ASC", null, t3.Key, null, "single t3 Error");
var t4 = db.Queryable<Student>().OrderBy(it => it.Id).Take(3).ToSql();
base.Check(@"WITH PageTable AS(
SELECT [ID],[SchoolId],[Name],[CreateTime] FROM [STudent]
)
SELECT * FROM (SELECT *,ROW_NUMBER() OVER(ORDER BY [ID] ASC) AS RowIndex FROM PageTable ) T WHERE RowIndex BETWEEN 1 AND 3", null, t4.Key, null, "single t4 Error");
base.Check(@"SELECT * FROM (SELECT [ID],[SchoolId],[Name],[CreateTime],ROW_NUMBER() OVER(ORDER BY [ID] ASC) AS RowIndex FROM [STudent] ) T WHERE RowIndex BETWEEN 1 AND 3", null, t4.Key, null, "single t4 Error");
var t5 = db.Queryable<Student>().OrderBy(it => it.Id).Skip(3).ToSql();
base.Check(@"WITH PageTable AS(
SELECT [ID],[SchoolId],[Name],[CreateTime] FROM [STudent]
)
SELECT * FROM (SELECT *,ROW_NUMBER() OVER(ORDER BY [ID] ASC) AS RowIndex FROM PageTable ) T WHERE RowIndex BETWEEN 4 AND 9223372036854775807", null, t5.Key,null, "single t5 Error");
base.Check(@"SELECT * FROM (SELECT [ID],[SchoolId],[Name],[CreateTime],ROW_NUMBER() OVER(ORDER BY [ID] ASC) AS RowIndex FROM [STudent] ) T WHERE RowIndex BETWEEN 4 AND 9223372036854775807", null, t5.Key,null, "single t5 Error");
int pageIndex = 2;
int pageSize = 10;
var t6 = db.Queryable<Student>().OrderBy(it => it.Id,OrderByType.Desc).Skip((pageIndex-1)*pageSize).Take(pageSize).ToSql();
base.Check(@"WITH PageTable AS(
SELECT [ID],[SchoolId],[Name],[CreateTime] FROM [STudent]
)
SELECT * FROM (SELECT *,ROW_NUMBER() OVER(ORDER BY [ID] DESC) AS RowIndex FROM PageTable ) T WHERE RowIndex BETWEEN 11 AND 20", null, t6.Key, null, "single t6 Error");
base.Check(@"SELECT * FROM (SELECT [ID],[SchoolId],[Name],[CreateTime],ROW_NUMBER() OVER(ORDER BY [ID] DESC) AS RowIndex FROM [STudent] ) T WHERE RowIndex BETWEEN 11 AND 20", null, t6.Key, null, "single t6 Error");
int studentCount=db.Ado.GetInt("select count(1) from Student");
@@ -104,10 +95,7 @@ namespace OrmTest.UnitTest
.Where(it=>it.Id==1)
.WhereIF(true,it=> SqlFunc.Contains(it.Name,"a"))
.OrderBy(it => it.Id, OrderByType.Desc).Skip((pageIndex - 1) * pageSize).Take(pageSize ).With(SqlWith.NoLock).ToSql();
base.Check(@"WITH PageTable AS(
SELECT [ID],[SchoolId],[Name],[CreateTime] FROM [STudent] WITH(NOLOCK) WHERE ( [ID] = @Id0 ) AND ([Name] like '%'+@MethodConst1+'%')
)
SELECT * FROM (SELECT *,ROW_NUMBER() OVER(ORDER BY [ID] DESC) AS RowIndex FROM PageTable ) T WHERE RowIndex BETWEEN 11 AND 20", new List<SugarParameter>() {
base.Check(@"SELECT * FROM (SELECT [ID],[SchoolId],[Name],[CreateTime],ROW_NUMBER() OVER(ORDER BY [ID] DESC) AS RowIndex FROM [STudent] WITH(NOLOCK) WHERE ( [ID] = @Id0 ) AND ([Name] like '%'+@MethodConst1+'%') ) T WHERE RowIndex BETWEEN 11 AND 20", new List<SugarParameter>() {
new SugarParameter("@Id0",1),new SugarParameter("@MethodConst1","a")
}, t8.Key, t8.Value,"single t8 Error");

3
Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
View File

@@ -495,6 +495,9 @@ namespace SqlSugar
public virtual List<T> ToPageList(int pageIndex, int pageSize, ref int totalNumber)
{
totalNumber = this.Count();
if (totalNumber == 0)
return new List<T>();
else
return ToPageList(pageIndex, pageSize);
}

8
Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
View File

@@ -229,13 +229,15 @@ namespace SqlSugar
}
}
sql = new StringBuilder();
if (this.OrderByValue == null && (Skip != null || Take != null)) this.OrderByValue = " Order By GetDate() ";
if (this.OrderByValue == null && (Skip != null || Take != null)) this.OrderByValue = " ORDER BY GetDate() ";
if (this.PartitionByValue.IsValuable())
{
this.OrderByValue = this.PartitionByValue + this.OrderByValue;
}
sql.AppendFormat(SqlTemplate, GetSelectValue, GetTableNameString, GetWhereValueString, GetGroupByString + HavingInfos);
sql.Replace("{$:OrderByString:$}", (Skip != null || Take != null) ? string.Format(",ROW_NUMBER() OVER({0}) AS RowIndex ", GetOrderByString) : null);
var isRowNumber = Skip != null || Take != null;
var rowNumberString = string.Format(",ROW_NUMBER() OVER({0}) AS RowIndex ", GetOrderByString);
sql.AppendFormat(SqlTemplate, GetSelectValue, GetTableNameString, GetWhereValueString, GetGroupByString + HavingInfos,(!isRowNumber&&this.OrderByValue.IsValuable())?GetOrderByString:null);
sql.Replace("{$:OrderByString:$}", isRowNumber? (this.IsCount?null: rowNumberString): null);
if (IsCount) { return sql.ToString(); }
if (Skip != null && Take == null)
{

2
Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs
View File

@@ -12,7 +12,7 @@ namespace SqlSugar
{
get
{
return "SELECT {0}{{$:OrderByString:$}} FROM {1}{2}{3}";
return "SELECT {0}{{$:OrderByString:$}} FROM {1}{2}{3}{4}";
}
}
}