SQL Server :: Query Slow In Loading / Trying To Display Query Result?
Feb 1, 2011
I am trying to display this query result in an aspx page.
It is very slow in loading. Here is the query. The inner query inside the outer quesry is the problem.(Please see the underlined part in the query) - (If I remove that part it is very fast.)
select
top 500
--This column is the issue
,Governing_Class=( case when exists (select top 1 tqc.class_code from
t_quote_class tqc
inner join t_quote_class_premium tqcm on tqc.class_code =tqcm.
class_code
where tqc.appid=pi.appid and tqc.class_code not in('8742' ,'8810','7380')
order by tqcm.premium_amt desc
)
then ( select top 1 tqc.class_code from
t_quote_class tqc
inner join t_quote_class_premium tqcm on tqc.class_code =tqcm.
class_code
where tqc.appid=pi.
appid
order by tqcm.premium_amt desc
)
......... From tables
The below SQL query is running extremely slow. Im using this query on other tables and its processing about 5 rows per second. The below version is running 1 row every 10 seconds when @SQLNew is executed.
I've got this query UPDATE linkeddb...table SET field1 = 'Y' WHERE column1 = '1234' This takes 23 seconds to select and update one row But if I use openquery (which I don't want to) then it only takes half a second.
The reason I don't want to use openquery is so I can add parameters to my query securely and be safe from SQL injections. Does anyone know of any reason for it to be running so slowly?
In my database when I fire query it takes 40 secs on 1 crore data, similar when I use join with other table then it take more time. I have taken care non cluster index such thing. But still I want to optimize my query, what other thing I need to take like buffer, disk size etc. I am not sure on this area.
One of my peer wrote a query based on multiple tables using joins. One of the table is in a different database The query was taking much time
1. Create an SP 2. Create a temp table and copy all records from the external db 3. Avoid using Left Join as much as possible and use Inner Join 4. Create and use indexes 5. Remove tables/columns that are not necessary
In this scenario, I would like to suggest to use Covering Index, but how can it be created for multiple tables and a temp table?
I have a sql table (ProductsOffers) in which I store all the offers posted for each Product it consists of columns
offerId int ProductId int ProductSpec nvarchar 50 OfferDate DateTime OfferId + ProductId = My primary Key
everyday there will be many offers for each model and some of them may have no offer in this day. Now Suuppose that I have 10 Products with 15 offers. I want a sql sentence or function that let me select the latest offer for each product. When I select by date it returns the last inserted offer and they may have repeated products and also there will be some products not appear in the result. how can I get a result with the latest 10 Offers for all my products with one offer per product
I have this ListView that has a Drop Down List.Everything works fine (I think/hope) except that the drop down list are not showing its result correctly.This is the code.
Front-End [Code]....
The code behind consist of the page_load and the ItemDataBound [Code]....
I'm having a problem with my Linq to XML query. I'm getting the result data I want, but it's nested so deep that there must be a better way.Here is my XML:
[Code]....
I'm trying to get a list (simple string[]) of all Item IDs where Category Names contains "Other".Here is my Linq:
[Code]....
[Code]....
Here is a snapshot of my result from Visual Studio:The results I want are there ("item100", "item400", "item500"), but buried so deeply in the results var.
By right clicking on my database i created a query in server explorer. But where are this query stored can't find them back. I should aspect that their is a folder query's like there is a folder tables but this isn't the case.
I am trying to create statitics for game downloads and am having dificulty with a sub part of my query. the goup by command is not having the disired result and i think i have been looking at it too long to see what i am doing wrong. [Code]....
At the moment it is producing each result in many rows when only 4 rows should appear. its the download column that is doing it. needs to be sub queried or something to display total in relation to month,gameid,userid.
I am a biggner in SQL DB . but i started a complicated and painfull work in SQL SERVER 2008. the problem convert Oracle hierarchical query to SQL query. the query
SELECT DISTINCT LEVEL LVL, SCH.NSCHEDULE_SL, SCH.NSCHEDULE_SL_FM, SCH.CSHED_CNAME FROM FA_SCHEDULES SCH WHERE LEVEL = 1 AND NSCHEDULE_SL_FM IS NULL AND NBRANCH_SL = 2 CONNECT BY PRIOR SCH.NSCHEDULE_SL_FM = SCH.NSCHEDULE_SL AND NBRANCH_SL = 2
I have a SQL Data Source that displays records after going through the Query Builder and select "Test Query" yet when I save it, go back to the design mode and select View in Browser I get nothing but a blank screen.
im using an access database with less than 50.000 records on a single table, no relations.
ive put the following code inside a two for cycles as per the respective variables (i, j) the connection is opened outside the outer cycle and closed after it, im holding the connection open to save up on open/close time and im using OleDB thinking it would be faster than ODBC. The ds fill operation takes nearly 3 seconds in debug mode, the total process will require almost 4 hours. How is it possible to speed it up?
I use the follwoing code to get a value from the SQL query. But now i would like to use some sql function like Sum() count() ... and i would like to get the result of that. vb Code: Dim constg As New SqlConnection constg.ConnectionString = "Data Source=m......." constg.Open() Dim payrollquery As String '= ("SELECT * FROM xxxxx.nnnnn WHERE ID IN(" & ID & " ) AND sent = 'U' ") Dim cmd3 As New SqlCommand(sqlstr, constg) Dim reader As SqlDataReader = cmd3.ExecuteReader
i need to make 2 funtions on an ASP.NET c# page working with an SQL server (using Visual Web Developer 2010 Express) the 1st one is a simple serach and i've done the 2nd thing is an update , the sp is like:(it works in SQL)
UPDATE [lens] SET [qty] = @b+@c WHERE [id] = @a
@a is the id which user input in the textbox1
@b is an number user input in the textbox2
now @c should be the result of an query "select [qty] from [lens] where [id] = @a"
so ,the new value of [qty] will be the "old valus"+"valus in textbox2"
I have,hours(in varchar),Id in table tbl_x ,i need the sum of hours, monthyear(eg. mar 2010)for the last three months.But with two separate queries i am getting these results.but actually i need in the following format
Month/Year TotalHours ----------------- ---------------- Mar 2010 0400 Apr 2010 0450
