Paging (retrieving Only N Rows From A Select Query) Like LIMIT

Jun 28, 2002

Message:

Hi,

Suppose i execute a query,

Select * from emp,

I get 100 rows of result, i want to write a sql query similar to the one available in MySql database where in i can specify the starting row and number of rows of records i want,

something like,

select * from emp LIMIT 10,20

I want all the records from the 10th row to the 20th row.

This would be helpful for me to do paging in the front end , where is i can navigate to the next previous buttons and fetch the corresponding records.

I want to do something like in google, previous next screens.

So I am trying to limit the number of rows fetched from a query.

somethin like,

select * from emp where startRowNum=10 and NoOfRecords = 20

so that i can get rows from 10 to 30.

Has any1 done this, plz let me know.

Cheers,
Prashant.

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 Hi,I
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Hi, 
Please help me with an SQL Query that fetches all the records from the three tables but a unique record for each forum and topicid with the maximum lastpostdate. I have to bind the result to a GridView.Please provide separate solutions for SqlServer2000/2005. 
I have three tables namely – Forums,Topics and Threads  in SQL Server2000 (scripts for table creation and insertion of test data given at the end). Now, I have formulated a query as below :- 
SELECT ALL f.forumid,t.topicid,t.name,th.author,th.lastpostdate,(select count(threadid) from threads where topicid=t.topicid) as NoOfThreads
FROM
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FULL JOIN Threads th ON t.topicid=th.topicid
GROUP BY t.topicid,f.forumid,t.name,th.author,th.lastpostdate
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Whose result set is as below:- 




forumid
topicid
name
author
lastpostdate
NoOfThreads

1
1
Java Overall
x@y.com
2008-01-27 14:48:53.000
2

1
1
Java Overall
a@b.com
2008-01-27 14:44:29.000
2

1
2
JSP
NULL
NULL
0

1
3
EJB
NULL
NULL
0

1
4
Swings
p@q.com
2008-01-27 15:12:51.000
1

1
5
AWT
NULL
NULL
0

1
6
Web Services
NULL
NULL
0

1
7
JMS
NULL
NULL
0

1
8
XML,HTML
NULL
NULL
0

1
9
Javascript
NULL
NULL
0

2
10
Oracle
NULL
NULL
0

2
11
Sql Server
NULL
NULL
0

2
12
MySQL
NULL
NULL
0

3
13
CSS
NULL
NULL
0

3
14
FLASH/DHTLML
NULL
NULL
0

4
15
Best Practices
NULL
NULL
0

4
16
Longue
NULL
NULL
0

5
17
General
NULL
NULL
0  
On modifying the query to:- 
SELECT ALL f.forumid,t.topicid,t.name,th.author,th.lastpostdate,(select count(threadid) from threads where topicid=t.topicid) as NoOfThreads
FROM
Forums f FULL JOIN Topics t ON f.forumid=t.forumid
FULL JOIN Threads th ON t.topicid=th.topicid
GROUP BY t.topicid,f.forumid,t.name,th.author,th.lastpostdate
HAVING th.lastpostdate=(select max(lastpostdate)from threads where topicid=t.topicid)
ORDER BY t.topicid ASC,th.lastpostdate DESC 
I get the result set as below:- 




forumid
topicid
name
author
lastpostdate
NoOfThreads

1
1
Java Overall
x@y.com
2008-01-27 14:48:53.000
2

1
4
Swings
p@q.com
2008-01-27 15:12:51.000

I want the result set as follows:- 




forumid
topicid
name
author
lastpostdate
NoOfThreads

1
1
Java Overall
x@y.com
2008-01-27 14:48:53.000
2

1
2
JSP
NULL
NULL
0

1
3
EJB
NULL
NULL
0

1
4
Swings
p@q.com
2008-01-27 15:12:51.000
1

1
5
AWT
NULL
NULL
0

1
6
Web Services
NULL
NULL
0

1
7
JMS
NULL
NULL
0

1
8
XML,HTML
NULL
NULL
0

1
9
Javascript
NULL
NULL
0

2
10
Oracle
NULL
NULL
0

2
11
Sql Server
NULL
NULL
0

2
12
MySQL
NULL
NULL
0

3
13
CSS
NULL
NULL
0

3
14
FLASH/DHTLML
NULL
NULL
0

4
15
Best Practices
NULL
NULL
0

4
16
Longue
NULL
NULL
0

5
17
General
NULL
NULL
0  I want all the rows from the Forums,Topics and Threads table and the row with the maximum date (the last post date of the thread) as shown above. 
The scripts for creating the tables and inserting test data is as follows in an already created database:- 
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[FK__Topics__forumid__79A81403]') and OBJECTPROPERTY(id, N'IsForeignKey') = 1)
ALTER TABLE [dbo].[Topics] DROP CONSTRAINT FK__Topics__forumid__79A81403
GO 
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[FK__Threads__topicid__7C8480AE]') and OBJECTPROPERTY(id, N'IsForeignKey') = 1)
ALTER TABLE [dbo].[Threads] DROP CONSTRAINT FK__Threads__topicid__7C8480AE
GO 
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Forums]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[Forums]
GO 
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Threads]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[Threads]
GO 
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Topics]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[Topics]
GO 
CREATE TABLE [dbo].[Forums] (
            [forumid] [int] IDENTITY (1, 1) NOT NULL ,
            [name] [varchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL ,
            [description] [varchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL
) ON [PRIMARY]
GO 
CREATE TABLE [dbo].[Threads] (
            [threadid] [int] IDENTITY (1, 1) NOT NULL ,
            [topicid] [int] NOT NULL ,
            [subject] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL ,
            [replies] [int] NOT NULL ,
            [author] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL ,
            [lastpostdate] [datetime] NULL
) ON [PRIMARY]
GO 
CREATE TABLE [dbo].[Topics] (
            [topicid] [int] IDENTITY (1, 1) NOT NULL ,
            [forumid] [int] NULL ,
            [name] [varchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL ,
            [description] [varchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NULL
) ON [PRIMARY]
GO 
ALTER TABLE [dbo].[Forums] ADD
             PRIMARY KEY  CLUSTERED
            (
                        [forumid]
            )  ON [PRIMARY]
GO 
ALTER TABLE [dbo].[Threads] ADD
             PRIMARY KEY  CLUSTERED
            (
                        [threadid]
            )  ON [PRIMARY]
GO 
ALTER TABLE [dbo].[Topics] ADD
             PRIMARY KEY  CLUSTERED
            (
                        [topicid]
            )  ON [PRIMARY]
GO  
ALTER TABLE [dbo].[Threads] ADD
             FOREIGN KEY
            (
                        [topicid]
            ) REFERENCES [dbo].[Topics] (
                        [topicid]
            )
GO 
ALTER TABLE [dbo].[Topics] ADD
             FOREIGN KEY
            (
                        [forumid]
            ) REFERENCES [dbo].[Forums] (
                        [forumid]
            )
GO  
------------------------------------------------------ 
insert into forums(name,description) values('Developers','Developers Forum');
insert into forums(name,description) values('Database','Database Forum');
insert into forums(name,description) values('Desginers','Designers Forum');
insert into forums(name,description) values('Architects','Architects Forum');
insert into forums(name,description) values('General','General Forum'); 
insert into topics(forumid,name,description) values(1,'Java Overall','Topic Java Overall');
insert into topics(forumid,name,description) values(1,'JSP','Topic JSP');
insert into topics(forumid,name,description) values(1,'EJB','Topic Enterprise Java Beans');
insert into topics(forumid,name,description) values(1,'Swings','Topic Swings');
insert into topics(forumid,name,description) values(1,'AWT','Topic AWT');
insert into topics(forumid,name,description) values(1,'Web Services','Topic Web Services');
insert into topics(forumid,name,description) values(1,'JMS','Topic JMS');
insert into topics(forumid,name,description) values(1,'XML,HTML','XML/HTML');
insert into topics(forumid,name,description) values(1,'Javascript','Javascript');
insert into topics(forumid,name,description) values(2,'Oracle','Topic Oracle');
insert into topics(forumid,name,description) values(2,'Sql Server','Sql Server');
insert into topics(forumid,name,description) values(2,'MySQL','Topic MySQL');
insert into topics(forumid,name,description) values(3,'CSS','Topic CSS');
insert into topics(forumid,name,description) values(3,'FLASH/DHTLML','Topic FLASH/DHTLML');
insert into topics(forumid,name,description) values(4,'Best Practices','Best Practices');
insert into topics(forumid,name,description) values(4,'Longue','Longue');
insert into topics(forumid,name,description) values(5,'General','General Discussion'); 
insert into threads(topicid,subject,replies,author,lastpostdate) values (1,'About Java Tutorial',2,'a@b.com','1/27/2008 02:44:29 PM');
insert into threads(topicid,subject,replies,author,lastpostdate) values (1,'Java Basics',0,'x@y.com','1/27/2008 02:48:53 PM');
insert into threads(topicid,subject,replies,author,lastpostdate) values (4,'Swings',0,'p@q.com','1/27/2008 03:12:51 PM');
 

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How To Limit No Of Rows While Pulling Data From Oracle To Sql Through SSIS

Oct 23, 2007



Hi,

I want to pull sample records lets say 1000 rows only from oracle database to sql server. Is there any option in ssis to limit the number of rows?

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Paging Query

Aug 2, 2006

I have created a stored proc for paging on a datalist which uses a objectDataSource.
I have a output param itemCount which should return the total rows. Them I am creating a temp table to fetch the records for each page request. My output param works fine if I comment out all the other select statements. But returns null with them. Any help would be appreciated.
CREATE PROCEDURE [dbo].[CMRC_PRODUCTS_GetListByCategory]( @categoryID int, @pageIndex INT, @numRows INT, @itemCount INT OUTPUT )AS
SELECT @itemCount= COUNT(*) FROM CMRC_Products where CMRC_Products.CategoryID=@categoryID  Declare @startRowIndex INT; Declare @finishRowIndex INT; set @startRowIndex = ((@pageIndex -1) * @numRows) + 1; set @finishRowIndex = @pageIndex * @numRows 
DECLARE @tCat TABLE (TID int identity(1,1),ProductID int, CategoryID int, SellerUserName varchar(100), ModelName varchar(100), Medium varchar(50),ProductImage varchar(100),UnitCost money,Description varchar(1500), CategoryName varchar(100), isActive bit,weight money)
INSERT INTO @tCat(ProductID, CategoryID,SellerUserName,ModelName,Medium,ProductImage,UnitCost,Description,CategoryName, isActive,weight)SELECT     CMRC_Products.ProductID, CMRC_Products.CategoryID, CMRC_Products.SellerUserName,  CMRC_Products.ModelName, CMRC_Products.Medium,CMRC_Products.ProductImage,                       CMRC_Products.UnitCost, CMRC_Products.Description, CMRC_Categories.CategoryName, CMRC_Products.isActive,CMRC_Products.weightFROM         CMRC_Products INNER JOIN                      CMRC_Categories ON CMRC_Products.CategoryID = CMRC_Categories.CategoryIDWHERE     (CMRC_Products.CategoryID = @categoryID) AND (CMRC_Products.isActive = 1)
SELECT    ProductID, CategoryID,SellerUserName,ModelName,Medium,ProductImage,UnitCost,Description,CategoryName, isActive,weightFROM         @tCat WHERE TID >= @startRowIndex AND TID <= @finishRowIndexGO

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Query Paging

Apr 29, 2006

let's suppose that we have a table entitled "tab1" which has more than 1000 rows and about 10 columns

so in SQL 2000, if I do this query:

SELECT * FROM tab1

the result will be displaying all the rows from the begining.

and my teacher told me that there's a new option in SQL 2005 which is you can display the result of the query in a page mode.

so can anyone tell me how can I do so for this query:

SELECT * FROM tab1

so that I can see the results in pages.



thanks

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Retrieving Specific Page(number Of Rows) Form Table

Sep 27, 2005

hi,

i need SP that receive 2 integers ,@NUM_ROWS and @PAGE_NUMBER,
and return the rows in that page.
for example:

SP(4,2) will return 4 rows in page number 2 .

So if i have table with 9 rows i will get rows 5-8,
the first page is rows 1-4 the second page is 5-8 and the 3 page is row 9.

i have to assume that rows can be deleted form that table.
thanks

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Retrieving Rows Of Database Values That Have Numbers Cloest To Our Input

Jan 11, 2008



Mean_A Std_Dev_A Mean_B Std_Dev_B Mean_C Std_Dev_C X_Co Y_Co Posn



71.7
9.36
73.23
3.62
70.87
4.06
12
14
1

72.69
8.02
79.39
2.66
73.39
5.16
13
15
2

74.37
10.27
77.33
4.10
79.33
3.44
14
16
3














The Above is my database, I need help in retrieving the X_Co and the Y_Co using values of rcv_A, rcv_B and rcv_C to compare with the Mean_A, Mean_B, Mean_C. The values of rcv_A, rcv_B and rcv_C are instances of values that are not exact of the mean columns , and we want is to compare it against our database and retrieve the row that is the closest to the rcv_A, rcv_B and rcv_C.

Here is an example of what i need. Let's say my rcv_A = 71, rcv_B = 73 and rcv_C = 70.8, so the row with mean value closest would be row 1, followed by row 2, then row 3.

So the result i hope to retrieve is in order of the closest value and i only need the X_Co and Y_Co.
This is what i want

X_Co Y_Co
---------------------------
12 14
13 15
14 16

So anyone please can help me in querying for the above results? Thanks

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