Indexes Update When Table Is Modified
Jun 8, 2004
Hello again,
Two Short questions this time,
I have a table with several indexes, currently most of them are very narrow (one column), and the question is, when I modify the table by updating a record, does all the indexes are calculated again?? Even if the modified field isn't indexed??? Or the server is smart and knows what indexes to calculate if any.
Second question, can I give to a query a low priority(In dynamic SQL), for example when I don't want my query to exploit too many system resources so it won't interfere the main system ?
Inon.
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Jan 3, 2014
I am using SQL Server 2008 R2 SP1, and BIDS 2008 SP1. The problem I am about to define does NOT happen when the report is deployed to the report server, but only within the report development environment (BIDS).
From within BIDS my reports are fed by stored procedures. The problem is when I modify a stored procedure in Management Studio, and refresh the report from within BIDS, the report does not reflect the new changes made in the stored procedure. So far I have found one clumsy solution to this problem:
1) Go to the folder where the project is saved on the file system.
2)Find the ".data" file that is associated to the particular report, then delete it. For instance, if my report name is TestReport.rdl, find the file named TestReport.rdl.data, then delete it.
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Feb 8, 2008
Hello
I have interesting situation with one of my update statement.
Update takes 2 min to run and usually updates 20000 rows.
However lately update executes for longest time - 10 hours.
After I reindex table the updates run fine again
Please advice what can cause this
I do not think reindexing table before every update is good idea
We are running SQL 2000 SP4, Windows 2003 Server
Thank you in advance for all your help
Armine
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Apr 10, 2015
I created am inventory table with few columns say, Servername, version, patching details, etc
I want a tracking of the table.
Let's say people are asked to modify the base table and I want a complete capture of the details modified and the session of the user ( ) who (system_user) is actually modifying the details.
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Jan 14, 2004
Hi all,
Sql server 7
Is there anyway to findout if list of tables that has been modified after august 2003 in a database.
Waiting for ur reply.
TIA
Adil
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Jan 9, 2001
Does anyone know how to get a table's 'last modified date' in SQL 7 ?
Sysobjects contains the 'create date', but I can't find a 'last modified date' anywhere......
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Jul 11, 2006
Hello All,I would like to get last modified timestamp for a table. Is there any way toget that information using any commands?Thanks in Advance,Muthu.
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Dec 27, 2007
Hi,
How to find out the Last Modified (Structure) in the SQL Table?. Is there any query please let me know.
Regards,
S.Balavenkatesh
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Jan 7, 2008
Hi Everybody,
i am it sutck when i am writing this sql in sqlserver2005
my requirement is to list all the table name and along with their filed name if some one modified (table definition ) for a specifc date range ?
is there any way to get these information in sql server 2005 ?
regards
sujithf
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Nov 8, 2007
I am looking for two sql scripts,1. How can i check when a tables structure was last modified? 2. How can i find the structure differences between two databases that were created the same but changed over time individualy?Looking for sql scripts to do this. Any help on either would be great.Thanks
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May 15, 2000
Hi all,
What is the best way to show when a table was last MODIFIED?
Thanks,
Stan
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Apr 28, 2004
Is anyone aware of a method of determining when a table was last modified or accessed?
Some of our databases have tables that I am sure are not being used and I would like to generate a list of tables that have not been accessed or modified for some period of time.
I looked for a system procedure but didn't see anything that satisfied my need.
Currently I rename suspect tables and wait for someone or some process to gripe, but I don't care for that method for obvious reasons.
Thanks!
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May 9, 2008
hello everybody,
i have one problem, I want to check the database table modified or not for every five minutes , how can check? please help me
Senthil
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Jul 20, 2005
I'm curious if there is a quick way to query the date/time a table was lastmodified? I appreciate any tips or suggestions provided!TIA - Rob
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Feb 21, 2014
This is my table:
ID AppName DepCode DepName Group ModifiedDate YearlyAmount
1 Nestle NS Foods Products 01/12/14 451
1 Nestle NS Foods Products 01/17/14 495
2 Oracle OR Software Info 01/24/14 279
2 Oracle OR Soft & IT Info 01/26/14 310
2 Oracle ORL Software Info 01/25/14 219
2 Oracle ORL Soft IT 01/28/14 600
MonthlyAmount Funded AppCategory Research
37.5623 Yes NE NA
41.2365 No N NA
23.2568 Yes OR InProgress
25.8333 Yes ORL NA
18.2189 Yes SOF Approved
50.0000 No IT RejectedExpected Output:
ID AppName DepCode DepName Group ModifiedDate YearlyAmount
1 Nestle NS Foods Products 01/17/14 946
2 Oracle OR Soft & IT Info 01/26/14 589
2 Oracle ORL Soft IT 01/28/14 819
MonthlyAmount Funded AppCategory Research
78.7988 No N NA
49.0901 Yes ORL NA
68.2189 No IT Rejected
I want to pick the recent modified date for DepCode and sum Yearly and Monthly Amount. I have tried this query and not able to get the output. This is the single table.
select B1.[ID], B1.[AppName], B1.[DepCode], B1.[DepName], B1.[Group],
B2.ModifiedDate, B2.YearlyAmount, B2.MonthlyAmount,
B1.[FuBded], B1.[AppCategory], B1.[Research]
FROM Business B1
INNER JOIN
(select [ID], MAX(ModifiedDate) as ModifiedDate, SUM(YearlyAmount) as YearlyAmount,
SUM(MonthlyAmount) as MonthlyAmount
from Business
Group by ID) B2
ON B1.ID = B2.ID AND B1.ModifiedDate = B2.ModifiedDate
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Mar 17, 2008
If I have a view such as: SELECT T.* FROM T
When I add a column to table T the view is not updated to reflect that change.
Furthermore, if there are other columns after the * in the view (for example SELECT T.*, GETDATE() as "My Date" FROM T) the last columns will contain incorrect data.
Is there a work around for this? An "auto-recompile when tables are modified" kind of option?
Thanks
Nick
PS: This is the script I used for testing:
create table tt (
test1 int primary key,
test2 int)
go
insert into tt (test1, test2) values (1,2)
go
create view vw_tt as select *, getdate() as "My Date" from tt
go
select * from vw_tt
go
create view vw_tt2 as select * from tt
go
alter table tt add test3 int
go
select * from vw_tt
select * from vw_tt2
select * from tt
drop table tt
drop view vw_tt
drop view vw_tt2
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Apr 10, 2006
Hello,
I am using SQL Server 2005 and ASP.NET 2.0. We have a very simple content management system where we have to keep track of date last modified for each row in all of our content tables. I know there's a "timestamp" datatype that is used for replication scenarios, but is there anything similar that I can use to set up a date_modified column for each of my content tables that will automatically update with GETDATE() whenever anything in a given row is updated?
Or do I have to create a date_modified column of smalldatetime datatype and write a trigger on update for EVERY single table of content that I have in the database? It seems there should be an easier way to do this than to write 20 triggers for my 20 content tables.
Thanks!
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Apr 17, 2015
I've a table with more columns and 1 identifier. I need to write this table when a modified row is detecting respect to the columns not to the identifier.
So I've created a temporary table to put the potential rows to write on the real table, but I want to detect the modified rows. I've thought to use the checksum function, but I don't know how to use it and if it could be useful in this scenario.
Moreover, in the temporary table I've collected daily the rows to write: the first day a row could have a value respect to his columns, the next day a different value and the next one the same value respect to the first day.
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Jul 23, 2005
I need a little help here..I want to transfer ONLY new records AND update any modified recordsfrom Oracle into SQL Server using DTS. How should I go about it?a) how do I use global variable to get max date.Where and what DTS task should I use to complete the job? Data DrivenQuery? Transform data task? How ? can u give me samples. Perhaps youcan email me the Demo Package as well.b) so far, what I did was,- I have datemodified field in my Oracle table so that I can comparewith datelastrun of my DTS package to get new records- records in Oracle having datemodified >Max(datelastrun), and transferto SQL Server table.Now, I am stuck as to where should I proceed - how can I transfer theserecords?Hope u can give me some lights. Thank you in advance.
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Oct 10, 2007
Hi
Any one please tell me is there any possible way to identify the table modified date.
I have checked the table created date from sysobjects or by right click properties. my requirement is to identify the exact date of table modification and column creation,alter dates.
Is there any such provision in sql server 2000 or 2005 , My application is in sql server 2000.
I need to confirm this because some database structure modification has affected my application and causing dataloss i need to check with the date of structural change of table and lost data date
can any one help
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Jun 29, 2000
I am using the Maintencance Plan wizard, but it only allows me to either select the "reorganize data and indexes" option or the "update statistics" option (in the Optimizations tab). I can't select both of them. What is the reason for this?
joe
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Sep 28, 2015
We are planning to standardize our newly deployed sql server, As a part of it we have configured 2 maintenance plans 1) Update Statistics which runs daily and 2) Index Reorganize which runs on weekly.
Apart from above, any other things to be in place for better maintenance of the sql server.
Also, how to Index Rebuild activity for clustered indexes requires any downtime.
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Jun 25, 2015
I have a requirement to only rebuild the Clustered Indexes in the table ignoring the non clustered indexes as those are taken care of by the Clustered indexes.
In order to do that, I have taken the records based on the fragmentation %.
But unable to come up with a logic to only consider rebuilding the clustered indexes in the table.
create table #fragmentation
(
FragIndexId BigInt Identity(1,1),
--IDENTITY(int, 1, 1) AS FragIndexId,
DBNAME nvarchar(4000),
TableName nvarchar(4000),
[Code] ....
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Nov 5, 2015
If I rebuild some indexes that are above 30% of average fragmentation, should I after that update statistics?
Also, How can I see if I Need to update statistics^on the tables of my database?
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Mar 7, 2014
Why the Indexes on table slow down the DML operation on table, what is the exact reason?
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Jan 6, 2004
Hi there,
Can someone tell me if it is possible to add an index to a Table variable that is declare as part of a table valued function ? I've tried the following but I can't get it to work.
ALTER FUNCTION dbo.fnSearch_GetJobsByOccurrence
(
@param1 int,
@param2 int
)
RETURNS @Result TABLE (resultcol1 int, resultcol2 int)
AS
BEGIN
CREATE INDEX resultcol2_ind ON @Result
-- do some other stuff
RETURN
END
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Oct 6, 2006
Hi
I am using SQL Server 2005 Developer Edition.
I want a list of the following things from the database: -
Table Name , FileGroup Table resides on
Table Name, Index Name, FileGroup index resides on
To put it simply, consider the following example:-
Lets say I have a table XYZ in my database created on Filegroup F1. It has a PK PK1 nonclustered index on Filegroup F2.
List1
-------
XYZ F1
List2
---------
XYZ PK1 F2
Please do not tell me of sp_help <table> option
Regards
Imtiaz
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Jun 14, 2007
Hi,I have table with three columns as belowtable name:expNo(int) name(char) refno(int)I have data as belowNo name refno1 a2 b3 cI need to update the refno with no values I write a query as belowupdate exp set refno=(select no from exp)when i run the query i got error asSubquery returned more than 1 value. This is not permitted when thesubquery follows =, !=, <, <= , >, >= or when the subquery is used asan expression.I need to update one colum with other column value.What is the correct query for this ?Thanks,Mani
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Feb 18, 2007
I'm looking for information on how to add indexes to a table in a SQL Server 2000 Database, why add them etc? Any source of good information on the web regarding this?
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Sep 20, 2005
is there a way to drop all the indexes on a table other than listing them out separately in a drop index statement?
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Jul 1, 2014
I'm working to improve performance on a database I've inherited, and there are several thousand indexes. I've got a list of ones which should definitely exist within the database, and I'm looking to strip out all the others and start fresh, though this list is still quite large (1000 or so).
Is there a way I can remove all the indexes that are not in my list without too much trouble? I.e. without having to manually go through them all individually. The list is currently in a csv file.
I'm looking to either automate the removal of indexes not in the list, or possibly to generate the Create statements for the indexes on the list and simply remove all indexes and then run these statements.
As an aside, when trying to list all indexes in the database, I've found various scripts to do this, but found they all seem to produce differing results. What is the best script to list all indexes?
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Sep 1, 2006
How can I list indexes with a (SQL) query ?
Thanks
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