Huge Table Backup
May 13, 2008Hello
i want to ask about the huge table(table with many tera records) backup time cost , any one can help me please in determining the time cost nearly
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Huge Deletes In A Huge Table
Apr 3, 2000SQL 7 SP1 NT4 SP5
I have a TRANSACTION table with 150 million rows.
I have a USER table.
Each user has about 600 records in the TRANSACTION table.
The TRANSACTION cluster index is on USERID + RECID . The second index is on USERID + Fieldx + Fieldy.
The TRANSACTION table gets about 1.4 million inserts in a normal day and about 40,000 updates.
I want to go through the USER table and delete all users who have not visited me in a while.
I want to do this without substantially hindering performance in a production environment. I can perform this over a week period or two if needed.
The best way I thought of doing this was to grab x amount of users in a cursor and loop through deleting their corresponding TRANSACTION records.
Does anyone have any ideas on a better way. What is going to happen to my indices during this time ?
Thanks !!!
SQL Backup File Is HUGE!!!
Sep 25, 2004One of my databases is approxiamtely 1.5 GB's but when I run a backup the backup file explodes to 38GB's.
What is the proper usage of Shrink Database, is this safe or is there another method to reduce the size?
Huge Backup File
May 12, 2000I am using SQL Server 7 and have about 5 databases. One of them has a data file of about 10 Meg, and most of the others are larger. I do a nightly backup to both a local and mapped drive. On both, the size of the backup file for this database is more than 500 Meg, but the rest appear to be an appropriate size. Does anyone know why this would be happening? The database works fine, it does not get a lot of insert/delete activity and I run DBCC every weekend. If anyone has any ideas I would sure like to hear from them.
View 1 Replies View Related'transaction Log Backup' File Is Huge
May 19, 2007Hello all,
I have inherited a SQL 2000 server, and am therefore an absolute beginner of SQL2000.
I know this has been covered before, but I don't know how to use the KB as I don't know how to run the commands/script.
http://support.microsoft.com/kb/272318/
I can no longer backup the SQL database because the 'transaction log backup' file is about 17GB. The SQL database is only about 2GB! The partition that it is backed up onto fills up every day.
Can anyone help me?
Thanks
Puskas
Problem On Huge Table.
Mar 14, 2001We have a huge table which has 12 million records. And when I run the following script, it took 50 hours. Is there anyone who can help? Thanks.
update TableA
set In=e.In, EA=e.ea, We=e.we
from TableA c, TableB e
where c.code=e.code
TableA 12,000,000 records.
TableB 750,000 records.
And have clustered index on each code field.
Alter A Huge Table
May 18, 2001I need to alter a table (expand the column size for varchar(10) to varchar(255)) and the table has 200 million rows.
Please suggest me the best and the fastest method to achieve it. The database is on SQL 7.0
Thanks
Horizontal Partition Of A Huge Table
Jul 1, 2005Hi,
I have a table with 52 million rows which resides on Primary file group in my database. Because of huge number of rows the performance has gone very down and I would like to break the table into parts.
Can anyone suggest me the steps for doing the same and the number of parts that should be made. It is named as Account_Transactions and contains information of Policies in an insurance database.
Rajat
Frequency Counts From Huge Table
Mar 12, 2008Hey guys,
I have a table with about 80 columns and 400 millions records. Each columns has different responses that I need to get frequency for. I need to get counts for each response from all the columns... I have a query that does it, but it will run forever... what is the best way to do so?
My starting query:
select res, sum(cnt) from
(
select col1 res, count(*) as cnt from table1 with (nolock)
group by col1
union all
select col2 res, count(*) as cnt from table1 with (nolock)
group by col2
........................
select col80 res, count(*) as cnt from table1 with (nolock)
group by col80
)a group by res
Does DB Size Decrease When I Delete A Huge Table ??
Jan 15, 2004Hi,
My DB size (Right click on DB Name, Data Files tab, Space Allocated field) was 10914 MB.
I delete a huge table (1.2 million records * 15 columns).
I checked the db size again. It didnt change.
Shouldn't it decrease because I delete a huge table ??
Urgent! Please Help! Deleting Data From A Huge Table
Mar 16, 2004I have a huge table with 4 primary keys on it. I need to delete the data from this table ( approx. 5.6 millions records to be deleted). It takes a hell lot of time to delete it by normal query.
Can someone please suggest me a better way?
Any help will be appreciated.
How To Select Specific 2 Rows Out Of A Huge Table
Jul 24, 2013I have a very large table , and from that table I need just 2 records with column1 = 'A' and column1 = 'B' .
Here I don't think if I can not use OR or IN or Case operators because I need exactly 2 records not more.
Fastest Way To Move Huge Table Across Servers
Mar 23, 2008Hi Guys,
What is the fast way to move huge table (77 million) records with 25 columns across servers? The servers are not linked though.
Thanks for the help.
The Best Way To Delete A Huge Number Of Records In Table
May 30, 2008Hi Everyone,
We have a large test database with million of records for more than company site Code. Sometime we want to refresh the data of that database for one or more site Codes.
In order to do that I have to delete all records of the site code we want to refresh on the test database first then copy a new set of data from production database over. Since we refresh data based on the site code therefore I have to use the Delete command instead of Truncate.
Since this is a huge database with thousand of tables and million of records per table I have a performance issues with delete command. So what would be the best to delete a large number of records without writing any information to database log file?
FYI: The Recovery model of this database is Simple
Regards,
Jdang
Truncate A Huge Table Having 21 Millions Of Rows
Nov 19, 2015SQL Server: 2008 R2
Question A : I need to truncate a table, it has 21 millions of rows and it has a size of 14 GB.
1- How do I find out if this table is not being referenced by a FOREIGN KEY?
2- Does it Participates in a indexed view?
3- Is being published by using transactional replication or merge replication?
Question B: How do I safely truncate that table?
PULL Huge Table From SQL Server Problem
Jul 12, 2007
Hey Guys
I have meet the same problem, too.
I create a table with 1,380,000 rows data,
the db real size about 114 MB.
The primary key size is nchar(6).
When I use RDA pull, I found that the primary
key in the PDA disappear. So, It took a long time
to get query response.
But when I delete some rows to 680,000 rows of data.
After I pull, The primary key can pull from the SQL Server.
PS: I didn't change any code. Just delete some rows.
Is that SQL-Mobile's bug??
PS: 1.Database and Temp Database limitation both are 384MB
2.If I use query analyzer to add primary key it works! so strange!!
3.Pull process return "S_OK".
4.After Pull process finished, the db connection still alive. It seems not like
time out problem.
5.Local Connection String:"Data Source='%s\%s';SSCEatabase Password='%s';SSCE:Encrypt Database='true';SSCE:Max Database Size=384;SSCE:Temp File Max size=384;SSCE:Temp File Directory=%s"
Database Table Design For Huge Number Of Columns
Jan 24, 2008Hi
I have a table (Sql server 2000) which has 14 cost columns for each record, and now due to a new requirement, I have 2 taxes which needs to be applied on two more fields called Share1 and share 2
e.g
Sales tax = 10%
Use Tax = 10%
Share1 = 60%
Share2 = 40%
So Sales tax Amt (A) = Cost1 * Share1 * Sales Tax
So Use tax Amt (B) = cost1 * share2 * Use tax
same calculation for all the costs and then total cost with Sales tax = Cost 1 + A , Cost 2 + A and so on..
and total cost with Use tax = Cost1 +B, Cost 2 +B etc.
So there are around 14 new fields required to save Sales Tax amt for each cost, another 14 new fields to store Cost with Sales Tax, Cost with Use tax. So that increases the table size.
Some of these fields might be used for making reports.
I was wondering which is a better approach out of the below 3:
1) To calculate these fields dynamically while displaying them on the User interface and not save in DB (while making reports, again calculate these fields dynamically and show), or
2) Add new formula field columns in database table to save each field, which would make the table size bigger, but reporting becomes easier.
3) Add only those columns in database on which reports needs to be made, calculate rest of the fields dynamically on screen.
Your help is greatly appreciated.
Thanks
Question About Log File Size When Alter Huge Table
Oct 31, 2005I have the next question, and i would like to hear what do you thinkabout, and if is there a better solution for "my problem"here is the question, I have a huge table with 60GB of data (imagefiles). The problem happen always when i try to ALTER the structure ofthe table. For example I change a field char(3) to char(4)...thesqlserver then performs the "alter table" command...that must besomething similar than "insert into the new table + drop the actualtable" and for that I need about 60GB o space for my LOG file, andtakes hours to complete the operation.Is this the only way to alter a single field in my table??I would like to heard you opinions...Thanks..ALberto
View 2 Replies View RelatedDatabase Table Design For Huge Number Of Columns
Jan 24, 2008Hi
I have a table (Sql server 2000) which has 14 cost columns for each record, and now due to a new requirement, I have 2 taxes which needs to be applied on two more fields called Share1 and share 2
e.g
Sales tax = 10%
Use Tax = 10%
Share1 = 60%
Share2 = 40%
So Sales tax Amt (A) = Cost1 * Share1 * Sales Tax
So Use tax Amt (B) = cost1 * share2 * Use tax
same calculation for all the costs and then total cost with Sales tax = Cost 1 + A , Cost 2 + A and so on..
and total cost with Use tax = Cost1 +B, Cost 2 +B etc.
So there are around 14 new fields required to save Sales Tax amt for each cost, another 14 new fields to store Cost with Sales Tax, Cost with Use tax. So that increases the table size.
Some of these fields might be used for making reports.
I was wondering which is a better approach out of the below 4:
1) To calculate these fields dynamically while displaying them on the User interface and not save in DB (while making reports, again calculate these fields dynamically and show), or
2) Add new formula field columns in database table to save each field, which would make the table size bigger, but reporting becomes easier.
3) Add only those columns in database on which reports needs to be made, calculate rest of the fields dynamically on screen.
4) Create a view just for reports, and calculate values dynamically in UI and not adding any computed values in table.
Your help is greatly appreciated.
Thanks
Transact SQL :: Append A Column To The Huge Transaction Table
Oct 18, 2015I want to append the column to the transaction table(60 million records in it.) ..
Our transaction table is being used in production.. but i have very less amount of time ..
Instead of alter table.. (IF we use the alter to take backup of table and do the processing it will take more time). Is there any way to append the column to the transaction table ..
SQL Server 2014 :: Huge Number Of Rows In Table Spool
Jul 6, 2015I have a CTE query against a table with 32K rows that runs fine in 2008R2. I am running it in 2014 Std Ed. against the same data and it runs very slowly. Looking at the execution plan I think I see what's contributing to the slowness.
Note that the "actual number of rows" is some 351M...how is this possible?
the query:
declare @amts table (claim int,allowed decimal(12,2),copay decimal(12,2),deductible decimal(12,2),coins decimal(12,2));
;with unpaid (claimID) as (select claimID from claim where amt+copay + disct+mm + ded=0)
insert @amts
select lineID, sum(rc), sum(copay), sum(deduct),
case when sum(mm)>0 and (sum(mm)<sum(mmamt)) then sum(mm) else 0 end
from claimln
where status is null
and lineID not in (select claimID from unpaid)
group by lineID
it's like there's some massively recursive process going on?
SQL 2012 :: Apply Primary Key On A Huge Table So Downtime Is Minimal?
Jul 30, 2015I have a table (named table1) with 20million rows. It takes around 11 minutes to apply the primary key to this table. There are some tables with over 100 million rows so based on the previous time if my calculations are correct it will take close to an hour apply this primary key for tables with around 100 million rows.
My current solution is to create another table (named table2) with no indexs or primary keys. Pump over only like 5 days worth of data, then apply the primary key. Then have a script that will eventually populate table2 with the rest of the data gradually. When I say gradually I mean like insert like every 100k per hour or something. Keep in mind this table2 is heavily updated with new records.
Transact SQL :: Table Locking Happening When Removing Huge Data
May 14, 2015declare @error int, @rowcount int
select @rowcount = COUNT(1) FROM STG_BCDR;
while @rowcount > 0
begin
BEGIN TRAN Deletion
[code]....
Above code i try to delete records batch by batch to avoid table locking at BCDR table.total records in this BCDR table is 40,000 records. However I run the code at execution plan, the BCDR table still clustered index scan which means that the locking still happend.
If i change the delete top (5000)...... to delete top (5).... then thre is clustered index seek, which is good..The problem here is each time only delete top 5 records which is means it will realy take very long time to remove those data.
how to cater the situation inorder for me to delete those huge data without table locking happend. If table locking happend , then other user will not be able to access this table at the same time.
How To Work With Huge Amount Of Records In A Table Using MSSQL Server 2000?
Dec 21, 2005In
one of our forth coming projects, with ASP.Net/C#/MSSQL Server, We have
to deal with a Business table having about 15 millions of records. We
want to know, that which methodologies should we adopt, both regarding
front end and back end perspective, so the site could give optimised
performance. Also in place of a Dedicated Server, the Hosting Company
provides MSDE (that come with .net). Will this create any problem with
this project, that have such a huge table? Should we go for some
advanced database technique, such as, Clustering, Spliting Tables, etc.
Followings are the fields that the business table contains:
ID, Category ID (which comes from a Category table, each business is
under a category), BusinessName, SignupDate, Address1, Address2, Phone
Number,
Hours Of Operation, Years in Business, LicenseNumber, DiscountCoupon, Website
BACKUP LOG Cannot Be Performed Because There Is No Current Database Backup. BACKUP LOG Is Terminating Abnormally.
Jan 31, 2008
Hi there
I'm getting this message on my third automated backup of the transaction logs of the day. Both databases are in full recovery mode, both successfully backed up at 01.00. The transaction logs backed up perfectly happily at 01:30 and 05:30, but failed at 09:30.
The only difference between 05:30 and 09:30's backups is that the log files were shrunk at 08:15 (the databases in question are the ones that sit under ILM2007, and keeping the log files small keeps the system running better).
Is it possible that shrinking the log files causes the database to think that there hasn't been a full database backup?
Thanks
Jane
Huge Log
May 27, 2007Dear all,
i have problems with log .
the mssql write 4 G log so plz how can i Eliminate log huge size
Restoring A Table From Backup Table
Mar 28, 2015I have a table called Lab_results and I have backed it up to "lab_results_backup032215". how do I restore the back up to the original table. I tried :
select * into Lab_results from lab_results_backup032215
But get error saying the table already exist?
Huge Log Files
May 9, 2008I have SQL Server 2005 Express Edition with Advanced Services running on a small web server. It all runs fine, but every now and then the log files grow and grow and eventually use up all the disk space of 30GB. As a quick fix, restarting SQL a couple of times clears out the logs and everything is up and running again. Any ideas on how to stop this happening?
View 5 Replies View RelatedHuge Transaction Log - Do I Need This?
Nov 19, 2004I just peeked at my DNN setup and I found that I have a transaction log about 98 gigs large, compared to a DNN database that is only about 250 megs. Crazy, huh?
Do you happen to know what I need that transaction log for? Can I just delete it or will it break my SQL db? Is there a way that I can keep only maybe a week of transactions in it so it doesn't grow so dang large?
Thanks in advance for your response!!
Tim x 4
(always learning!)
Huge Transaction Log
Aug 10, 2000One of my production databases is currently 51 mb. The transaction log is well over 5 gig. I have tried truncating and then shrinking the log through the use of SQL utilities. This does not work! How can I quickly resolve this problem without tampering with the production environment?
Thanks in advance.
Ray Reinders
Huge Transaction Log
Sep 30, 2002I am not a DBA and I run a personal web site that has gotten pretty large. I have never done anything to maintain my sql server, and now my transaction log is 10 Gigs and my data is only like 300 Megs. I am starting to get a memory leak with the sql service. What should I do? Is it bad to have a huge transaction log. I am not familiar with any of this stuff, so someone please point me in the right direction.
View 3 Replies View RelatedWhat Should I Do With The Huge Log File
Oct 11, 2004Hi all,
I found my database log file is 26GB and the database file is just about 280MB. We are doing full backup everyday. However, my sql server seems running very slow now and please advise:
1. How can I decrease/truncate my log file?
2. Would the huge size of the log file be the reasons slowing up my sql server?
3. Would anyone give me direction knowing more on the transaction log?
Thank you and appreciated!
Log File HUGE!!
Oct 30, 2007Hi guys, its my first post! Its also like my first time really diving into sql. We are using sharepoint on site here along with sql server 2005, one of our log files is 255 GBs and needs to be made smaller very fast!! We are almost out of disk space and the log is growing fast.
I am very new to sql and dont even know where to go to enter commands, so youll have to bear with me here. I've read about truncating and shrinking and some other things, I am just worried and dont want to mess anything up. I know this is probably a simple task, but like I said, with the truncate command I was reading about, I dont even know where to go to type it in!!! If someone could please help it would be much appreciated. Thanks so much.