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([Distributes rows in an ordered partition to a specified number of groups. Each group has a number, numbering from the beginning. For each row, Ntile returns the number of the group to which this row belongs. SQL statements to be used in the test: Copy Code code as follows: Set STATISTICS TIME on SET STATISTICS IO on Set STATISTICS profile on; With #pager as ( Select Id,title,ntile (8666) over [order by ID] as PageID from Article_detail ) Select Id,title from #pa
Label:The original: Remember the paging optimization of SQL Server and talk about the problems of using row_number () pageRecently there is a project response, in the server CPU usage is high, our Event query page is very slow, query a few records unexpectedly 4 minutes or more, and in the second page to take so much time, this is certainly unacceptable, but also
Today is ready to use the project to increase the paging function, the original is too limited, so the Internet to find some information recorded, the front is the use of others to summarize, the following is their own test results, haha, testing to have the basis:Three methods of paging in SQL SERVER 2008 and comparison, a friend you need can refer toCreate a ta
The paging of the SQL Server Stored Procedure has been discussed for several years. Many friends are asking me, so I would like to share my opinion on creating a table here: CREATETABLE [TestTable] ([ID] [int] IDENTITY (100) NOTNULL, [FirstName] [nvarchar] () COLLATEChinese_PRC_CI_ASNULL, [LastName] The paging of the SQL Serv
),--The table name @strGetFields varchar (1000) = ' * ',--the column that needs to be returned @fldName varchar (255) = ',--the field name of the sort @PageSize int = 10,--page dimension @PageIndex int = 1,--page number @OrderType bit = 0,--set sort type, non 0 value descending @strWhere varchar (1500) = ',--query condition (Note: Do not add where) @Counts int = 0 OUTPUT--the number of records queried) as declare @strSQL nvarchar (4000)--The subject sentence declare @strTmp nvarchar (110) --Temp
server| Stored Procedures | Paging SQL Server Stored procedures, this issue has been discussed for several years, many friends are asking me, so here is my point of view set up the table: CREATE TABLE [testtable] ( [ID] [int] IDENTITY (1, 1) not NULL, [FirstName] [nvarchar] (m) COLLATE chinese_prc_ci_as NULL, [LastName] [nvarchar] (m) COLLATE chinese_pr
form of SQL Server using Table variables. I think many people are using this method. DECLARE @ PAGETEMP TABLE(_ ROW_NUM int identity (1, 1 ),_ TID INT)Insert into @ PAGETEMP (_ TID) select top 30 OrderID FROM dbo. Orders order by RequiredDateSELECT [@ PAGETEMP]. _ ROW_NUM, * FROM Orders, @ pagetemp where dbo. orders. orderID = [@ PAGETEMP]. _ tid and [@ PAGETEMP]. _ ROW_NUM> 20 AND [@ PAGETEMP]. _ ROW_NUM Create a table variable wi
syntax: LIMIT # offset #. The code is as follows Copy Code Mysql> SELECT * FROM table LIMIT 5, 10; Retrieve record row 6-15, note that 10 is offsetTo retrieve all row rows from an offset to the end of a recordset, you can specify a second argument of-1:Mysql> SELECT * from table LIMIT 95,-1; Retrieves the record row 96-last.If only one argument is given, it represents the maximum number of record rows returned:Mysql> SELECT * from table LIMIT 5; Retrieves the first
Label:Recently in the analysis of the new features of offset and fetch in SQL Server 2012, it is quite good to find that the offset and fetch, whether the syntax is concise or powerful, are fairly Which offset and fetch the most important new features are used for paging, since to analyze the paging, it must be compared with the previous pagination, especially r
This article focuses on SQL Server 2005 's newly added row-number sorting function, which classifies the result dataset according to the classification criteria you specify, and assigns consecutive pages to the dataset for your reference! Paging is the display of grouped datasets according to some rule, but in SQL Server pag
, @currentpage, @pagesize exec sp_cursorclose @P1 set nocount off Other scenarios: If you don't have a primary key, you can use a temporary table, or you can do it with scenario three, but the efficiency will be low. When tuning is recommended, the query efficiency increases with the primary key and index.Using SQL Query Analyzer to show comparisons: My conclusion is:Paging Scenario Two: (using ID greater than how much and select top paging) T
app. For a well-performing SQL Server system, hard Page Fault should be kept in a smaller number, and the less Paging the Disk, the better. There is enough memory in the system to allow the target page to reside in physical memory for a long time without the need for frequent disk paging actions. If there is not enough memory, the OS and SQL
Question: Data is frequently queried in applications. When the data size of the query results is large, it takes a lot of time to retrieve the results and display the interface. To avoid this problem, only part of the data should be retrieved at a time, that is, the common paging method should be used for processing. The paging problem seems very simple in Asp.net. You only need to enable
Assuming that this is page pageno, there are pagesize records per page, and now the student table is queried using MySQL, Oracle, and SQL Server paging.1. mysql Paging query:1 SELECT2 FROM4 student5 LIMIT (PageNo-1) * pagesize,pagesize;Understanding: (Limit n,m) + starts from the nth line to fetch M Records, n from 0 to calculate.2, Oracel paged query:1 S
Label:Assuming that this is page pageno, there are pagesize records per page, and now the student table is queried using MySQL, Oracle, and SQL Server paging. 1. mysql Paging query: 1 SELECT 2 * 3 from 4 student 5-1* pagesize,pagesize; Understanding: (Limit n,m) + starts from the nth line to fetch M Records, n from 0 to calculate. 2, Oracel paged query:
*,rn=row_number () over(Order by CustomerId ASC) from Customers) as Twhere t.rn between (8-1) *7+1 and 8*7;select *from (select Rn=row _number () over (order by autoid ASC), * from Student) as Swhere s.rn between (3-1) *7+1 and 3*7;select Tsnam e,tsage,tclassnamefrom tblstudent as TS INNER join Tblclass as TC on TS.TSCLASSID=TC.TCLASSID;NBSP;NBSP;SE lect tsname,tsage,tclassnamefrom tblstudent as TS INNER join Tblclass as TC on Ts.tsclassi D=tc.tclassidwhere ts.tsage>20;select T1.tsname,t1.
When using SQLServer, paging processing has always been a tough issue. When using SQL Server, paging processing has always been a tough issue. Under normal circumstances, the SQL Server will create an appropriate index for a frequently used TableThis will greatly improve the data retrieval speed of the database itse
1. Improved version of "Russian stored procedure" Create procedure pagination1(@ Pagesize int, -- page size, such as storing 20 records per page@ Pageindex int -- current page number)As set nocount on Begin Declare @ indextable table (ID int identity (), nid int) -- Define table VariablesDeclare @ pagelowerbound int -- defines the bottom code of this page.Declare @ pageupperbound int -- defines the top code of this page. Set @ pagelowerbound = (@ pageindex-1) * @ pagesizeSet @ pageupperbound = @
) + ' [emailprotected]+ ' ORDER by ' [emailprotected]+ ' EXEC (@Sql)--print @Sql--2. Get Total Record Set @Sql2 = ' Select count (1) from ' [emailprotected]+ ' EXEC (@Sql2)--print @Sql2--3. Get Total Paging Set @Sql3 = ' Select Ceili Ng (count (1) *1.0/(' [emailprotected]+ ')) from ' [emailprotected]+ ' EXEC (@Sql3)--print @Sql3 Go--Test code exec Proc_paging ' Customers ', 2,10, ' Customerid,companyname,address,city,postalcode ', ' CustomerID ', ' AS
1. Improved version of "Russian stored procedure" CREATE procedure pagination1(@ Pagesize int, -- page size, such as storing 20 records per page@ Pageindex int -- current page number)As set nocount on Begin Declare @ indextable table (id int identity (), nid int) -- Define table VariablesDeclare @ PageLowerBound int -- defines the bottom code of this page.Declare @ PageUpperBound int -- defines the top code of this page. Set @ PageLowerBound = (@ pageindex-1) * @ pagesizeSet @ PageUpperBound = @
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