How Many Rows Will A Query Return?
Apr 8, 2006
Does sql server have a mechanism (aside from count()) that for any given SELECT query will tell you only how many rows it will return without actually returning the data?
The reason for this is that we have a generic lookup form in an application that is used on almost every screen (we have a lot of screens, so it gets a lot of different, sometimes complicted, queries passed to it to use for the lookup, and having to manually edit the query to use count over all the select clauses doesn't seem like the best way to handle this. If we could do a kind of 'trial run' against the server just to get the number of rows and use that to help set up the form, that would be ideal.
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Nov 8, 2007
Hi All,
I am using sql server 2005. I stuck out in a strange problem.
I am using view in my stored procedure, when I run the stored procedure some of the rows get skipped out means if select query have to return 10 rows then it is returning 5 rows or any other but not all, also the records displyaing is randomly coming, some time it is displaying reords 12345 next time 5678, other time 2468.
But if I run seperately the querys written in SP then it returns all the rows. Please give me solution why it is happening like this.
There are indexes in the tables.
Once I shrink the database and rebuild the indexes, from then this problem is happening. I have rebuild the indexes several time, also updated the statistics but nothing improving.
But nothing is improving
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Apr 4, 2001
When querying any of our database tables (returning all rows from within the enterprise manager) we are getting the following error message:
"The query cannot be executed because some files are either missing or not registered" Can anyone help me with this....
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Apr 27, 1999
When running a query with a table from another SQL7 Server that is linked, if only 1 table from each server is specified, the query runs fast and returns only the data rows needed from the linked server. When another table is added on to query (on the server running the query) the query processor tries to run a remote query and return over 400,000 rows over the network. Any suggestions?
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Sep 9, 2004
I have three tables X,Y,Z. Table 'Y' is having foreign key constraints on tables 'X' and 'Z' (which happen to be primary key tables).
I would like to run a query in which I can retrieve rows from Table 'X' only if the matching rows in Table 'Y' have "ALL" their matching rows available in a simple query being run on Table "Z".
The "All" part is very important.
For more clarification, let me give you an example. Table "X" is equivalent to a mathematical "Equation" table which consists of an equation made up of several "Fields". These fields are stored in Table "Z". Table "Y" contains the primary keys from Tables "X" and "Z". i.e. Table "Y" determines what fields are required for an equation to be complete.
I am having a query "Q" on Table "Z" (Fields table) which returns me a bunch of Fields. Now, on the basis of these fields, I want to retrieve only those Equations (Table "X") which have "ALL" their required Fields present in the bunch retrieved by the Query "Q".
I hope I am clear enough.
Does anyone have any solutions???
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Feb 14, 2007
HI there,
Can someone please help with a query I have? Basically I want to return all rows in a table that have multiple date entries that are different. For example:
163610737464753422005-12-30 00:00:00.000
163610737464753592006-03-10 00:00:00.000
This security 1636 has two entries in the DB with different dates. They are lots of securities with multiple entries with the same date but I need a list of the ones with different dates. Any ideas please?
Thanks!!!!!
S
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Jul 23, 2005
Hello SQL gurus!I am trying to write a query that will return a set of continguous rowsfrom a table, and limit the number of rows returned when a maximumtotal has been reached by adding a value in one of the columns.For example, the two columns below represent 2 columns in a table.a 2b 2c 2d 3e 4f 5g 5I want to start at, say "c", and return all the rows after it as longas the sum of the numbers in column 2 (starting at "c") don't exceed10. The result I'm after would be thusc 2d 3e 4....because 2 + 3 + 4 = 9 < 10Any ideas? Many thanks.
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Mar 5, 2008
Given the following data how do I make a SQL query that returns only 1 row per product?
The returned rows need consist of only currently active products (that is WHERE (DateEffective <= { fn NOW() }).
The twist: Sometimes a product will have duplicate DateEffective records. In that case, only return the record created latest because that's the most current data that exists for a product. RowTimeStap is when the record was created.
Example Data:
HistoryID ProductID Name Color DateEffective RowTimeStamp
(auto-number PK)
1 1 Wheel Red 2/1/2008 2/1/2008
2 1 Wheel Blue 3/5/2008 3/1/2008
3 1 Wheel Orange 3/5/2008 3/2/2008
4 1 Wheel Black 1/1/2010 3/3/2008
5 2 Knob Blue 3/2/2008 3/2/2008
6 2 Knob Green 3/3/2008 3/3/2008
Query should return:
3 1 Wheel Orange 3/5/2008 3/2/2008
5 2 Knob Green 3/3/2008 3/3/2008
The query I've created fails on the twist part. I have to allow duplicate DateEffective to keep a history of changes.
Can anyone help?
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Sep 16, 2015
How to design at database level such a way so that when I implement a SQL query that returns one hundred thousand rows only display 25 rows at the client (Web page at a time). How can I accomplish this?
Once I display first 25 rows then how do I bring next 25 rows and so on. Can it be done via paging or there are other techniques. However I asked to design this in the database level. I am using MS SQL Server 2008. Front end Visual Studio 2010. I use C# for coding.
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Jul 20, 2005
I know this table is designed wrong for what I am doing but I hope Ican do it. I have a table like this.Prod_A_Jan, Prod_A_Feb, Prod_B_Jan, Prod_B_FebI want a query that returns data like this (two rows of data)"ProdA", Prod_A_Jan, Prod_A_Feb"ProdB", Prod_B_Jan, Prod_B_FebI know two queries can get it but I want one. Any Help would begreat!!!Sheila T.
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Dec 14, 2004
HI All,
I need help in sp. I have the sp that return the result but then i also want count how many rows are the result. Does anyone know how to do that?
This is my sp, and when it returns the data i also want it to return the how many rows are the result.
CREATE procedure dbo.ph_getphonebookoption
@country nvarchar(100),
@company nvarchar(100),
@office nvarchar(100)
as
select
Ext,
FName,
LName,
Title
from
phonebook
where country =@country
and company=@company
and office =@office
select count (*)
GO
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Oct 29, 1999
Trying to do a paging scheme without using #Temp tables in MS SQL 7.0
Client calls a sp passing 1 and sql returns the first 100 records.
Client sends a sp passing 100 and gets the next 100 records.
Process continues till @@fetch_status <> 0 or the client can stop sending requests.
I implemented it easily using fetch absolute into a #temp table but this has dissaster potential in a multiuser environment since everyone will be using this query continously and there is no user limit.
What other options do I have?
Thanks,
John
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Feb 19, 2008
is there is any way to find out whether my query return 0 rows inside a stored procedure.
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Oct 5, 2007
Hi All,
I have a question,
Select top 10 * from employee
the above statement return top 10 row.
but i want the rows from the table other than the top 10. Can any one help me to get it.. iam using SQL server 2005
Thanks for the help
Thanks
Bhaskar
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May 14, 2008
hi,i have a stored procedure like this in SQL server ,it returns proper value if data is there for a given id.But if there is no data,it returns row/rows of NULL value and that is counted towards "number of row returned"..Shouldn't it be like,if there are null values in a row,that row should not be counted towards rows returned value .?Rightnow if no value returned from either of the select,it still returns as 2 rows instead of 0 rows.How do handle this situation in SQL? thanks for your help
SELECT SUM(col1) AS SUM_COL1, SUM(col2) AS SUM_COL2, SUM(col3) AS SUM_COL3, SUM(col4) AS SUM_COL4FROM TABLE1WHERE (ID = nn) UNION all
SELECT SUM(col22) AS SUM_COL22 ,cast(null as int) as c1,cast(null as int)as c2,cast(null as int) as c3FROM table2WHERE TABLE2 = nn)
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Apr 8, 2004
Hi,
Any idea how to write a (T-)SQL Stored Procedure which uses a SubQuery calling
a SELECT query from another SP??
Something like...
CREATE procedure spThisSP(@param varchar(20))
AS
SELECT theColumn FROM theTable WHERE theColumn NOT IN (EXEC spAnotherSP @param)
Cheers
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Feb 24, 2006
I have a database that has 100,000+ records in a table. Am I better off returning all of the records from a search even if it is 50,000 records or is it better to do a SELECT COUNT(*) And nested SELECT TOP x statements to only return 1 page of results? What is the best practice for a situation like this?
SELECT * FROM myTable LEFT OUTER JOIN ... LEFT OUTER JOIN......WHERE something=@something AND another.... AND...
OR
SELECT COUNT(*) FROM myTable LEFT OUTER JOIN ... LEFT OUTER JOIN......WHERE something=@something AND another... AND... ORDER BY @OrderAnd
SELECT TOP(@pagesize) FROM (SELECT TOP(@pagesize * @pagenum) FROM myTable LEFT OUTER JOIN ... LEFT OUTER JOIN......WHERE something=@something AND another... AND... ORDER BY @Order)ORDER BY @revOrder
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Sep 6, 2000
What is the easiest way to return rows 200 through to 300 of a 500 row result set using SQL? Is there a simple way of doing this or do I need to write some Transact SQL? Any ideas would be appreciated.
Thanks
Rod
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Apr 12, 2007
Hi.
How does one return a range of rows.
I know that "Top 5" will return rows 0 - 5
but, how do I get 6 - 10?
thanks
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Oct 23, 2013
The following query returns 2142 rows which is correct.
Code:
select COUNT(*), sum(v.currentMarket)
from TRMaster m
inner join TRValue v on v.Year = m.Year and v.Parcel = m.Parcel
inner join TRProp p on P.PropCode = V.PropCode and p.PropType = 'A'
where m.Year = 2013 and m.deleted = 0 and m.ReviewDateTime is null and m.Status = 1
group by m.Year, m.Parcel
having SUM(v.currentmarket) > 0
How can I convert this query so that it returns just the count of 2142?
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Apr 17, 2008
I have a Dataset that I am populating from a SQL Query. I am then using the dataset to populate a report in Reporting Services. What I want to do is return a standard number of rows in my dataset. (Let's say 10.) Even if my query does not have any rows in it, I want 10 empty rows returned to the dataset. If my query has 7 rows in it then I want to add on 3 empty rows and return it. I will not have more than the standard number of rows.
I cannot get the table in the report to show up if the dataset is empty, but still want the table to display with 10 empty rows. I have searched how to do this online but am getting nowhere. (I know how to add one empty row but not a set number.
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Nov 20, 2006
Hello All
Please can anyone advice me how I can fetch list of all tables which have no records in it in sql server
Thanks
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Apr 12, 2007
Hi.How does one return a range of rows.I know that "Top 5" will return rows 0 - 5but, how do I get 6 - 10?thanks
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Jul 20, 2005
How can a SQL statement be written to return a specified range ofrows? For example:-- tblContact-- (-- SSN char(9),-- FirstName varchar(50),-- LastName varchar(50)-- )-- This table contains 500 rows.Select * from tblContact -- Return only rows 5 through 10Thanks
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May 6, 2006
Are there any way to execute a procedure and return N random rows?
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Aug 1, 2006
I have a charting control that is fed from an SqlDataSource. How do I set the SqlDataSource to only return the top N records where N is set by a web form control?The user should have the option to chart the top 3, 5, or 10 items.Is the best approach to switch to an ObjectDataSource?
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Aug 2, 2006
I am in need of help to develop a query
I have two tables Exams and Exams_lab, that are joined by a field id_exame. I want to return The Exams that has all the dependent rows in Exames_lab with the same value in the status_int field of Exames_lab. Can anyone Help Me?
Lets see an example
tb_exame
id_exame
date_exame
1
07/01/2006
2
08/01/2006
3
09/01/2006
tb_exame_lab
id_exame_lab
id_exame
desc_exame
status_exame
1
1
NORMAL
1
2
1
0
3
2
NORMAL
1
4
2
PROBLEMS
1
5
2
OK
1
6
3
OK
0
in this exemple my query must return only id_exame 2 and 3 because id_exame 1 has two different values on id_status on tb_exame_lab
can anyone help me?
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Mar 30, 2007
Can someone look at this and tell me where I went wrong? I'm trying to return all duplicate rows that have the same lastName and Address. It returns rows but they don't look like dups.SELECT TOP (100) PERCENT dbo.tblClient.LastName, dbo.tblClientAddresses.Address
FROM dbo.tblClient INNER JOIN
dbo.tblClientAddresses ON dbo.tblClient.Client_ID = dbo.tblClientAddresses.Client_ID
GROUP BY dbo.tblClient.LastName, dbo.tblClientAddresses.Address
HAVING (COUNT(dbo.tblClientAddresses.Address) > 1)
ORDER BY dbo.tblClientAddresses.Address
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Dec 9, 2007
Im am trying to return the number of rows in a table and i only can get a response of true thanks for any help
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Apr 1, 2008
Hello,
I have a stored procedure that accepts a number of different input parameters that populate some variables in my stored procedure.
I want to have this stored procedure return nothing if some of these variables aren't filled out (they are populated by a search page the user fills out).
I'm not very familiar with writing stored procedures, so any help you can give me is appreciated.
Thanks!
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Feb 28, 2006
Can store procedure return rows?
If store procedure can return rows, how to use ASP.NET to receive it? thanks!
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Jul 30, 1999
I am new to SQL Server 7 and get the following error message when I go into the Enterprise Manager, select a specific table, right mouse click, open table, return all rows:
"An unexpected error happened during this operation.
[MS Design Tools] - Query designer encountered a MS Design Tools error: Not Implemented"
Can anyone explain what is causing this error?? I can go into SQL Query Analyzer and do a SELECT against any table and bring back data, but not as stated above.
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Mar 6, 2012
I have collected perfmon data that is in every 15 seconds. I need to run a query that will only retrun rows that are 5 minutes from the last row starting at a specific date/time.
Here is the current query
Select
DisplayString,
MachineName,
ObjectName,
CounterName,
InstanceName,
[Code] ......
"CounterDateTime" is in every 15 seconds. So starting from '2012-03-02 11:59:00' I need only rows for every 5 minutes after that.
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