Constant Re-indexing Of Db
Aug 24, 2005We have a database that on a daily basis suffers from poor performance.
View 4 Replies
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Difference In Performance Between Constant Scalar UDF Vs. Simple Constant
Oct 4, 2007Is there a perf difference between:
create function dbo.zzz
returns uniqueidentifier
return '0000-0000-0000-00000000'
select dbo.zzz
vs.
se;ect '0000-0000-0000-00000000'
Thanks,
J
FLAT File Indexing Vs RDBMS Indexing
Sep 22, 2006Hi
I want to know is a flat file faster than a RDBMS for indexing for example a search engine indexing would a flat file be better in terms of performance, scalability etc than a RDBMS?
Online Re-indexing Vs Offline Re-indexing
Sep 10, 2007Hi,
The other day we tried online re-indexing feature of SQL 2005 and it€™s performing faster than offline re-indexing. Could you please validate if it€™s supposed to do be this way? I always thought offline should be faster than online.
Thanks,
Ritesh
Constant In SQL For DTS To Textfile
Jul 15, 2005In an effort to automate a process, I am trying to populate a csv textfile with data from a SQL Server 2000 database that will be imported by a proprietary database; however, not all of the data required to go into the textfile is available in the source db. Fortunately, the data I'm needing has constant values for the fields that I want to populate, i.e Lab Name. Whereas, the Destination database will receive data from other labs but not via this source.
Is it possible to use a constant rather than a db field within the SQL query to populate one of the textfile fields. (I placed "LABNAME" in where I would like it to go) A portion of my present SQL statement is:
Select LEFT([SAMPNAME], 4) AS IUNUM, RIGHT(LEFT([SAMPNAME], 8), 3) AS SITENUM, convert(varchar,[SAMPDATE], 112) as SAMPDATE, [BDL] AS "SAMPNUM", [ANALYTE], (CASE [STARTDATE]-[SAMPDATE] WHEN 0 THEN '2' ELSE '1' END) AS METHOD, convert(varchar,[STARTDATE], 112) as STARTDATE, [FINAL], [BDL], "LABNAME", [NOTES1], [SAMPLER], [ORDNO], [UNITS]
From [CUSTOMER]
As you can see, I have already done a lot of formatting within the statement but would appreciate someone's SQL expertise to tell me if using a constant is possible or not.
Thanks,
Al
Specifying Constant Value For Column In Bcp.
Jan 28, 2008Hi,
I want to bcp data file generated by other system into a table maintened by our system. While generating the bcp data file they leave data value for id column empty (because they are not aware of the value in our system).
I want to specify a constant value for id column during bcp. Is there any way i can specify a constant value in bulk insert command? Can i specify it in format file?
Although i can read the bcp file and do transformation in front end (C#) it is time consuming. I can bcp data and then fire a update statement to update id column, this is also found to be time consuming task.
Any help would be appriciated.
Many thanks,
Rishi
When solution is simple, God is answering….
Constant In Stored Procedure
May 30, 2000How can I use constant path define in SP,
The below is my conde which gets me error, any1 knows about that ?
Thanks
Declare path nvarchar(500)
@Path = 'H:HN2000AMASTEREPPma01.mdb'
EXEC sp_addlinkedserver
@server = 'PUA01', --Server Name
@provider = 'Microsoft.Jet.OLEDB.4.0', --Provider Name
@srvproduct = 'OLE DB Provider for Jet',--Product
@datasrc = @Path
How To Sort Numbers After Some Constant
Aug 10, 2006hello
I want to get output like this if i give the strings:
output:
====
25813/3
25813/115
25813/208
here "25813/" must be constant and remaining part must come in orderly way.
but in MS SQL the first inserted value is getting first i.e if we give value 25813/115 is getting first.
I will show in example:
create table number(num varchar(20))
insert into number values('25818/115')
insert into number values('25818/208')
insert into number values('25818/3')
The output coming is:
color
1 25818/115
2 25818/208
3 25818/3
BUT I REQUIRE THE OUTPUT AS:
color
1 25818/3
2 25818/115
3 25818/208
since 3 comes first than others.
If anyone knows please tell.
Is There A Way To Declare Constant Variables ?
Feb 15, 2005Or, is the only way to use "declare" and "set" only ?
View 1 Replies View RelatedConstant In Autonumber ID Field
Apr 15, 2007I know this may be in the wrong forum, but I have a question. I am working on a system for a video store. I have rentals and sales for videos. I have set the ID fields for rentals and sales to be autonumbers and increment by 1, but I would like to have an S in front of sales IDs and R in front of rental IDs at all times. It is kind of like a constant in all autonumber ID fields. I want the S and R to be in every ID field, but the number to change. Thanks.
View 2 Replies View RelatedComputed Columns And Constant
Aug 22, 2006Hi, I have a small problem with my database. I've got following situation: I have a computed column, which value is base on currency rate: rent * rate. Users have to have possibility to change currency rate easily (maybe another table or constant). Is there any way to create formula, which would compute value properly, via constant or something like this? Or the easiest workaround would be load data into dataset (I'm building asp.net application - database will be very small - couple of hundreds of records) and make calculations programmatically?
Przemek
Constant Table Size?
Feb 9, 2007Hi, thanks for taking a minute to help me out.
I've got a bunch of reports that have very specific formatting requirements (not mine, industry standards). Basically I need to have different headers and footers on each page, so I don't think I can use the report's headers and footers. Instead I'd like to use each table's (one for each page) set of headers and footers. This is fine for getting the data in there, but I'd like the table footer to be forced to be at the bottom of the page because having a footer halfway down just looks bad.
To summarize, is it possible to have a table footer be in the same place on a page (almost) regardless of how many rows there are returned.
pg1 pg2
header header
data data
data
footer footer
I'd prefer not to split each page into a different report and use those footers, so if there are any other hacks out there I'd really appreciate it
Thanks, Jeff
How To Define A Constant Value In Sql Query Analyzer
Jan 29, 2008I want to run some sql code from Query Analyzer. The sql code uses parameters.How do I define the parameter before setting it to a value? I don't want to hardcode the input parameteres.
Ex:
create @Prim -- This is the line I need help on. Instead of "create", what is -- the proper way of setting this value ?
set @Prime=13
SELECT Prime.Quaternion, Gaussian.RegionId, Laplace.Primer,
TLog Size Remaining Constant
Aug 22, 2003recently i noticed that my trans Log size is not increasing(it is constant) , but the databse size is increasing at high speed.
why is it so? earlier the reverse used to happen i.e databse size increased only after a certain period. and log size increased at const. rate.
Get The Date Ranges For Constant Values.
May 31, 2008I have a table with date like this.
InstId--Date----Readings
--1---10/12/2008--10
--1---11/12/2008--10
--1---12/12/2008--10
--1---13/12/2008--9
--1---14/12/2008--10
--1---15/12/2008--10
--1---16/12/2008--10
--1---17/12/2008--10
--2---05/03/2008--8
--2---06/03/2008--6
--2---07/03/2008--8
--2---08/03/2008--8
--2---09/03/2008--8
--2---20/03/2008--8
Guys I want to get the date ranges instrument wise for which the instrument readings are constant.
For example for instrument 1 the readings are constant i.e 10 from 10/12/2008
till 12/12/2008 & then again it is constant from 14/12/2008 till 17/12/2008.
Same goes for instrument id 2.It is constant from 07/03/2008 till 20/03/2008.
I need to get the output like this.
StartDate EndDate Readings
10/12/2008 12/12/2008 10
14/12/2008 17/12/2008 10
17/03/2008 20/03/2008 8
Thanks for any help.
Adding A Constant Column Before Insert
Oct 21, 2007I have a data flow with a sort of transformations, the result are three columns to be inserted in a SQL Server 2005 table but I need to add a fourth column that contains the same values for each row, I mean, to add a column with constant values in the insert process.
how can I do it??
thanks.
SQL 2012 :: How To Query Searching For Constant Values Only
May 7, 2015I am interested in creating a query that will test if a value is the same in a particular field.
For example, if the value is "0", or "000", or "000000" or "333", "444444", I would like to extract it. Otherwise omit the value.
Report With Constant Number Of Detail Lines
Nov 1, 2007I am developing a report analog of a machine readable form that has to display a static number of detail rows regardless of the number returned from the database - i.e. if a record set has only three detail records, I need to display three blank rows, while if the record set has ten detail records, I need to display six detail records, print the footer, start a new page, repeat the header information, print the remaining 4 detail records and 2 blank rows, print the footer again and move on to the remaining recordset. I am new to report development and I'm having to pick it up on the fly. I can't seem to locate any documentation about how to handle this scenario.
I don't have the time or inclination to re-invent the wheel here, is there anyone who has solved this problem who can point me in the direction of some help?
Conditional Split - Compare DATETIME With Constant
Sep 26, 2007
Hi,
I have to compare a DATETIME Field with '1/1/1900 12:00:00 AM". Which is default DATE TIME Value in SQL Server.
I did compare like
TRADEAGREEMENTFROMDATE != (DT_DBTIMESTAMP)(DATEPART("mm",(DT_DBTIMESTAMP)"1/1/1900 12:00:00 AM"))
but (DT_DBTIMESTAMP)(DATEPART("mm",(DT_DBTIMESTAMP)"1/1/1900 12:00:00 AM")) returns "12/31/1800 12:00:00:AM"
Thanks,
Aravind
Error : Only Constants, Constant Expressions, Or Variables Allowed Here.
Jun 9, 2004hi all,
when I try to do the following insert for the table test
create table test (outputs character(10), chk integer)
insert into test values('a',((select count(*) from test where outputs='a')+1))
I am getting the error
The name 'outputs' is illegal in this context. Only constants, constant expressions, or variables allowed here. Column names are illegal.
when i tried the same in DB2 it's working fine. is there anyerror in my syntax or this kind of function not allowed in SQL Server.
regards
Melb
Is There A Sample Way To Define String Constant Which Every Stored Procedure Can Use In SQL 2005 ?
Sep 26, 2006Is there a sample way to define string constant which every stored procedure can use in SQL 2005 ? 1. In stored procedure A, there is select a1,a2,a3,a4 from mytable where usename='qaz'2. In stored procedure B, there isselect a1,a2,a3,a4 from mytable where VisitNumber>33. I hope there is a sample way to define string constant such as: constant mystring='a1,a2,a3,a4'4. So I can use this string constant both stored procedure A and stored procedure bsuch as:select mystring from mytable where usename='qaz' select mystring from mytable where VisitNumber>35. How can I do that? is there a sample way? Mnay Thanks!
View 1 Replies View RelatedTransact SQL :: Insert Constant Value Along With Results Of Select Into Temp Table?
Dec 4, 2015I'm trying to fill a temp table whose columns are the same as another table plus it has one more column. The temp table's contents are those rows in the other table that meet a particular condition plus another column that is the name of the table that is the source for the rows being added.
Example: 'permTable' has col1 and col2. The data in these two rows plus the name of the table from which it came ('permTable' in this example) are to be added to #temp.
Data in permTable
col1Â Â Â col2
11,   12
21,    22
Data in #temp after permTable's filtered contents have been added
TableName, col1Â Â Â col2
permTable, 11,    12
permTable, 21,    22
What is the syntax for an insert like this?
Reporting Services :: How To Build Sum Field Starting From Constant Initial Value
Oct 9, 2015I am using sql server 2012 and report builder 3.0 for building my report
I have a querry which produce the following output
Is there a way directly in report builder to add a new column field which need to produce the following output :
RUNNING STOCK
8Â Â Â Â Â Â Â Â Â (calculated from ProductTotalWeight - StockBalance)
10      (calculated from Previous row value + StockBalance)
8       (calculated from Previous row value + StockBalance)
10Â Â Â Â Â ....
8
10
8
Can this be achieved?
Analysis :: Proactive Caching On Rolap Dimension - Constant Change Notification On Source Table
Aug 20, 2011I have SSAS 2008 Enterprise sp2 (not R2) running on a production server. One of the dimensions is defined as real-time Rolap - set to clear the cache whenever the table changes.
I placed triggers on that table to be sure, so I know no changes occur on that table sometimes for 10 or 15 minutes at a time - and yet I get 100's of change notifications (I noticed them on a profiler session). It seems as though the notifications come as often as the dimension gets queried.
I think this is causing one of my longer running queries to fail because of locking issues. I assume this is because the queries are getting killed when they're in middle of using an outdated cache.
The strange thing is that I cannot reproduce this on the dev servers. The main difference between the dev and production servers is that the production servers are behinfd a cluster. I don't know if that could make any difference.
I really need to know why I'm getting so many notifications. Â
How Can I Set Constant Padding Between The Columns Of The Column Chart(stacked Column Sub-type)?
Aug 2, 2006Hi All,
I am working on a column chart type (stacked column sub-type) report.
Our customer requires us that the space(padding) between the columns should be a constant(including the space between the Y-axis and the first column). I know how to set the width of the columns, but I really don't know how to set the width of the space between them. The columns just varies the space between them automatically according to the number of the columns (the number of the columns is not certain).
Thanks a lot in advance!
Danny
Valid Expressions Are Constants, Constant Expressions, And (in Some Contexts) Variables. Column Names Are Not Permitted.
Dec 11, 2007I want to have this query insert a bunch of XML but i get this error...
Msg 128, Level 15, State 1, Procedure InsertTimeCard, Line 117
The name "ExpenseRptID" is not permitted in this context. Valid expressions are constants, constant expressions, and (in some contexts) variables. Column names are not permitted.
Msg 128, Level 15, State 1, Procedure InsertTimeCard, Line 151
The name "DateWorked" is not permitted in this context. Valid expressions are constants, constant expressions, and (in some contexts) variables. Column names are not permitted.
What am i doing wrong...Can anyone help me out!! Thanks!!
p.s I know this query looks crazy...
Code Block
IF EXISTS (SELECT NAME FROM sysobjects WHERE NAME = 'InsertTimeCard' AND type = 'P' AND uid=(Select uid from sysusers where name=current_user))
BEGIN
DROP PROCEDURE InsertTimeCard
END
go
/*********************************************************************************************************
** PROC NAME : InsertTimeCardHoursWorked
**
** AUTHOR : Demetrius Powers
**
** TODO/ISSUES
** ------------------------------------------------------------------------------------
**
**
** MODIFICATIONS
** ------------------------------------------------------------------------------------
** Name Date Comment
** ------------------------------------------------------------------------------------
** Powers 12/11/2007 -Initial Creation
*********************************************************************************************************/
CREATE PROCEDURE InsertTimeCard
@DateCreated DateTime,
@EmployeeID int,
@DateEntered DateTime,
@SerializedXML text,
@Result int output
as
declare @NewTimeCardID int
select @NewTimeCardID = max(TimeCardID) from OPS_TimeCards
-- proc settings
SET NOCOUNT ON
-- local variables
DECLARE @intDoc int
DECLARE @bolOpen bit
SET @bolOpen = 0
--Prepare the XML document to be loaded
EXEC sp_xml_preparedocument @intDoc OUTPUT, @SerializedXML
-- check for error
IF @@ERROR <> 0
GOTO ErrorHandler
--The document was prepared so set the boolean indicator so we know to close it if an error occurs.
SET @bolOpen = 1
--Create temp variable to store values inthe XML document
DECLARE @tempXMLTimeCardExpense TABLE
(
TimeCardExpenseID int not null identity(1,1),
TimeCardID int,
ExpenseRptID int,
ExpenseDate datetime,
ProjectID int,
ExpenseDescription nvarchar(510),
ExpenseAmount money,
ExpenseCodeID int,
AttachedRct bit,
SubmittoExpRep bit
)
DECLARE @tempXMLTimeCardWorked TABLE
(
TimeCardDetailID int not null identity(1,1),
TimeCardID int,
DateWorked DateTime,
ProjectID int,
WorkDescription nvarchar(510),
BillableHours float,
BillingRate money,
WorkCodeID int,
Location nvarchar(50)
)
-- begin trans
BEGIN TRANSACTION
insert OPS_TimeCards(NewTimeCardID, DateCreated, EmployeeID, DateEntered, Paid)
values (@NewTimeCardID, @DateCreated, @EmployeeID, @DateEntered, 0)
-- check for error
IF @@ERROR <> 0
GOTO ErrorHandler
--Now use @intDoc with XPATH style queries on the XML
INSERT @tempXMLTimeCardExpense (TimeCardID, ExpenseRptID, ExpenseDate, ProjectID, ExpenseDescription, ExpenseAmount, ExpenseCodeID, AttachedRct, SubmittoExpRep)
SELECT @NewTimeCardID, ExpenseRptID, ExpenseDate, ProjectID, ExpenseDescription, ExpenseAmount, ExpenseCodeID, AttachedRct, SubmittoExpRep
FROM OPENXML(@intDoc, '/ArrayOfTimeCardExpense/TimeCardExpense', 2)
WITH ( ExpenseRptID int 'ExpenseRptID',
ExpenseDate datetime 'ExpenseDate',
ProjectID int 'ProjectID',
ExpenseDescription nvarchar(510) 'ExpenseDescription',
ExpenseAmount money 'ExpenseAmount',
ExpenseCodeID int 'ExpenseCodeID',
AttachedRct bit 'AttachedRct',
SubmittoExpRep bit 'SubmittoExpRep')
-- check for error
IF @@ERROR <> 0
GOTO ErrorHandler
-- remove XML doc from memory
EXEC sp_xml_removedocument @intDoc
SET @bolOpen = 0
INSERT OPS_TimeCardExpenses(TimeCardID, ExpenseRptID, ExpenseDate, ProjectID, ExpenseDescription, ExpenseAmount, ExpenseCodeID, AttachedRct, SubmittoExpRep)
Values(@NewTimeCardID, ExpenseRptID, ExpenseDate, ProjectID, ExpenseDescription, ExpenseAmount, ExpenseCodeID, AttachedRct, SubmittoExpRep)
select @NewTimeCardID, ExpenseRptID, ExpenseDate, ProjectID, ExpenseDescription, ExpenseAmount, ExpenseCodeID, AttachedRct, SubmittoExpRep
from @tempXMLTimeCardExpense
-- check for error
IF @@ERROR <> 0
GOTO ErrorHandler
-- For time worked...
INSERT @tempXMLTimeCardWorked(TimeCardID, DateWorked, ProjectID, WorkDescription, BillableHours, BillingRate, WorkCodeID, Location)
SELECT @NewTimeCardID, DateWorked, ProjectID, WorkDescription, BilliableHours, BillingRate, WorkCodeID, Location
FROM OPENXML(@intDoc, '/ArrayOfTimeCardWorked/TimeCardWorked', 2)
WITH ( DateWorked DateTime 'DateWorked',
ProjectID datetime 'ProjectID',
WorkDescription nvarchar(max) 'WorkDescription',
BilliableHours float 'BilliableHours',
BillingRate money 'BillingRate',
WorkCodeID int 'WorkCodeID',
Location nvarchar(50)'Location')
-- check for error
IF @@ERROR <> 0
GOTO ErrorHandler
-- remove XML doc from memory
EXEC sp_xml_removedocument @intDoc
SET @bolOpen = 0
INSERT OPS_TimeCardHours(TimeCardID, DateWorked, ProjectID, WorkDescription, BillableHours, BillingRate, WorkCodeID, Location)
Values(@NewTimeCardID,DateWorked, ProjectID, WorkDescription, BillableHours, BillingRate, WorkCodeID, Location)
select @NewTimeCardID ,DateWorked, ProjectID, WorkDescription, BillableHours, BillingRate, WorkCodeID, Location
from @tempXMLTimeCardWorked
-- commit transaction, and exit
COMMIT TRANSACTION
set @Result = @NewTimeCardID
RETURN 0
-- Error Handler
ErrorHandler:
-- see if transaction is open
IF @@TRANCOUNT > 0
BEGIN
-- rollback tran
ROLLBACK TRANSACTION
END
-- set failure values
SET @Result = -1
RETURN -1
go
Constant CPU Usage On Server When Using SQL Server 2005 Management Studio
Jun 7, 2006
I have recently installed SQL Server 2005 (Developer Ed) + SP1 onto a VMWare based Windows 2003 + SP1 server.
SQL Server works fine when connecting to it using Mangement Studio on Windows XP.
However, I have noticed strange CPU usage on the server which seems to be caused by Management Studio (either directly or indirectly).
When no-one is connecting to the server using Management Studio, the server happily ticks along with CPU usage around 1-5% range. However, as soon as someone connects to the SQL Server instance using Management Studio the CPU usage begin to go up and down constantly.
The CPU usage ranges from 5-50% and it goes up and down (fairly regularly) every few seconds. It does this even when nothing is actually being done in Management Studio. The moment Management Studio is closed, the CPU usage goes back to normal.
The processes on the server that appear to be causing the CPU spikes are services.exe and wmiprvse.exe.
On a possibly connected note (though possibly not), the Security log in the server's Event Viewer shows that there are logins occuring every minute or so (most of the logins are from my account).
Any ideas?
Update One Table With Value Of A Column In Another Table Plus A Constant
Sep 19, 2012Need to update one table with value of a column in another table plus a constant:
UPDATE TABLE_A
SET TABLE_A.COLA=TABLE_B.COLB+'10'
FROM TABLE_A
INNER JOIN TABLE_B
ON TABLE_A.COLA=TABLE_B.COLA
WHERE TABLE_A.COLA=TABLE_B.COLA
The above statement works except the concatenated string has space between TABLE_B.COLB text and '10'. How to remove the space (4 characters) so that the string shows as one word 'TABLE_B.COLB10'?
Indexing
Jul 18, 2005Hi!! I dont know if this is the correct forum for this or not, but still...Actually i wanted to know some details about SQl's Indexing services.
I found this link on my hosters help pages :
You need to use SQL Query Analyzer tool for this.
This will enable full-text indexing for the current database:exec sp_fulltext_database 'enable'
This creates a catalog:exec sp_fulltext_catalog 'catalogname', 'create'
This enables indexing of a table:exec sp_fulltext_table 'tablename', 'create','catalogname', 'indexname'
This adds a column to an index:exec sp_fulltext_column 'tablename', 'columnname', 'add'
This activates fulltext on a table:exec sp_fulltext_table 'tablename', 'activate'
These two enable automatic filling of the full-text index when changes occur to a table:exec sp_fulltext_table 'tablename','start_change_tracking'exec sp_fulltext_table 'tablename','start_background_updateindex'
From the above i get that i need to set up my database for indexing then make a catalog and then add an index of a table to this catalog. Can anyone point any good tutorials for using this is the proper way so that performance is not affected and tells me details on updating indexes etc(esp using some criterias). Moreover does indexing columns lower the performance? Is there a workaround? I am completely new to this.
Re-Indexing
Jun 13, 2002What should I be looking at if I have real-time data (constant transactions) writing to a table that is experiencing index type problems? The table needs to constantly be re-indexed, which is slowing the whole transaction process down.
What can I look at or do to rectify this?
Thanks!
Indexing
Mar 13, 2008Hi,
Can you please help me find out if this statement is always true:
"Adding a new Index slows down updates"
This is more a general question, applicable as well for SQL Server.
If this is not the appropriate subforum then I kindly ask an moderator to move this thread to the appropriate sub-forum.
Thank you,
Ronnyy
SQL Indexing
Apr 26, 2006Few questions about Indexing on tables:
1) How do I find out if there is any indexing already existing on the tables?
2) How often should tables be re-indexed?
3) Can you refer me to some useful article that talks about basics of indexing and how it could affect peformance?
Thanks
Sql Indexing
Nov 10, 2006D.Harinath writes "Hi!
What is exact purpose of indexing.How it will increase the performance of the quey.
Can u give me example
*******with code********[not an theory]
For 1)Cluster and Non-Cluster indexing.
when Should use cluster and should not user cluster .What is major diffrence b/w them."