SELECT * on a 4000 row table is taking more than 12 seconds.
Other larger tables are not nearly as slow.
I've DBCC dbreindex'd, and dbcc showcontig shows density at 100%.
How can I figure out why this is happening?
What are some remedies?
Thanks for your help.
Dear MS SQL Experts,I have to get the number of datasets within several tables in my MSSQL2000 SP4 database.Beyond these tables is one table with about 13 million entries.If I perform a "select count(*) from table" it takes about 1-2 min toperform that task.Since I know other databases like MySQL which take less than 1 sec forthe same taskI'm wondering whether I have a bug in my software or whether there areother mechanisms to get the number of datasets for tables or the numberof datasets within the whole database.Can you give me some hints ?Best regards,Daniel Wetzler
View 5 Replies View RelatedHello everyone, I've got a bit of an SQL mystery that I'm not sure how to solve. For some reason I just cant get my head around it. Here's the scenario:
Table A:
_____________
BidID - Int identity
AuctionID - int
BiderName - varchar(50)
bidAmount - money
______________________
Now obviously each Bid will have a Unique ID using BidID but the other rows will contain multiple bids per user, on many different items possibly.
BidID AuctionID BiderName BidAmount
1 4005 joeblow 100.00
2 4005 janedoe 101.00
3 4005 joeblow 107.00
4 4006 joeblow 100.00
5 4006 janedoe 105.00
6 4006 joeblow 106.00
I need to find out which Auctions JoeBlow is bidding on, but I dont need a table with Rows for every single one of his bids, just a distinct auctionID for his top bid so in this case the only thing returned would be
3 4005 joeblow 107.00
6 4006 joeblow 106.00
Any clues? I've been through sub querys, and stored procedures, and I cant get anything to work quite right.
Thanks in advance for your help.
Hi,
I am using a SP which one has lot of Joins(More than 10 tables).
For every request from user SP executed, and the DB performance got slow.
For this i planned to write a schedule which runs once in an hour to put all the results of SP in to One single table.
I thought if the user selects from single table means the performance will increase.
I don't know whether this one is a right solution.
I am very new to SQL server. Help me for this Problem.
Thanks in advance.
Hi,
I am using a SP which one has lot of Joins(More than 10 tables).
For every request from user SP executed, and the DB performance got slow.
For this i planned to write a schedule which runs once in an hour to put all the results of SP in to One single table.
I thought if the user selects from single table means the performance will increase.
I don't know whether this one is a right solution.
I am very new to SQL server. Help me for this Problem.
Thanks in advance.
i just can't find a way to perform this Select Query in my ASP.Net page. I just want to find out the sales for a certain period[startDate - endDate] for each Region that will be selected in the checkbox. Table Sales Fields: SalesID | RegionID | Date | Amount This is how the interface looks like.Thank You.
View 1 Replies View RelatedI have created a trigger that is set off every time a new item has been added to TableA.The trigger then inserts 4 rows into TableB that contains two columns (item, task type).
Each row will have the same item, but with a different task type.ie.
TableA.item, 'Planning'
TableA.item, 'Design'
TableA.item, 'Program'
TableA.item, 'Production'
How can I do this with tSQL using a single select statement?
I want to recursively select all records within a hierarchy, using the main parentid and a textvalue on level 1 OR level 2 of the subcategories.
My data:
CREATE TABLE [dbo].[articlegroups](
[id] [int] NOT NULL,
[parentid] [int] NOT NULL,
[catlevel] [tinyint] NOT NULL,
[slug_en] [nvarchar](50) NOT NULL,
CONSTRAINT [PK_globos_articlegroups] PRIMARY KEY CLUSTERED
[Code] ...
When selecting rows I always have the main parentId (so catlevel 0) and the slug_en value.
In my example case I have id 129 and slug_en='cradles'.
I want my query to then return:
idparentidcatlevel
12900
1301291
1361302If I have id 129 and slug_en='pillows'.
I want my query to then return:
idparentidcatlevel
12900
1391291
How can I do this? I'm new to SQL Server. I was reading here [URL] .... on recursive SQL, but how to implement this as I just have one table and I also have 2 selection criteria (main category id and a text value on either level 1 or 2).
How can i combine my data in single row ? All data are in a single table sorted as employeeno, date
Code:
Employee No Date SALARY
1 10/30/2006 500
1 11/30/2006 1000
2 10/25/2006 800
3 10/26/2006 900
4 10/28/2006 1000
4 11/01/2006 8000
Should Appear
Code:
EmployeeNo Date1 OLDSALARY Date2 NEWSALARY
1 10/30/2006 500 11/30/2006 1000
2 10/25/2006 800
3 10/26/2006 900
4 10/28/2006 1000 11/01/2006 800
PLEASE HELP I REALLY NEED THE RIGHT QUERY FOR THIS OUTPUT.
THANKS IN ADVANCE
My table looks like this:char(150) HTTP_REF,char(250) HTTP_USER,char(150) REMOTE_ADDR,char(150) REMOTE_HOST,char(150) URL,smalldatetime TIME_STAMPThere are no indexes on this table and there are only 293,658 records total.When I do a select like this it takes forever:SELECT COUNT(DISTINCT REMOTE_ADDR)Takes 2 minutes. Is there anyway to speed that up?Thanks
View 8 Replies View RelatedHello.I test some query on sql server 2000 (sp2 on OS windows 2000) and iwant to know why a simple query like this :select * from Table Where Column like '%value'is more slow on 2000 than on sql 7.And this case arrive only if the % character is in the begin.If you test this :select * from Table Where Column like 'v%alue'then it's more fast on 2000.I look the execution plan, there is a difference but this differenceis the same in all the case i test (for the two query i write in thismessage for example).I don't understand why and so, if someone have an explanation, andperhaps a solution ...Excuse my poor english language.And thanks for time people spend to answer me.
View 2 Replies View Relatedhello,I have the following query. it returns result in less than 1 second.select *from employee e, address awhere e.id=a.emp_idand e.id=1234The problem is that it becomes extremely slow if i take the last lineout. So the query looks like:select *from employee e, address awhere e.id=a.emp_idThe above query is only supposed to return ~500 rows. but i stillhaven't got the result back after 30 minutes.Does anyone have any suggestions about troubleshooting this problem?Thank you in advance!Eddy
View 5 Replies View RelatedThe following stored procedure is run whenever someone searches my database. When I first created the site, this search took less than 3 seconds. Now, there is more data in the system and the search is taking over 30 seconds.
I am not very good with SQL and I'm sure I am doing some dumb things. Is there a better way to write this query to speed things up?
Thanks a lot,
Chris MessineoSET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:Chris Messineo
-- Create date: 4/27/2007
-- Description:Get Search
-- =============================================
ALTER PROCEDURE [dbo].[Search]
@Keyword as varchar(40)=NULL
AS
BEGIN
SELECT
Script.Title,
Script.ScriptID,
Script.Logline,
Member.Name
FROM
Script
Join Contest on (Script.ContestID=Contest.ContestID)
Join ScriptComment on (Script.ScriptID=ScriptComment.ScriptID)
Join Member on (Script.MemberID=Member.MemberID)
WHERE
(Title like '%' + COALESCE(@Keyword, Title) + '%' or
Logline like '%' + COALESCE(@Keyword, Logline) + '%' or
Comments like '%' + COALESCE(@Keyword, Comments) + '%')
GROUP BY
Script.Title,
Script.ScriptID,
Script.Logline,
Member.Name
ORDER BY
Title
END
I have a SELECT TOP query in order to return x number of top records from a table which has the indexing service enabled on it, such as this :
SELECT TOP(15) * FROM [TableName] ORDER BY [ColumnName]
and also there are not that many records(MAX 100 rows) kept in the table at the moment however, it will grow later.
The issue stems out from the ORDER BY [ColumnName] part of the syntax that changes the TOP selection order which makes the query to run very slow as I have also analyzed in the SQL SERVER QUERY ANALYZER.
Anyhow, I need to have the ORDER BY statement to show the data based on different columns either ascending or descending.
There might we workarounds to achieve the same goal that I am not aware of.
Any thoughts is appreciated.
Our company records live sales into an SQL Server database. The same tables that store the sale information are also used by a reporting interface to query sales figures, but occasionally a SELECT generated by the reports is so slow that it causes the INSERT operations to time out and fail.
We've tried increasing the CommandTimeout property in .NET of the application performing the inserts, but despite it being set to 90 seconds, it's still not enough to prevent the occasional sale from failing to record which is a big no-no for us. We've run the Database Tuning Advisor on the stored procedure that generates the SELECT for the reports, and it is now fully optimized but still this isn't enough. The tables are quite massive (millions of rows) and the SELECT requires JOINs to other tables, some of which are in a separate database on the same server.
Is there a solution to this problem, aside from increasing the CommandTimeout property to the point where no timeout errors occur? My concern is that doing this could increase the number of concurrent connections and we'd hit another limit, so it's not really solving the problem. Is there a way to configure SQL Server to always favour INSERTs over SELECTs? The reporting users won't really care if the reports are slower but it's critical to get these INSERTs up to 100% reliability.
I'm not a DBA (just a developer) so I don't have an intricate knowledge of databases and this problem is a bit beyond my level of expertise. Obviously we don't want to re-design our entire system, but we'll do whatever necessary to ensure we aren't failing to record sales.
One idea I had, which may be awful I don't know, is to submit these sales to an MSMQ and write some software that will read from the queue and insert the records from there instead. We could then deal with the timeout issue by just re-submitting the sale until it is accepted, then removing it from the queue.
Hello... im having a problem with my query optimization....
I have a query that looks like this:
SELECT * FROM table1
WHERE location_id IN (SELECT location_id from location_table WHERE account_id = 998)
it produces my desired data but it takes 3 minutes to run the query... is there any way to make this faster?... thank you so much...
Why the Indexes on table slow down the DML operation on table, what is the exact reason?
View 5 Replies View RelatedHello Everyone,
Consider the below table
DocNbr Cheques
00001 101010
00002 101010
00002 102020
00003 103030
00004 103030
00004 104040
00005 105050
I just need the single select to result the docnbr which is repeating the values. In the above case I want my result like below where the DocNbr 00002 and 00004 repeated their values.
DocNbr Cheques
00002 101010
00002 102020
00004 103030
00004 104040
Thanks in advance,
Senthil .G
Note: I do not consider if the cheque contain repeated values
Hi,
i have an input parameter @PageloadYN Bit Null
if @PageloadYN = 1 then Select top 500 Records from the Table
if @PageloadYN = 0 then Select * from the Table
i tried like this
Select top 500.* From Table where @PageloadYN = 1
Select * From Table where @PageloadYN = 0
Is there any way to get details in Single select statement only.
Hello,
I have a question which was given to me in a test. Question is :: print value from 1-20 in a single column using single select query without using any table.
If any one have solution, then please help me.
Just wondering, in DTS, can I run a SELECT script that selects from 2 different databases (both on the same server)?
I can run this in Sql Query Analyzer, but in a DTS, it doesnt accept my database name prefixes:
SELECT
a.something
FROM
DB_ONE.dbo.product a, DB_ONE.dbo.mp_brand b, DB_TWO.dbo.lk_pcat_cutover c
WHERE
a.PCat <> c.Pcat
(where DB_ONE and DB_TWO are the 2 different db names)
I have one connection to DB_ONE... does this mean I cant access DB_TWO when using this connection? I want to try and avoid using a temporay table for storing DB_TWO's data in DB_ONE... Is this possible?
Thanks,
Andre
In an ASP, I have a dynamically created SQL statement that amounts to "SELECT * FROM Server1.myDB.dbo.myTable WHERE Col1 = 1" (Col1 is the table's primary key). It returns the data immediately when executed.
However, when the same record is updated with "UPDATE Server1.myDB.dbo.myTable SET Comments = 'blah blah blah' WHERE Col1 = 1", the page times out before the query can complete.
I watched the program in Profiler, and I saw on the update that sp_cursorfetch was being executed as an RPC once per each row in the table. In a table of 78000 records, the timeout occurs well before the last record is fetched, and the update bombs.
I can run the same statements in Query Analyzer from a linked server and have the same results. The execution plan shows that a Remote Query is occurring on the select that returns 1 row, and a Remote Scan is taking place on the update scanning 78000 rows (I guess this is where all the sp_cursorfetch calls are happening...?).
How can I prevent the Remote Scan? How can I prevent the execution of the RPC sp_cursorfetch for each row in the remote table?
Thank you!
Is there a method to convert "Select * From Table" to "Select field1,field2,...fieldn From Table" ?
Thanks
I need to write a select statement that take the upper table and select the lower table.
View 3 Replies View RelatedHello,
I hope someone can answer this, I'm not even sure where to start looking for documentation on this. The SQL query I'm referencing is included at the bottom of this post.
I have a query with 3 select statements joined together like tables. It works great, except for the fact that I need to declare a variable and make it a table within two of those 3. The example is below. You'll see that I have three select statements made into tables A, B, and C, and that table A has a variable @years, which is a table.
This works when I just run table A by itself, but when I execute the entire query, I get an error about the "declare" keyword, and then some other errors near the word "as" and the ")" character. These are some of those errors that I find pretty meaningless that just mean I've really thrown something off.
So, am I not allowed to declare a variable within these SELECT tables that I'm creating and joining?
Thanks in advance,
Andy
Select * from
(
declare @years table (years int);
insert into @years
select
CASE
WHEN month(getdate()) in (1) THEN year(getdate())-1
WHEN month(getdate()) in (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12) THEN year(getdate())
END
select
u.fullname
, sum(tx.Dm_Time) LastMonthBillhours
, sum(tx.Dm_Time)/((select dm_billabledays from dm_billabledays where Dm_Month = Month(GetDate()))*8) lasmosbillingpercentage
from
Dm_TimeEntry tx
join
systemuserbase u
on
(tx.owninguser = u.systemuserid)
where
Month(tx.Dm_Date) = Month(getdate())-1
and
year(dm_date) = (select years from @years)
and tx.dm_billable = 1
group by u.fullname
) as A
left outer join
(select
u.FullName
, sum(tx.Dm_Time) Billhours
, ((sum(tx.Dm_Time))
/
((day(getdate()) * ((5.0)/(7.0))) * 8)) perc
from
Dm_TimeEntry tx
join
systemuserbase u
on
(tx.owninguser = u.systemuserid)
where
tx.Dm_Billable = '1'
and
month(tx.Dm_Date) = month(GetDate())
and
year(tx.Dm_Date) = year(GetDate())
group by u.fullname) as B
on
A.Fullname = B.Fullname
Left Outer Join
(
select
u.fullname
, sum(tx.Dm_Time) TwomosagoBillhours
, sum(tx.Dm_Time)/((select dm_billabledays from dm_billabledays where Dm_Month = Month(GetDate()))*8) twomosagobillingpercentage
from
Dm_TimeEntry tx
join
systemuserbase u
on
(tx.owninguser = u.systemuserid)
where
Month(tx.Dm_Date) = Month(getdate())-2
group by u.fullname
) as C
on
A.Fullname = C.Fullname
Hi,
I have several row records in which
name email
--------- ---------
name1 abc@abc.com
name2 abc@abc.com
name3 abc@abc.com
name4 123@123.com
name6 123@123.com
How should I write the query which can return records with unique email address with any name attached?
The expected record set will be
name email
--------- ---------
<any> abc@abc.com
<any> 123@123.com
I was thinking to select the distinct of email and just stuck at here. I encountered this problem few times and still cannot solve it. Any help will great appreciated. Thanks in advance.
Can somebody please tell me whether the following syntax is supportedor whether it's a "feature" that will someday stop working. It works inboth SQL Server 2000 and 2005 at the moment.declare @var varchar(1000)set @var = ''select @var = @var + colx from some_table where col1 = some_valuecolx is a varchar or at least is cast to one as part of the selectstatement. If the where clause would normally return more than one row,all returned values for colx are concatenated into @var.I've not seen this syntax before but that doesn't make it wrong ;-)Malc.
View 8 Replies View RelatedThe LIKE keyword in SELECT WHERE can use wildcard
%
Any string of zero or more characters.
_
Any single character.
but how to Pattern Matching for "zero or single character"?
define @strName as varchar(50) NULL
set @strName=(SELECT strname from Table)
SELECT '+ @strName +' from Table
It does not work
how to convert float to timestamp in single select query..for exp. i have float as 1.251152515236 ,i want to convert this to datetime and from datetime to timestamp... i.e. 26:11:00
View 6 Replies View RelatedHi,
I have a table -- Table1.
It has two columns -- Name and Alpha.
Alpha has comma separated values like -- (A,B,C,D,E,F), (E,F), (D,E,F), (F), (A,B,C).
I need to pick the values of column -- Name , where in values of Alpha is less than or equal to 'D'.
I tried <=, but got only values less than 'D', but was not able to get equal to 'D'.
Any suggestions??
I have to write a statement that answers the question:
"Which pilot is authorized to fly all the aircraft in the fleet?" implying that the individual aircraft could be of any of the three aircraft types.
Below are the tables with notation Tbl_name (important keys [clarification of keys]):
personnel (pers_id, name, crew_role [eg. pilot, stewardess]),
aircraft (craft_id, type_designation [eg. Boeing737], craft_name [eg. The Viking, Icarus]),
aircraft_type (type_designation), and
authorization (pers_id, type_designation).
In words my question should be something like:
"For all those who are authorized to fly aircraft (the only pers_id:s listed in the authorization table), show the names of those that have their pers_id:s next to all aircraft_type:s."
I've gotten this far:
Code:
SELECT DISTINCT p.name
FROM personnel AS p, authorization AS b, aircraft_type AS f
WHERE p.pers_id = b.pers_id
AND b.type_designation = ... ;
Now what I want to accomplish is to select the pilot which has a record for ALL type_designation entries in the aircraft_type table.
Is there a magic keyword that I don't know of? Is that magic keyword called "EXIST" and how do I use it?
Best regards,
rod
I have the following two tables...
tblServer
-serverID
-serverName
-serverLocation
tblSite
-siteID
-serverID
-siteName
-siteIpAddress
I need to write a select query that gets the values of all columns but only returns unique sites because some sites are load balanced across several servers and where this is the case I don't want the site to appear multiple times in the list.