Minimizing The Entries To Transaction Log
Oct 8, 2007
Hi All,
I have a DB of transaction log grown to 19GB. I have some questions.
1. Is there any way that we can minimize the entries to transaction log.
2. If i use Transactions in my stored procedure will it be usefull to automatically remove the transaction entries in transaction log once after the commit transaction is given.
3. Is there a way to reduce my current transaction log and not to grown in such a manner futher.
Thanks in Advance
Sri
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Oct 8, 2007
MS SQL Server 2005
I have a table in our system that hold temporary data for doing calculations. It will process several million records in it. each time they forecast our products.....
Is there any way to have the SQL server NOT add these transactions to the transaction log, since I'm going to wipe the data anyway? I'd like to be able to pick and choose the tables that are 'backed up' into the transaction log...
Please advice. Thanks
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Feb 12, 2004
are there any tools which allow the viewing of the transaction logs detail (or backups of the logs)? if so, recommendations and comments would be appreciated.
thanks.
joe
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Jun 19, 2001
We have a WEB site and my BOSS wants that It should work like me (24x7). Any time when one SQL Server go down , another should take its place. What will be the best way to do this? Can any body guide me in DETAIL. or refer to me at any good material (STEP BY STEP)
Thanks
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Aug 20, 2004
Hello all,
I am working on an Access 2000 project that is used to generate reports on archived sales data. This app uses linked tables that are pointing to some SQL 2K tables. Some of the queries are large and end up creating a table lock when executed, blocking all other users from using the app until it has finished executing the query. I would like to have queries that read data ignore this lock on the table but do not know of a way to do this using linked tables in Access 2000. I would use a NOLOCk table hint but need something else for this issue.
Any ideas?
Thanks
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Dec 2, 2013
If I wanted to search for Jobs as a particular status (e.g. 0130) and wanted to keep the jobs at this status until it has reached 0500, 0125, or 0900 in it's subsequent status log entry, how can I write the SQL for it to achieve it?
I have the following SQL which searches for the Jobs at 0130, but don't know how to develop it further to search on the requirement above.
------ SQL -------
SELECT
job.job_number,
(SELECT MAX(jsl.job_log_number)
FROM job_status_log jsl
WHERE
job.job_number = jsl.job_number AND
jsl.status_code = '0130') as Last_Early_Warning_Status_Entry
[code].....
In the job_status_log table above, there is a job_log_number field which increments by 1 when there is a new status log entry.
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May 4, 2015
I have a main table called Stock for example.
One process ( a service ) inserts data into this table , as well as updates certain fields of the table periodically.
Another process ( SQL Job ) updates the table with certain defaults and rules that are unknown to the service - to deal with some calculations and removal of null values where we can estimate the values etc.
These 2 processes have started to deadlock each other horribly.
The SQL Job calls one stored procedure that has around 10 statements in it. This stored proc runs every minute. Most of them are of the form below - the idea being that once this has corrected the data - the update will not affect these rows again. I guess there are read locks on the selecting part of this query - but usually it updates 0 rows - so I am wondering if there are still locks taken ?
UPDATE s
SET equivQty = Qty * ISNULL(p.Factor,4.5) / 4.5
FROM Stock s
LEFT OUTER JOIN Pack p
on s.Product = p.ProductId
AND s.Pack = p.PackId
WHERE ISNULL(equivQty,0) <> Qty * ISNULL(p.Factor,4.5) / 4.5
The deadlocks are always between these statements from the stored procedure - and the service updating rows. I can't really see how the deadlocks occur but they do.
Another suggestion has been to try and use an exists before the update as below
IF EXISTS( SELECT based on above criteria )
( UPDATE as before )
Does this reduce the locking at all ? I don't know how to test the theory - i added this code to some of the statements, and it didn't seem to make much difference ?
Is there a way to make a process ( in my case the stored procedure ) - give up if it can't aquire the locks rather than being deadlocked - which leads to job failures and emails etc ?
We are currently trying to filter down the data that is updated to be only the last few months - to reduce the amount of rows even analyzed - as the deadlocking does seem to be impacted by the number of rows in the tables.
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Apr 21, 2007
I am in the process of designing a SQL 2005 database with tables that may hold several hundreds of millions of rows.
Due to various constraints, I am trying to save as much space as possible by optimizing the size of a row. Currently one row contains the following columns:
byte(4), byte(3), byte(3) = 10 bytes.
Adding 4 bytes for the row header, plus 3 bytes for the null bitmap (as described in BOL) I am ending up with 17 bytes/row. In a real world test it was an average of 18.3 bytes/row.
There are no indexes, no primary key and all columns are not NULL. Hence my question: since no column allows a null value, is there a possibility to "remove" the 3 bytes Null Bitmap?
Is there any other way to shave off one or two more bytes by using a clustered index etc?
Thanks
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May 25, 2006
I am using Naive Bayes, Decision Trees, and Neural Net (SSAS 2005) to predict which of two states each record belongs to.
How can I enforce a different penalty for a false positive versus a false negative ? (I am assuming that in some sense the mining algorithms can then minimize the total penalty).
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May 31, 2008
Hi All
I'm getting this when executing the code below. Going from W2K/SQL2k SP4 to XP/SQL2k SP4 over a dial-up link.
If I take away the begin tran and commit it works, but of course, if one statement fails I want a rollback. I'm executing this from a Delphi app, but I get the same from Qry Analyser.
I've tried both with and without the Set XACT . . ., and also tried with Set Implicit_Transactions off.
set XACT_ABORT ON
Begin distributed Tran
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.TRANSACTIONMAIN
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.TRANSACTIONMAIN
set REPFLAG = 0 where REPFLAG = 1 and DONE = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.WBENTRY
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.WBENTRY
set REPFLAG = 0 where REPFLAG = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.FIXED
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.FIXED
set REPFLAG = 0 where REPFLAG = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.ALTCHARGE
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.ALTCHARGE
set REPFLAG = 0 where REPFLAG = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.TSAUDIT
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.TSAUDIT
set REPFLAG = 0 where REPFLAG = 1
COMMIT TRAN
It's got me stumped, so any ideas gratefully received.Thx
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Feb 22, 2007
I have a design a SSIS Package for ETL Process. In my package i have to read the data from the tables and then insert into the another table of same structure.
for reading the data i have write the Dynamic TSQL based on some condition and based on that it is using 25 different function to populate the data into different 25 column. Tsql returning correct data and is working fine in Enterprise manager. But in my SSIS package it show me time out ERROR.
I have increase and decrease the time to catch the error but it is still there i have tried to set 0 for commandout Properties.
if i'm using the 0 for commandtime out then i'm getting the Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.
and
Failed to open a fastload rowset for "[dbo].[P@@#$%$%%%]". Check that the object exists in the database.
Please help me it's very urgent.
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Feb 6, 2007
I am getting this error :Distributed transaction completed. Either enlist this session in a new
transaction or the NULL transaction. Description:
An unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the error and
where it originated in the code. Exception Details:
System.Data.OleDb.OleDbException: Distributed transaction completed. Either
enlist this session in a new transaction or the NULL transaction.have anybody idea?!
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Dec 22, 2006
i have a sequence container in my my sequence container i have a script task for drop the existing tables. This seq. container connected to another seq. container. all these are in for each loop container when i run the package it's work fine for 1st looop but it gives me error for second execution.
Message is like this:
Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.
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Jan 8, 2008
Hi,
i am getting this error "Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.".
my transations have been done using LINKED SERVER. when i manually call the store procedure from Server 1 it works but when i call it through Service broker it dosen't work and gives me this error.
Thanks in advance.
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Dec 1, 1998
Below are the registry entries I want to update but "Trusted_Connection" = "Yes" does not seem to have any effect when it is run. Any ideas??
REGEDIT4
[HKEY_CURRENT_USERSoftwareODBCODBC.INIAAED]
"Driver"="C:WINNTSystem32sqlsrv32.dll"
"Description"="AAED"
"Server"="SIM0108"
"Trusted_Connection"="Yes"
[HKEY_CURRENT_USERSoftwareODBCODBC.INIODBC Data Sources]
"AAED"="SQL Server"
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Jan 27, 2005
Hi, I am searching for the most easy SQL solution:
Lets say i have 500000 rows of cars in one table with 30000 different car ID's.
This table contains no keys, no date values, but I need the last row of these 30000 different cars. How do I get them without adapting table structure and without using cursors ?
Thx for reply.
dajm
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Sep 24, 2006
Hello
my table :
Report :
R_id (PK)
RName
RDate
i am having a few 10.0000 lines and i want to keep the last 10 (or less if not in the table) rows maximum for each name
i can have 100 report by name (100 rows with the same name and of course R_id and RDate are different)
how can i do it ?
thanks a lot for helping
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Mar 30, 2012
I have a table which stores phone numbers of a customer in a table.
Say this table is as below
CustomerName - PhoneNumber
Customer 1 - Phone number 1
Customer 2 - Phone number 2
Customer 2 - Phone number 3
Customer 3 - Phone number 4
What would be the best approach to prevent adding another entry against Customer 2. I should be able to add new customers and add multiple phone number against all other Customers. The restriction should be only against Customer 2.
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May 14, 2004
I am trying to pull the last three entries from a table in my database but I am having trouble writing the correct query. The database has multiple entries for each item in my database but I want to pull just the last three for each item. I have tried the TOP function with the items ordered in descending order but that only works when I define each item seperatley. I need to know how to pull the last three entries for every item I have in the table.
Thanks,
Tim
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Nov 8, 2005
Hello
Without technical information and DB design, I wish to know the maximum entries in MS SQL in million. I guest for access are a limit of 2 million and a 2GB DB.
How much for MS SQL in max. entries and how much in GB?
A lot of thx for your feedback.
Dominique Javet
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Mar 28, 2006
I'm extracting data from a log (log_history) of patients where nurses perform various actions on a call, such as assessing and reassessing, despatching etc. This is the script:
Select
L.URN,
LH.THE_TIMESTAMP,
LH.ACTION_TYPE,
LH.ACTION_BY,
LH.ACTION_REQD,
LH.NOTE,
em.position_type_ref
From
LOG L
Join Log_history LH on (L.URN = LH.LOG_URN)
left outer join employee em on (em.code = LH.action_by)
Where
(L.Taken_at >= :DateFrom and L.Taken_at <= :DateTo) and (LH.ACTION_TYPE = 'D') and (em.position_type_ref ='NU')
Order By
L.URN ASC, LH.THE_TIMESTAMP DESC
The result I get shows duplicate 'timestamp' entries and I only want to return unique timestamp entries. Does anyone have any ideas. I'm self taught and have hit a wall
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Jun 12, 2006
Hi,
I need help desperately. The following is an example of the data that I have.
I have two tables one name Customers and the other named Orders. The tables have the following attributes
CUSTOMER
CustomerNum, CustomerName, OrderNum
ORDER
OrderNum, OrderDesc, CustomerNum
Bare in mind that the CustomerNum can have multiple customers attached to it, example a whole family (I know bad database design but it's too late to change) Let's use the following info for the tables respectively
CUSTOMER
0001 Sharon Bigbsy 1234
0001 Dale Bigbsy 1235
0001 Omar Bigbsy 1236
ORDERS
1234 Chips 0001
1235 Gatorade 0001
1236 Candy 0001
The query i'm using is select Customer.CustomerNum, Customer.CustomerName, Orders.OrderDesc from CUSTOMER, ORDERS where CUSTOMER.CustomerNum = ORDER.CustomerNum
The results are as follows
0001 Sharon Bigbsy Chips 1234
0001 Sharon Bigbsy Gatorade 1235
0001 Sharon Bigbsy Candy 1236
0001 Dale Bigbsy Chips 1234
0001 Dale Bigbsy Gatorade 1235
0001 Dale Bigbsy Candy 1236
0001 Omar Bigbsy Chips 1234
0001 Omar Bigbsy Gatorade 1235
0001 Omar Bigbsy Candy 1236
It's giving all the orders place to each customer name but I need only the following
0001 Sharon Bigbsy Chips 1234
0001 Dale Bigbsy Gatorade 1235
0001 Omar Bigbsy Candy 1236
I'm using SQL in MS Access 2003. Please disregard the abnormalities of the tables, it's someone else's work I inherited with over 6000 entried.
Any help will be greatly appreciated
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Feb 7, 2007
I have an application that allows the user to enter data into a table. There are multiple users so I put in some code that, I thought, would keep 2 users from creating a new record at the same time. The IDs for the records are identical and this is causing a problem.
The IDs are in the format of ####-mmyy. at the start of each month the #### part goes back to 1.
We tried a test today where we had 2 users click on the New button at exactly the same time. The IDs that were created were identical. Is there anyway on the database that I can prevent this from happening?
Here is how I create the new record id:
I get the MAX(ID) from the table
I add 1 to the ID and then insert a new record with the new ID into the table.
Any help is appreciated.
Thanks,
enak
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Jan 7, 2008
Hi all
can some one there please let me know how to configure error logs. what i observe on some of the servers error log got entries for all conenction, database backup, logbackup etc..... but on some there r entries only about database backup.
thanks in advance
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Jul 20, 2005
Hello,does anyone know what could be wrong? There's a lot of similar entriesin the SQL Server current log:2004-01-21 17:54:00.01 spid57 Starting up database 'DB_NAME'2004-01-21 17:54:06.45 spid57 Starting up database 'DB_NAME'2004-01-21 17:54:59.13 spid56 Starting up database 'DB_NAME'There are hundreds of similar entries that repeat every few seconds. Thedatabase works quite slowly and the users get 'Connection timeout'message very often.Thanks for any advice....:: fabio
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Sep 26, 2007
Hi All
In my application i have to get the data from .csv file. My requirement is that file may consists of duplicate entries
I ant to remove the dup entries and i want to place in the table.
Waiting for valuable replies
Thank u
Baba
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Sep 14, 2007
I have an issue where certain parts of data are repeated several times after i create my query. Without providing my SQL code for now could anyone suggest possibly the main reason(s) for data being duplicated?
Thanks
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Jan 20, 2008
Hi,I have a form that should show 2 pictures based on table entries.I want those 2 pictures to be randomly selected based on a database table. So, my table has all the entries, and I want to pull out a random entry that has been approved to display it.Can someone help me with the sql query?I can do SELECT VoteId FROM tblVotes WHERE Approved=True..But how do I make selection a random one that changes every time the user gets another entry?
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Mar 18, 2008
Hello,
I have a reference table. This table has an effective date and end date, and I need to get a single set of values at a point in time. Suppose the following hotel rating values are the values that I want to pull out of the table:
1 Star2 Star
3 Star
4 Star
5 Star
This value has other information associated with it (benchmarks and such) and so it's possible that one of the 2 star entries gets end-dated, and then a new 2 Star entry gets created with an effective date and no end date.
How can I query so that I only get one 2 Star entry at any point, and get the point in time where the date is between the effective and end date, but only pull back a single set of entries, one distinct rating value. So, suppose the first entry is end-dated 7/1, if I look at old data, I want to see the old benchmarks and so I want the previous entry end-dated 7/1; otherwise, I want to see the new end-date, with the new 2 star entry with no end date.
How do I do that? Make sense?
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May 8, 2008
I am a newb at ms sql and was hoping someone could help me
eliminate duplicate PRODUCT.PRODUCT from this statement. I have tried using DISTINCT with the same results.The ProductImage table is causing this because
the duplicates are from the PRODUCT.PRODUCT that have more than 1 image.
If anyone could rewrite this statement so I can learn from this, it would
be most appreciated!
Thank you for your time
<asp:SqlDataSource ID="SqlDataSource3" runat="server"ConnectionString="<%$ ConnectionStrings:LocalSqlServer %>"SelectCommand="SELECT Product.Product.productid,Product.Product.catid,Product.Product.name,Product.Product.smalltext,Product.Product.longtext,Product.Product.price,Product.ProductSpecial.saleprice, Product.ProductSpecial.feature,Product.ProductImage.imgId, Product.ProductImage.imgUrlFROM Product.ProductINNER JOIN Product.ProductSpecialON Product.ProductSpecial.productid = Product.Product.productidINNER JOIN Product.ProductImageON Product.Product.imgid = Product.ProductImage.imgId"></asp:SqlDataSource>
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May 21, 2008
hi, i have a table where i need to update all entries (columns/rows) in 1 queryto make this one clear, if i have table_id firstname lastname1 clayton111 dylan1112 phoebe111 miller111 from the above example, i just want to eliminate all the 111 from the firstname, lastname fields, however, im not sure how to do that in a single query. i asked this because i have like 100 rows and each entries have "111" and i need to remove those. thanks
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Mar 27, 2001
Is there a way I can have all entries in a table automatically in caps once entered by user, import or any other way ?
Thanks a lot in advance.
-PFD
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Feb 29, 2000
I have a field called RegId. RegId is of datatype NVARCHAR (20).
RegId
-----
12322
2122111
23423
etc
etc
I want to run a query to find out if there are duplicate entries in this field.
Any ideas on how I can achieve this?
Thanks in advance,
Anthony
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