Suggestions On A Solution For Faster Search
Jan 30, 2008
Hello.
I have an OLTP database and alot of users that is querying against that.
I am thinking of a way to store a more denormalized version of some tables in another database, and use that for a search function that we have.
The problem is that the base tables are updated all the time with new and new data. And the search cannot have that long delay but a delay of 5-10 minutes for updates/insert is ok. deletes though cannot have any delay.
I was thinking of a SCD-setup and when a delete goes against the OLTP then we also run a delete against the SCD-database. But is it possible to create a SCD-database and have it update every 5-10 minutes?
I have also been thinking of a queue-table (and store updates/inserts) in the OLTP-database and then run a query every 5 min against the queue-table and update the denormalized version of the table. But isnt this a longer way? Why not update the denormalized version of the table directly when the OLAP-tables is updated?
I have also been thinking of to truncate and then fill the denormalized version every 5-10 minute from the OLTP-version. Maybe have two tables and after the fill is complete do a rename of the two tables, so that we wont lock the table that long while filling it up with the new data.
The denormalized version would contain around 200k rows.
Any suggestions is appreciated.
Thanks
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Dec 11, 2001
I have started working with MS SQL Server 2000 recently. I have a scenario in which I require to know within the given period of time ( say 5 mins) , which all tables from a particular database got modified. I do not want to write a trigger for each and every table for all the 13 databases , my application deals with. I have even tried the following query:
declare @curdate datetime
select @curdate=getdate()
select name, refdate from sysobjects
where xtype = 'U' and refdate =@curdate
But nope it does not help me, since refdate is something else. Can anybody tell me how can you figure out from sysobjects when was a particular object last accessed , even this would serve my purpose.
I have trying to get this done via profiler. My applications api's connect to the database under some credentials which i do not know since I do not have access to source code ( i am doing black box testing). So I can't even put a trace on one particular user account. What I am doing currently is trapping all store procedure events..., but then its too much of work...
Hence I wanted to know , is there any way out for the situation where given a database name and a time span we can find out the tables modified/accessed within that time span from that database ???
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Jan 11, 2006
Dear VB coders!
I have 8.000 or 16.000 products on my list in an sql table. It takes 8 or 16 secs to find the last item.
How could I make the search faster? Indexing? But how?
I created:
createTable1.CommandText = "Create TABLE products (ID int IDENTITY(0,1) PRIMARY KEY, name ntext)"
and I use simple WHERE to search.
Thank you!
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Jan 2, 2007
have over million rows in the our table and we are looking forward to increase the speed of our query .Any ideas?set ANSI_NULLS OFF
set QUOTED_IDENTIFIER OFF
GO
ALTER PROCEDURE [dbo].[mainSearch]
@startRowIndex int,
@maximumRows int,
@rowCount int out,
@countedRow int,
@QUERY nvarchar(400)
AS
SELECT _ID,_NAME,_TYPE,_CREATEDATE,ESTATETYPE,ESTATEDISPLAYPRICE,ESTATEDISPLAYPRICECURRENCY,ESTATEDISTRICT,ESTATECITY,ESTATEROOMCOUNT,NUMBEROFPICTURES FROM
(
SELECT ROW_NUMBER() OVER (ORDER BY _CREATEDATE DESC) AS ROWRANK,*
FROM ADDS AS ADTBL JOIN CONTAINSTABLE(ADDS_FTS,(ADDS_VALUE),@QUERY) as KEY_TBL
ON ADTBL._ID = KEY_TBL.[KEY]
Where (_DELETIONSTATUS=0)
)
AS RANKEDADDS
WHERE ROWRANK > @startRowIndex AND ROWRANK <= @startRowIndex + @maximumRows -1
if(@countedRow < 1)
SET @rowCount =
(
SELECT COUNT(_ID) FROM ADDS AS ADTBL JOIN CONTAINSTABLE(ADDS_FTS,(ADDS_VALUE),@QUERY) as KEY_TBL
ON ADTBL._ID = KEY_TBL.[KEY]
Where _DELETIONSTATUS=0
)
else
SET @rowCount = @countedRow
RETURN
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Jul 30, 2007
I intend to develop a web based application, which uses SQL server 2005 at back end and Visual studio 2.0 as front end.
Application serves two functionalities
Requirement1: It carryout a search (In SQL server) for a particular name entered from front end .net application against a huge DataBase of size about 1 million records.
Scenario: The above requirement can be complemented by following example
Consider we have a bank database which has its existing customer DataBase having containing attributes like Name, Age, and Profession e.t.c.
Now if some new customer want to open a new account in bank, then bank officials want to know whether the
new customer is one of the existing customer or not(without asking to customer itself).
System should be able to detect the combination of name also i.e if we enter "Jhon" from front end .net interface
then application should be able generate all list of all customer having "Jhon" as part of their name at any location(firstname, middlename, lastname).
Requirement 2: If some time change is detected in bank's extisting customer's DataBase then each record of this DataBase is searched against a external dataBase(having almost 2 -3 million records).
Scenario: The above requirement can be complemented by following example
If new user is added to bank's existing customer database(database change) then this new updated database's every record is serarched against another bank's database.
I would like to hear experts voice for database design of such application for optimal performance,and types of searches I should look for application.
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Nov 30, 2006
VB.NET 2005 Express and SQL Server 2005 Express - NOT saving updates to DB - SOLUTION!
-----------------------------------
The following article is bogus and confusing:
How to: Manage Local Data Files - Setting 'Copy to Output Directory' to 'Do not copy'
http://msdn2.microsoft.com/en-us/library/ms246989.aspx
You must manually copy the database file to the output directory
AFTER setting 'Copy to Output Directory' to 'Do not copy'.
Do not copy
The file is never copied or overwritten by the project system. Because your application creates a dynamic connection string that points to the database file in the output directory, this setting only works for local database files when you manually copy the file yourself.
You must manually copy the database file to the output directory
AFTER setting 'Copy to Output Directory' to 'Do not copy'.
-----------------------------------
The above article is bogus and confusing.
This is rediculous!
This is the most vague and convoluted bunch of nonsince I've ever come accross!
Getting caught out on this issue for the 10th time!
And not being able to find an exact step-by-step solution.
--------------------------
I've tried it and it doesn't work for me.
Please don't try what the article eludes to as I'm still sorting out exactly what is supposed to be happening.
If you have a step-by-step procedure that can be reproduced this properly please PM me.
I would like to test its validity then update this exact post as a solution rather than just another dicussion thread.
Many thanks.
This is the exact procedure I have come up with:
NOTE 1: DO NOT allow VB.net to copy the database into its folders/directorys.
NOTE 2: DO NOT hand copy the database to a folder/directory in your project.
Yes, I know its hard not to do it because you want your project nice and tidy.
I just simply could NOT get it to work.
You should NOT have myData.mdf listed in the Solution Explorer. Ever.
Create a folder for your data following NOTE 2.
Copy your data to that folder. * mine was C:mydatamyData.mdf
Create a NEW project.
Remove any Data Connections. ( no matter what)
Save it.
Data | View Data Sources
Add New Data Source
select NEW CONNECTION ( No Matter what, do it!
Select the database. * again mine was C:mydatamyData.mdf
Answer NO to the question:
Would you like to copy the file to your project and modify the connection?
- NO ( no matter what - ANSWER NO ! - Absolutely NO )
Then select the tables you want in the DataSet.
and Finish.
To Test ----------
From the Solution Explorer | click the table name drop down arrow | select details
Now Drag the table name onto the form.
The form is then populated with a Navigation control
and matching Labels with corresponding Textboxes for each field in the table.
Save it.
1) Run the app.
Add one database record to the database by pressing the Add(+) icon
Just add some quick junk data that you don't mind getting lost if it doesn't save.
YOU MUST CLICK THE SAVE ICON to save the data you just entered.
Now exit the application.
2) Run the app again.
And verify there is one record already there.
Now add a second database record to the database by pressing the Add (+) icon.
NOW add some quick junk data that you WILL intentionally loose.
*** DO NOT *** press the save icon.
Just Exit the app.
3) Again, Run the app.
Verify that the first record is still there.
Verify that the Second record is NOT there.
Its NOT there because you didn't save the data before exiting the app.
Proving that YOU MUST CLICK THE SAVE ICON to save the data you just entered.
Also proving you must add your own code to catch the changes
and ask the user to save the data before exitiing or moving to another record.
As a side note, since vb.net uses detached datasets,
(a copy/snapshot of the dataset in memory and NOT directly linked to the database)
the dataset will reflect all changes made when moving around the detached datasets.
YOU MUT REMEMBER TO SUBMIT YOUR CHANGES TO THE DATABASE TO SAVE THEM.
Otherwise, they will simply be discarded without notice.
Whewh!
I hope this saves me some time the next time I want to start a new database project.
Oh, and uh, for anyone else reading this post.
Thanks,
Barry G. Sumpter
Currently working with:
Visual Basic 2005 Express
SQL Server 2005 Express
Developing Windows Forms with
101 Samples for Visual Basic 2005
using the DataGridView thru code
and every development wizard I can find within vb.net
unless otherwise individually stated within a thread.
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Aug 9, 2006
I'm just wonder if this is a bug in MS Search or am I doing something wrong.
I have a query below
declare @search_clause varchar(255)
set @Search_Clause = ' "hepatitis b" and "hepatocellular carcinoma"'
select * from results
where contains(finding,@search_clause)
I don't get the correct result at all.
If I change my search_clause to "hepatitis" and "hepatocellular carcinoma -- without the "b"
then i get the correct result.
It seems MS Search doesn't like the phrase contain one letter or some sort or is it a know bug?
Anyone know?
Thanks
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Mar 28, 2007
hi all, if i have a comma delimited string and want to insert each delimited substring into a table which of the following way is faster?pass the whole string into the a stored procedure and loop through the delimited string and pick out the substring and insert into the table orloop and pass the substring into a stored procedure and insert N times?or any other better ways someone could suggest me to do thanks!
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Jul 27, 2001
i have a query that i can use either and get the same results. i just need to shave some time off... which is faster the LIKE or IN () ???
thanks
kim
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Jan 16, 2006
I was just wondering if this can be done any faster? code-wise that is...
Don't mind the converts, can't do without them, as the data discipline for the source table isn't always reliable, while I have to be absolutely sure the destination data ends in the required format.
UPDATE MATCH_basistabel
SET MATCH_basistabel.matchfelt = convert(varchar(50),ALL_tbl_medlemsinfo.søgenavn),
MATCH_basistabel.søgenavn = convert(varchar(50),ALL_tbl_medlemsinfo.søgenavn),
MATCH_basistabel.medlemsnavn = convert(varchar(50),ALL_tbl_medlemsinfo.medlemsnav n),
MATCH_basistabel.medlemsnavn2 = convert(varchar(50),ALL_tbl_medlemsinfo.medlemsnav n2),
MATCH_basistabel.medlemsnummer = ALL_tbl_medlemsinfo.medlemsnummer,
MATCH_basistabel.nationalitet = convert(varchar(10), ALL_tbl_medlemsinfo.nationalitet),
MATCH_basistabel.organisationsnummer = convert(varchar(10),ALL_tbl_medlemsinfo.organisati onsnummer),
MATCH_basistabel.medlemskab = convert(varchar(20), ALL_tbl_medlemsinfo.medlemskab),
MATCH_basistabel.ipdn = ALL_tbl_medlemsinfo.ipdn,
MATCH_basistabel.ipdnroll = convert(varchar(20), ALL_tbl_medlemsinfo.ipdroll),
MATCH_basistabel.franavision = 1
FROM MATCH_basistabel, ALL_tbl_medlemsinfo
WHERE isnumeric(matchfelt) = 1
AND (convert(int, MATCH_basistabel.matchfelt) = convert(int, ALL_tbl_medlemsinfo.medlemsnummer)
AND MATCH_basistabel.franavision = 0)
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Feb 17, 2006
Hi Guys,
I have SQL file but it run slowly when comes to huge record. How do I make it faster. I do create an index but how to make use the index? Pls help me on this...
Many Thanks,
Regards,
Shaffiq
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Jul 20, 2005
I'm sonewhat new to MS SQL Server and I'm wondering about which of thefollowing two queries would be faster:DECLARE @ResidencesBuilt intDECLARE @BarracksBuilt intDECLARE @AirBaysBuilt intDECLARE @NuclearPlantsBuilt intDECLARE @FusionPlantsBuilt intDECLARE @StarMinesBuilt intDECLARE @TrainingCampsBuilt intDECLARE @FactoriesBuilt intSELECT@ResidencesBuilt = SUM(CASE WHEN BuildingType = 0 THEN Built END),@BarracksBuilt = SUM(CASE WHEN BuildingType = 1 THEN Built END),@AirBaysBuilt = SUM(CASE WHEN BuildingType = 2 THEN Built END),@NuclearPlantsBuilt = SUM(CASE WHEN BuildingType = 3 THEN Built END),@FusionPlantsBuilt = SUM(CASE WHEN BuildingType = 4 THEN Built END),@StarMinesBuilt = SUM(CASE WHEN BuildingType = 5 THEN Built END),@TrainingCampsBuilt = SUM(CASE WHEN BuildingType = 6 THEN Built END),@FactoriesBuilt = SUM(CASE WHEN BuildingType = 7 THEN Built END)FROM BuildingsGROUP BY kdIDHAVING kdID = 2902Or:DECLARE @ResidencesBuilt intDECLARE @BarracksBuilt intDECLARE @AirBaysBuilt intDECLARE @NuclearPlantsBuilt intDECLARE @FusionPlantsBuilt intDECLARE @StarMinesBuilt intDECLARE @TrainingCampsBuilt intDECLARE @FactoriesBuilt intSET @ResidencesBuilt = (SELECT Built FROM Buildings WHERE BuildingType = 0AND kdID = 2902)SET @BarracksBuilt = (SELECT Built FROM Buildings WHERE BuildingType = 1 ANDkdID = 2902)SET @AirBaysBuilt = (SELECT Built FROM Buildings WHERE BuildingType = 2 ANDkdID = 2902)SET @NuclearPlantsBuilt = (SELECT Built FROM Buildings WHERE BuildingType =3 AND kdID = 2902)SET @FusionPlantsBuilt = (SELECT Built FROM Buildings WHERE BuildingType = 4AND kdID = 2902)SET @StarMinesBuilt = (SELECT Built FROM Buildings WHERE BuildingType = 5AND kdID = 2902)SET @TrainingCampsBuilt = (SELECT Built FROM Buildings WHERE BuildingType =6 AND kdID = 2902)SET @FactoriesBuilt = (SELECT Built FROM Buildings WHERE BuildingType = 7AND kdID = 2902)The data source is:kdID BuildingType Built2902 6 02902 7 02902 4 02902 0 802902 2 02902 1 52902 3 402902 5 10Or:CREATE TABLE [dbo].[Buildings] ([kdID] [int],[BuildingType] [tinyint],[Built] [int])INSERT INTO Buildings (kdID, BuildingType, Built) VALUES (2902, 0, 80)INSERT INTO Buildings (kdID, BuildingType, Built) VALUES (2902, 1, 5)INSERT INTO Buildings (kdID, BuildingType, Built) VALUES (2902, 2, 0)INSERT INTO Buildings (kdID, BuildingType, Built) VALUES (2902, 3, 40)INSERT INTO Buildings (kdID, BuildingType, Built) VALUES (2902, 4, 0)INSERT INTO Buildings (kdID, BuildingType, Built) VALUES (2902, 5, 10)INSERT INTO Buildings (kdID, BuildingType, Built) VALUES (2902, 6, 0)INSERT INTO Buildings (kdID, BuildingType, Built) VALUES (2902, 7, 0)Analyzer says the first would be faster, but it has a lot of SUM()'s andwhatnot so I'm not too sure about this. There are also about 1000 rows inthe actual Buildings table. This will be a part of a stored procedure.
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May 7, 2007
I want to know the # of users on our web site for each month in a given year. I'm looking for a faster way to do this--perhaps one that can leverage an index instead of reading the entire table! (My avg disk queue right now is above 7 and the query takes about 90 seconds).
Here's my current SP. Basically I'm calculating each month/year and using UNION to join them together, then pivot to rotate.
USE [TNS]
GO
/****** Object: StoredProcedure [dbo].[Unique_Login_IPs] Script Date: 05/07/2007 12:38:52 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
ALTER PROCEDURE [dbo].[Unique_Login_IPs]
(
@year1 int,
@year2 int
)
AS
BEGIN
SET NOCOUNT OFF;
-- Define the years for testing purposes
set @year1 = 2006
set @year2 = 2007
SELECT month,[2006] as y2006,[2007] as y2007
FROM
(
SELECT @year1 AS year, 1 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year1) AND (MONTH(logged) = 1)) as tmpy1_1
UNION
SELECT @year1 AS year, 2 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog AS servicelog_1
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year1) AND (MONTH(logged) = 2)) as tmpy1_2
UNION
SELECT @year1 AS year, 3 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year1) AND (MONTH(logged) = 3)) as tmpy1_3
UNION
SELECT @year1 AS year, 4 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog AS servicelog_1
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year1) AND (MONTH(logged) = 4)) as tmpy1_4
UNION
SELECT @year1 AS year, 5 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year1) AND (MONTH(logged) = 5)) as tmpy1_5
UNION
SELECT @year1 AS year, 6 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog AS servicelog_1
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year1) AND (MONTH(logged) = 6)) as tmpy1_6
UNION
SELECT @year1 AS year, 7 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year1) AND (MONTH(logged) = 7)) as tmpy1_7
UNION
SELECT @year1 AS year, 8 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog AS servicelog_1
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year1) AND (MONTH(logged) = 8)) as tmpy1_8
UNION
SELECT @year1 AS year, 9 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year1) AND (MONTH(logged) = 9)) as tmpy1_9
UNION
SELECT @year1 AS year, 10 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog AS servicelog_1
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year1) AND (MONTH(logged) = 10)) as tmpy1_10
UNION
SELECT @year1 AS year, 11 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year1) AND (MONTH(logged) = 11)) as tmpy1_11
UNION
SELECT @year1 AS year, 12 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog AS servicelog_1
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year1) AND (MONTH(logged) = 12)) as tmpy1_12
UNION
SELECT @year2 AS year, 1 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year2) AND (MONTH(logged) = 1)) as tmpy1_1
UNION
SELECT @year2 AS year, 2 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog AS servicelog_1
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year2) AND (MONTH(logged) = 2)) as tmpy2_2
UNION
SELECT @year2 AS year, 3 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year2) AND (MONTH(logged) = 3)) as tmpy2_3
UNION
SELECT @year2 AS year, 4 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog AS servicelog_1
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year2) AND (MONTH(logged) = 4)) as tmpy2_4
UNION
SELECT @year2 AS year, 5 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year2) AND (MONTH(logged) = 5)) as tmpy2_5
UNION
SELECT @year2 AS year, 6 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog AS servicelog_1
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year2) AND (MONTH(logged) = 6)) as tmpy2_6
UNION
SELECT @year2 AS year, 7 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year2) AND (MONTH(logged) = 7)) as tmpy2_7
UNION
SELECT @year2 AS year, 8 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog AS servicelog_1
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year2) AND (MONTH(logged) = 8)) as tmpy2_8
UNION
SELECT @year2 AS year, 9 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year2) AND (MONTH(logged) = 9)) as tmpy2_9
UNION
SELECT @year2 AS year, 10 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog AS servicelog_1
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year2) AND (MONTH(logged) = 10)) as tmpy2_10
UNION
SELECT @year2 AS year, 11 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year2) AND (MONTH(logged) = 11)) as tmpy2_11
UNION
SELECT @year2 AS year, 12 AS month, COUNT(*) AS cnt
FROM (SELECT DISTINCT ipaddress
FROM servicelog AS servicelog_1
WHERE (method = 'LOGIN') AND (YEAR(logged) = @year2) AND (MONTH(logged) = 12)) as tmpy2_12
) piv
PIVOT
(
SUM(cnt)
FOR year IN
([2006],[2007])
) as child
END
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Jul 2, 2007
here is my schema...
Board of Zoning Appeals
Parcel#
BZACase#
ApplicantID
OwnerID
DateFiled
Size
Zoning
VU (Variance of Use)
BZACase#
ProposedUse
Comments
VDS (Variance of Developmental Standard)
BZACase#
OrdinanceReq
RequestedDim
ProposedUse
Comments
SE (Special Exception)
BZACase#
CurrentUse
ProposedUse
OrdinanceReq
RequestedDim
Comments
Applicant
ApplicantID
FirstName
LastName
CompanyName
Line1
Line2
City
State
Zip
PhoneNum
Owner
OwnerID
FirstName
LastName
CompanyName
Line1
Line2
City
State
Zip
PhoneNum
Now i know what im doing with the applicantID and ownerID...but the BZAcase# is a number/unique identifier that looks like this....2007-VU-000, 2007-VU-001, 2007-VU-003....so my question is
1. how do i get the last three numbers to increment each time a new application is created?
2. how do i retrieve the last record in the table???
3. Do you have any other suggestions?? i have to have the number and what type of form they applied for in the "case#"???
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Mar 26, 2003
I am requesting suggestions to solve my problem.
Background: We are changing the way we pay commissions to our rep groups. We used to pay when the order was placed, now we want to pay when the invoice is paid.
Problem: The commision information is currently stored in the customer order, not in the invoice. These orders get deleted a couple weeks after the order was completed (shipped).
I want to create another, rather dynamic, table/structure that will store the order number and the commission percentage.
This info in this table should:
Be deleted: if the order has been deleted and the invoice either does not exist or was payed some period of time ago (maybe 6 months)
Be updated: if the customer order has been updated (i.e. the commission was changed)
Be inserted: if the order exists but the order number is not in the new table.
That is it in a nutshell.
Thanks,
Brian
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Sep 25, 2006
hi
i have written a procedure for stock report.
its working fine. please go through the sp and give me some Suggestions. please tell me where i need to improve my code. thanks
Note: User is required to execute this procedure daily.
i am taking the sum of issues,purchases,returns,physical adjustments for each and every product from last updated date to today's date and storing it in a table i,e stock_Dump. from this table i generate the date wise stock report
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
CREATE PROCEDURE dbo.spUpdateStock
@strReturn varchar(70) output
AS
BEGIN
declare @maxDt smalld atetime
if exists(Select * from Stock_Dump where Txn_Date=
Convert(varchar,Getdate(),101))
BEGIN
set @strReturn='Stock Table already generated
for the day. cannot generate it again'
END
ELSE
BEGIN
TRUNCATE TABLE Stock_Dump_Temp
select @maxDt=max(Txn_Date) from Stock_Dump
/* insert (Opening stock) Closing stock for all
all the products from last max Date*/
INSERT INTO Stock_Dump_Temp Select Product_code,
convert(varchar,GetDate(),101) as Txn_Date,
Closing_Stock as Opening_Stock ,
0,0,0,0,0,0,0 from Stock_Dump Where
Txn_Date=Convert(varchar,@maxDt,101)
/* Issues*/
INSERT INTO Stock_Dump_Temp Select Product_code,
convert(varchar,GetDate(),101) as Txn_Date,0,
Sum(Qty) as Issue_Qty,0,0,0,0,0,0 from Issue_Details
Where Issue_No IN(Select Issue_No from Issue_Hdr
Where Issue_Date > Convert(varchar,@maxDt,101) and
Issue_Date <= Convert(varchar,getdate(),101))
Group by Product_Code
/* Goods receipt*/
INSERT INTO Stock_Dump_Temp Select Product_code,
convert(varchar,GetDate(),101) as Txn_Date,0,0,
Sum(Qty) as Purchase,0,0,0,0,0 from Dlv_note_Details
Where Dlv_Note_No IN(Select Dlv_Note_No from
Dlv_Hdr Where Dlv_Note_Date > Convert(varchar,@maxDt,101) and
Dlv_Note_Date <= Convert(varchar,getdate(),101))
Group by Product_Code
/* Rejection after receipt*/
INSERT INTO Stock_Dump_Temp Select Product_code,
convert(varchar,GetDate(),101) as Txn_Date,0,0,
0,Sum(Qty) as Rejected,0,0,0,0 from
Rejection_Details Where Rejection_No IN
(Select Rejection_No from Rejection_Hdr Where
Rejection_Date > Convert(varchar,@maxDt,101) and
Rejection_Date <= Convert(varchar,getdate(),101))
Group by Product_Code
/* Issues returns*/
INSERT INTO Stock_Dump_Temp Select Product_code,
convert(varchar,GetDate(),101) as Txn_Date,0,0,
0,0,Sum(Qty) As Issue_Returns,0,0,0 from
Issue_Return_Details Where Issue_R_No
IN(Select Issue_R_No from Issue_Return_Hdr
Where Return_Date > Convert(varchar,@maxDt,101) and
Return_Date <= Convert(varchar,getdate(),101))
Group by Product_Code
/* Physical Stock + */
INSERT INTO Stock_Dump_Temp Select Product_code,
convert(varchar,GetDate(),101) as Txn_Date,0,0,
0,0,0,Sum(Var_Qty) as Phy_Qty_P,0,0 from
Physical_Details Where Var_Qty>0 and Txn_No
IN(Select txn_No from Physical_Hdr Where
Txn_Date > Convert(varchar,@maxDt,101) and
Txn_Date <= Convert(varchar,getdate(),101))
Group by Product_Code
/* Physical -*/
INSERT INTO Stock_Dump_Temp Select Product_code,
convert(varchar,GetDate(),101) as Txn_Date,0,0,
0,0,0,0,Sum(Var_Qty) as Phy_Qty_M,0 from
Physical_Details Where Var_Qty<0 and Txn_No
IN(Select txn_No from Physical_Hdr Where
Txn_Date > Convert(varchar,@maxDt,101) and
Txn_Date <= Convert(varchar,getdate(),101))
Group by Product_Code
/* insert all the records into actual table i,e Stock_dump from Stock_dump_temp (temporory table)*/
INSERT INTO Stock_Dump Select Product_code,Txn_Date,
Sum(Opening_Stock) as Opening_Stock,Sum(Issue_Qty) as
Issue_Qty,Sum(purchase) as Purchase,Sum(Rejected) as
Rejected,Sum(Issue_Returns) as Issue_returns,
Sum(Phy_Qty_P) as Phy_Qty_P,Sum(Phy_Qty_M) as
Phy_Qty_M,0 as Closing_Stock from Stock_Dump_Temp
Group By ProducT_Code,Txn_Date
/* update closing stock*/
UPDATE Stock_Dump Set
Closing_Stock=abs((Opening_Stock+Purchase+Issue_Returns+Phy_Qty_P)-(Issue_Qty+Rejected+Phy_Qty_M))
Where Txn_Date=Convert(varchar,Getdate(),101)
/* delete unwanted records */
DELETE From Stock_Dump Where Opening_Stock=0 and
Issue_Qty=0 and Purchase=0 and Rejected=0
and Issue_Returns=0 and Phy_Qty_M=0 and Phy_Qty_P=0
set @strReturn='Stock Table Update Successfully'
return
END
END
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
suji
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Nov 21, 2006
I have a database which contains more than 20000 stored procedureswhich were created withansi nulls off. This i found out using the querySELECT name,AnsiNullsOn FROM(SELECT name, OBJECTPROPERTY(id, 'ExecIsAnsiNullsOn') AS AnsiNullsOnFROM sysobjects WHERE type = 'P' ) A WHERE AnsiNullsOn=0Is there any way that i can set this property to 1 for all the storedprocedures i have??I know the alternate method is to drop the procedure and execute thescripts again with AnsiNullsOn = 1.Is there any other simple ways?? It will be very helpful for me..
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Dec 8, 2006
I want to transform textfiles to sql server set based and not row based.what would be the best way to transfer.
let me know.
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May 4, 2008
Hello all!
I have this simple sp.
SELECT VisName
FROM tblVis
WHERE (VisID = 1)
Now I have lets say VISID 1 to 50. I'm using this SP to change the text on a button. Now I have 50 buttons. So I run this SP, then I run this in my vb.net code
Code Snippet
Dim constr As New SqlConnection(PVDBConn)
Try
'Variable to hold the results
Dim results As String = String.Empty
cmdUpd = New SqlCommand("SelVis1Name", constr)
cmdUpd.CommandType = CommandType.StoredProcedure
constr.Open()
'Set results to the value returned from ExecuteScalar()
results = CType(cmdUpd.ExecuteScalar(), String)
constr.Close()
'Set our buttons text to that value
Button1.Text = results
Catch ex As Exception
MsgBox(ex.Message.ToString)
End Try
At any time, when I start my program, I may need to label 10 buttons, or up to 50. Now I will have this number in a text file. Can I grab that number from a text file, and pass it into a SP?
And can I write this SP only once, to work for more than one label per time. Or do I have to write this sp 50 times?
TIA!
Rudy
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Feb 9, 2008
I have a database that will be used by two or more organizations. I would like to use pass phrase encryption to encrypt a couple of columns.
I'm looking for suggestions on how I might set up the db to let the organization change the pass phrase that is used for their encryption?
I don't really want to hard code it into stored procedures or select statements with parameters. I will be using SSL if that should make a difference with what you suggest.
Any thoughts are appreciated.
Thank you
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Sep 5, 2006
I have two stored procedures (l'll call them P1 & P2). P1, after a lot of processing, creates a temporary table that is used by P2 after an "exec P1" is done. I've separated the logic into two stored procedures because, ultimately, other sprocs will need the output of P1.
I get an error if I use #tempTable as the output table in P1 because it no longer exists after P1 finishes. ##tempTable works, but I'm concerned about concurrency issues. Any suggestions on what construct(s) I should be using?
Thanks in advance!
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May 14, 2007
Hi all, I m new to this forum and this is my first question. I m having 2 pages in my web site ... page 1 query directly to db using sqldatasource, the second page query through a BLL then DAL by following the step in this tutorial (http://www.asp.net/learn/dataaccess/tutorial02vb.aspx?tabid=63).... Page 1 is using a "Like" query search and the Page 2 is the normal displaying some product detail.... Under normal circumstances, one will expect Page 1 will be way fastest than the Page 2... however the problem is Page 1 is in thunder speed while Page 2 takes 10 secs to load... 10 seconds is really not acceptable... I really couldnt figure out what happens... both Page 1 and Page 2 are using the same connection string which connection through a DSN.... How is the connection different by using sqldatasource and DAL?? Could someone please help.... ThanksP.S. I m using a Pervasive database
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Jun 20, 2007
Hi y'all,
I've recently run a profiler on my code and following query took 7 seconds:
SELECT TOP 10 UI, COUNT(UI) AS Expr1 FROM table WHERE (UI <> 'custom_welcome') GROUP BY UI ORDER BY COUNT(UI) DESC
Is it possible to rewrite this so my code gets faster? It's also possible that it's due to the size of the table?
Thanks in advance! I'll let you know how long your query takes :)
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Apr 8, 2008
I have a cursor prcedure that is pretty slow because as the cursor moves through the data I have three select statement on the same table to find other rows information. Is there a better way to do this?
Simple Example of Code is:
DECLARE MyVARABLES 1 to X
DECLARE c1 CURSOR
FOR
SELECT MyData1, MyData2 to X
FROM MyTable
FOR UPDATE OF MyUpdateData
--Start Cursor
OPEN c1
FETCH NEXT FROM c1
INTO MyVariables
--LOOP
WHILE @@FETCH_STATUS = 0
BEGIN
-----------------------
-- Get other rows data to add to this rows data ......GUESSING THIS IS THE SLOW PART as the table is LARGESELECT MyVar1 = MyData1
FROM MyTable
WHERE MyTableColumns = MyVariables AND MyTableColumns2 <> MyVariables2 --FINDS OTHER ROW (I have three of these)
--Calculate & Update
If MyVarable = 'this or that'
BEGIN
UPDATE MyTable
SET MyUpdateData = MyVar1 * x *y WHERE CURRENT OF c1
END
-------------------
-- NextFETCH NEXT FROM c1
INTO MyVarables 1 to xEND
CLOSE c1
DEALLOCATE c1
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Mar 31, 2004
Hi!
I M basically an application developer & use simple sql queries in my programmings. I do not have much idea abt tuning/auditing part & thatswhy i m unable to answer them properly in my interviews. Can anybody give me some tips?????
Question 1:
In a stored procedure, One SELECT stmt is there & depending upon the @rowcount, it updates around 14000 records which is also written inside this stored procedure. Instead of writing this way, there is some other way which is faster than this. Can anybody tell me the correct way???
Question 2:Can anybody give me few examples like this?????? I need them desparetly.
Thanx. Bye.
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May 18, 2004
I´ve created a class to make some standard transaction development a little bit faster. The destructor seem to run, but something makes this object slow down the database, if SqlTransaction and/or SqlConnection isnt manualy handled with the method Commit(). Any ideas on how to handle the SqlTransaction and SqlConnection better?
public class DataTransaction
{
private bool blnError = false;
private ArrayList arrErrorList = new ArrayList();
private SqlConnectionobjConnection = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"].ToString());
private SqlTransactionobjTransaction;
public DataTransaction()
{
objConnection.Open();
objTransaction = objConnection.BeginTransaction();
}
~DataTransaction()
{
if(objTransaction.Connection != null)
{
objTransaction = null;
objConnection.Close();
}
}
public int ExecuteNonQuery(string Query)
{
int intRowsAffected = -1;
SqlCommand objCommand = new SqlCommand(Query, objConnection, objTransaction);
try
{
intRowsAffected = objCommand.ExecuteNonQuery();
}
catch(Exception e)
{
blnError = true;
arrErrorList.Add(e.ToString());
}
finally
{
objCommand.Dispose();
}
return intRowsAffected;
}
public System.Object ExecuteScalar(string Query)
{
System.Object objToReturn = null;
SqlCommand objCommand = new SqlCommand(Query, objConnection, objTransaction);
try
{
objToReturn = objCommand.ExecuteScalar();
}
catch(Exception e)
{
blnError = true;
arrErrorList.Add(e.ToString());
}
finally
{
objCommand.Dispose();
}
return objToReturn;
}
public bool Commit()
{
if(!blnError)
{
objTransaction.Commit();
return true;
}
else
{
objTransaction.Rollback();
return false;
}
objConnection.Close();
}
}
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Dec 20, 2004
Hi,
Previosuly I was executing 2 DTS packages one afte the other manually and together they took a CONSIDERABLE time. The 1st one was pulling data from the OLPT, doing transformations and populating the tables in my Datamart and the 2nd one was doing a FULL process of all the dimensions and cubes.
However I tried scheduling the DTSs as jobs and havethen merged the 2 resulting jobs as a SINGLE job having 2 sequential steps. To my surprise the resulting job takes less than half the time (actually even lesser) as compared with my original approach i.e. running the DTSs. And I am talking about major improvement in terms of completion of the tasks here :)
Am i getting over excited here or is this natural? I assume that if this is correct then jobs much be some sort of "compiled" version as compared to DTS and maybe that's why I have this terrific improvement in terms of execution times.
I'll appreciate comments. Thanks
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Jul 26, 2006
I have rewritten a stored procedure that consists of a single select that selects from a view. Essentially I combined the select in the view and the select in the sp into one select. I am now trying to determine if the new version is faster.
The estimated execution plan gives a ratio of 96% : 4% in favour of the new version when I run them together from a query window but when I try to time them I can't get a satisfactory result.
If I run each query once and display the difference between start and end time, they display 0. If I run each one 100, 200, etc times I get different results each time.
Is there anything I can do?
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Jun 17, 2004
Hypothetically,
If I had a WHERE clause that had to compare a string to another string would it be faster one way or another if I broke it down to three different, smaller searches?
An example:
WHERE a = 'abc'
OR a = 'def'
OR a = 'ghi'
as opposed to:
WHERE a = 'abcdefghi'
ddave
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Dec 20, 2004
Hi,
Previosuly I was executing 2 DTS packages one afte the other manually and together they took a CONSIDERABLE time. The 1st one was pulling data from the OLPT, doing transformations and populating the tables in my Datamart and the 2nd one was doing a FULL process of all the dimensions and cubes.
However I tried scheduling the DTSs as jobs and havethen merged the 2 resulting jobs as a SINGLe job having 2 sequential steps. To my surprise the resulting job takes less than half the time (actually even lesser) as compared with my original approach i.e. running the DTSs.
Am i getting over excited here or is this natural? I assume that if this is correct then jobs much be some sort of "compiled" version as compared to DTS and maybe that's why I have this terrific improvement in terms of execution times.
I'll appreciate comments. Thanks
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Feb 23, 2006
A little background on my database structure:
I have a live database and an archive database. I update the archive tables once a day from the live tables using:
INSERT INTO arc_table
SELECT * FROM cur_table AS cur
WHERE NOT EXISTS
(SELECT * FROM arc_table AS arc
WHERE arc.key = cur.key)
GO
This inserts newer records into the archive tables from the live tables.
I have two different methods to clean the live tables once a week but keep data from the previous week. Both methods have been verified to delete the same rows.
DELETE cur_table
WHERE EXISTS
(SELECT key FROM arc_table AS arc
WHERE arc.key = cur_table.key)
AND date_time < GetDate() - 7
GO
Second method modified from BOL - deletes identical rows
DELETE cur_table
FROM (SELECT key FROM arc_table) AS arc
WHERE arc.key = cur_table.key
AND date_time < GetDate() - 7
GO
I read that "WHERE [NOT] EXISTS" is faster than "WHERE [NOT] IN" but this is the first time I have seen DELETE xx FROM (SELECT ----)
I'd like to know which procedure will be faster and/or better.
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Sep 26, 2006
HelloI need this really faster in mS SQL 2000Usernumber (int)reportid (FK)reportreportid (PK)Category (int)SELECT A, B, C, D INTO UserCopy FROM UserWHERE User.reportid IN (SELECT MAX(report.reportID) AS maxReport FROM Report GROUP BY report.Category) AND user.number NOT IN (120,144,206,345,221,789,548,666,1204,4875,22,135, 777,444)can return a more than 1000 rows (an the table = 10.000 rows): SELECT MAX(report.reportID) AS maxReport FROM Report GROUP BY report.Categoryand the table user has a few millions rowsReport.ReportId is a Primary key for User.reportid (FK) for the moment it takes up to 3 minutes, i need to do that in 30 seconds maximumthank you for helping
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