SQL Server Admin 2014 :: Restore Lost Transaction From Transaction Log File
Jun 10, 2015
I have Full database backup upto previous day and transaction logfile of Today transaction. my database has crashed. I have restored previous day's Full backup. I have faced difficulty to restore today's transaction from today's transaction log. What are the steps to restore full database back and one day's transaction log file. Note: there is no differential database backup and transaction backup.
Is there a formula for calculating how expensive a transaction will be in terms of disk space used before its run. I dont want it accurate to the MB, but rough enough so I can determine how much additional space to assign to a transaction log or SAN volume.
Currently we're reindexing ~25billion rows, nothing too wide, say 12 columns consisting of 1 varchar(50) and the rest ints, bits and money.Roughly speaking if I reindex the clustered index on an int indetity, (with sort_in_tempdb) how would I calculate the the disk space used?
I have a database that is part of AlwaysOn that is filling up the transaction log drive even though I have a daily full backup and transaction logs set for every 2 hours. The backups are going from both the primary and secondary replica backuping up to the shared disk and I have the backup preferences set to the primary.
When I try to shrink the log I get 'The transaction log for database 'DB' is full due to 'LOG_BACKUP''. I have to manually backup the trans log and then shrink, why the maintenance plan backups aren't doing this even though they are "working".
We have multiple databases on a single instance in an OLTP environment. I have my data files on a separate SAN LUN from my transaction log files (and a few NDFs split out onto additional LUNs). I was wondering if there is a performance benefit to putting each LDF file on its own LUN? Or at least my few busiest LDFs?
We are currently on 2012, but I'm having to put together specs for a 2014 installation and need to answer this question without having an environment in which I can benchmark different setups. I just want to hear whether or not others have done this (why or why not?).
I'm working on a large scale project that is currently in production. We have a big process that recently changed to use In-Memory Tables with SQL 2014 for performance efficiency.
The Process uses:
51 In-Memory SQL Tables. 50 Stored Procedures (not native) that loads data(Insert) from about 150 regular Tables and IM tables. 300 Validations (short stored procedure not native) Selecting from those 50 In-Memory Tables (And insert to In-Memory table that save the validation errors if exists on In-Memory table).
At the end of this process we clean the table from the data that relavnt to etch prosses(DELETE FROM WHERE)
B.T.W No UPDATE STAT on In-Memory are used-when we test the prosses it slow as down and cause some locks.
We are calling this process from ADO.Net, loads stored procedure first and then validations, each SP use different SQL Connection. In normal use, everything works fine and takes about 1.5 second.
Under stress test (6 Clients X 100 Tasks) for 30 minutes. After several minutes we are starting to get this SQL Exception (1 SQL Exception for every 20 tasks):
41301. A previous transaction that the current transaction took a dependency on has aborted, and the current transaction can no longer commit.
Transactions in Memory-Optimized Tables
The Exception is not clear. We are not using BEGIN TRANSACTION in the process. The SQL Exception occurs in different stored procedures each time.
My sql databases in SQL Server 2014 has the status "suspend" as I saw in SQL Management Studio. I can't restore to serviceable condition sql databases through standard procedures. I need to restore .mdf file.
I've recently started working with a public sector organisation who have 4 clustered sql instances that has 80% of it's db mirrored.
Looking at the transaction log - it seems that a transaction log backup is a good idea as the log is 4x larger than the data file.But I'm not allowed access to the physical server to check onto which drive I can create the trn. No RDP, no vmware - let's be honest I'm not even allowed to launch cmd line Also the Server Manager informs me "We will need to carefully look at database backups if you guys want to start doing these backups on box, as that will break our off box backup routine (it will screw the transaction chain)."
I don't understand how backing up the transaction log could break the "transaction chain"?
is there a way to restore all file groups except one? example: Database A has 10 filegroups, but 1 of them is defunct, so i cant delete it and there's no backup for restore it.Can I create a new DB restoring the 9 good FGs from a database A's backup?
I have a windows 8 pc that I just got and installed sqlexpress 2014. My buddy haw windows 7 and installed sqlexpress on his pc. We create a db on his pc, did a backup, copied the backup to my pc. In ssms I right click on "database" > restore database. click device and the button to find my file. I navigate to the folder where the file shows in file explorer but the .bak file does not show in ssms to restore from. This is probably a windows thing but I have don't know what to look at.
In Windows Server 2012. How do I do a System Restore to a previous restore point?I need to install the 64 bit and 32 bit Oracle Client Install for connections in SSIS and to create Oracle Linked Servers.
If you make a mistake it is not fun removing it. Sometimes it corrupts the machine and it is difficult to uninstall since there is not an Oracle Universal installer for Oracle 11g.If you install the 32 bit before the 64 you mess up the machine.how to create a restore point.
when execute the restore log command, in the messages window it shows how many seconds the restore takes, at the meantime, on the status bar, it also shows the seconds the command takes.
Two values are different and could be very different, please see below examples , restoring takes 1.8 seconds, but in total the command takes 4 seconds to complete, the other one is 8.1 seconds and 12 seconds.
What does SQL Server or Windows do after the restoring?
pic a:
pic b:
I did a xperf, I can see after the restoring is completed, sql server did garbage collect and log write, which just run very quickly, but storage is busy on reading the log file for nearly 2.2 seconds( 4-1.8), and 4 seconds ( 12-8.1) .
pic 1:
pic 2:
see pic 1 above, from 13 to 17, the restore operation is finished, but the storage jump to 100% active to do some reads, only reads no writes. zoom that period shows pic 2, it read 4096 (I don't know the unit size) for about 4 seconds, what does this do?
Data file, log file, backup file are no different drives, but all local drive, the interesting point is the read jumped after restoring, I tested it on different server, same result...
Got this situation, trying to do Use SignleMode to recover my handing db, after that lost ldf (and physically too). Tried all things thru SSMS and scripts (below) that I know with no result, is there anything else I can try to recover it, I don't need log file.
An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)
Could not open new database 'MyLostDB'. CREATE DATABASE is aborted.
File activation failure. The physical file name "C:xxxMyLostDB.ldf" may be incorrect.
The log cannot be rebuilt because there were open transactions/users when the database was shutdown, no checkpoint occurred to the database, or the database was read-only. This error could occur if the transaction log file was manually deleted or lost due to a hardware or environment failure. (Microsoft SQL Server, Error: 1813)
EXEC sp_attach_single_file_db @dbname='Commissions', @physname=N'C:SQLDataMyLostDB.mdf' GO CREATE DATABASE Commissions ON (FILENAME = N'C:SQLDataMyLostDB.mdf') FOR ATTACH_REBUILD_LOG GO
I have two databases like each other that one is the backup of another. Each DB have 2 filegroups. I want to replace one filegroup from one db to another. How do I do this? Or how do I backup and then restore?
What is the best method to restore a DBTest1 (with one .mdf and one .ldf) into DBTest2 (with one .mdf, multiple .ndf data files and with 4 filegroups associated with specific data files). I do not see how the one .mdf file (in DBTest1) can be separated into the other 4 filegroups (in DBTest2). This does not sounds like it is possible with Backup DBTest1/Restore to DBTEST2 or (Detach/Attach) because the underlying filegroup and file structure is different.
What method should be used to get the data and structure from DBTest1 (includes 1100 Tables and 550 GBs of Data) into DBTest2 (with 4 filegroups)? Is the following possible:
1) First, in DBTest2, execute a script to create tables/indexes on appropriate filegroups.
2) In DBTest2, use scripts to pull data from DBTest1 into DBTest2, for example INSERT INTO DBTest2.dbo.tables with SELECT FROM DBTest1.dbo.tables OR use SELECT/INTO DBTest2.dbo.tables FROM DBTest1.dbo.tables.
Or, is it possible to use the BULK INSERT or BULK COPY Options? Export/Import Wizard?
Does the Create Index step needs to be done after the data is loaded into DBTest2?
I have SQL 2014. When I try to restore a user database using SSMS GUI, the Restore Database Pop up box never pops up. This happens for any database on this server at any time. Sometimes I get the pop up, some times I dont get.
So I tried to click on Databases on Top and Restore Database, and then select the db that I need to restore from Drop down, then it shows "creating restore plan selecting backups" but it takes forever.
We have full backup and trn log backups every 30 mins. So is it trying to get all these backup files in the background causing this issue? If yes then how to overcome this?
I'm trying to figure out why this SQL Agent job keeps failing.
We used management studio, and connected as mydomainmyuser, and developed a script to take a backup file from a network share and restore it. It worked fine in SSMS under that login.
After we got it working , we created a SQL Agent job on the same server to run the script, and set the agent job to run under that account that we tested with.
This is the error message we got:
"Executed as user: mydomainmyuser. Create Database permission denied in database master'.
So, I gave that login the rights to Create Database and Create Any Database. Then the error message changed to:
"Executed as user: mydomainmyuser. User does not have permission to RESTORE database 'mydatabase'. [SQLSTATE 42000][ERROR 3013] RESTORE DATABASE is terminating abnormally. [SQLSTATE 42000] (Error 3013). The step failed. "
* I can't use SA for the job account, because the SA account doesn't have rights to see the network folder where the backup file sits, so it has to run under the domain account. * The user is a member of the dbcreator role - and the serveradmin and sysadmin roles * The user is a member of dbowner on the database I am trying to overwrite with the restore * I have given the user the rights CREATE DATABASE and CREATE ANY DATABASE
The only suspicious thing I found was that it appears the server was renamed at one time. When I looked at the login in management studio, I was not able to change some of the rights. On the Securables page, it shows the server name as "MyServer-New", but the server name is "MyServer". It is a replacement, and I suspect that when they did the replacement they named it "MyServer-New", set everything up, then renamed it.
I found this post listed below, and ran the script (shown below), and it showed that the server name was MyServer and the ServerInstanceName is MyServer-New
[URL] .....
SELECT HOST_NAME() AS 'host_name()', @@servername AS 'ServerNameInstanceName', SERVERPROPERTY('servername') AS 'ServerName', SERVERPROPERTY('machinename') AS 'Windows_Name', SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS 'NetBIOS_Name', SERVERPROPERTY('instanceName') AS 'InstanceName', SERVERPROPERTY('IsClustered') AS 'IsClustered'
I can't reset SQL until the next maintenance window to test changing the server name as outlined in the post.
Am I on the right track with the name change messing up permissions, or is there something else I need to check?
What is the best way to restore a database from a folder of backups (including full, diff and log backups) without using the backup history in msdb?
I have a restore process that restores all backups on a regular schedule in order to fully verify their integrity. To do this, I use the backup history in msdb on each server that I'm monitoring. I had a thought the other day that I would be in trouble if I lost msdb. Then my backup history would only be as good as the last backup of msdb.
What I'd like to do is read a folder of backup files and generate a restore script up to a specified time. Would I use RESTORE HEADERONLY to do this? If so, would I use PowerShell to traverse each file in the folder?
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
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.
I have an issue to restore an encrypted backup via GUI.I can restore an encrypted backup on another instance using t-sql command, but cannot do the same using the GUI of sql server 2014. The message error is: No backupset selected to be restored.I have restored the master key from the instance where the encrypted backup was created on the instance where I want to restore the encrypted backup, then restored the certificate. I managed to open the master key. I have the following versions:
On the instance where the encrypted backup is taken: Microsoft SQL Server 2014 - 12.0.2000.8 (X64) Feb 20 2014 20:04:26 Copyright (c) Microsoft Corporation Standard Edition (64-bit) on Windows NT 6.2 <X64> (Build 9200: )
On the instance where I'm trying to restore the bakcup via GUI: Microsoft SQL Server 2014 - 12.0.2000.8 (X64) Feb 20 2014 20:04:26 Copyright (c) Microsoft Corporation Standard Edition (64-bit) on Windows NT 6.3 <X64> (Build 9600: )
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?!
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.
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.
Hi,I have a problem. When my computer loses connection toserver during transaction it is rolled back automaticlyby server after 2-5 minutes. During the time a can resetmy computer, run my program again and I can seedata from not commited transaction becouse I have toset isolation level to read uncommited.How to force the server immediately rollback transaction?TIAclint
For a database, we have 4 data files in a particular file group and the file sizes are almost 70 GB each.
Do I come across any performance issues if I create/pre-allocate an additional data file in the same file group so that the existing files don't grow too much?
In a server we had File Growth,And then We had to Add New Hard Drive And New File On It.And Now We have New server with a Huge Hard Drive.But all files remaind.Can I Reduce This files to One data file or not ?
I'm investigating a poorly performing procedure that I have never seen before. The procedure sets the transaction isolation level, and I suspect it might be doing so incorrectly, but I can't be sure. I'm pasting a bastardized version of the proc below, with all the names changed and the SQL mucked up enough to get through the corporate web filters.
The transaction isolation level is set, but there is no explicit transaction. Am I right that there are two implicit transactions in this procedure and each of them uses snapshot isolation?
SET NOCOUNT ON; SET TRANSACTION ISOLATION LEVEL SNAPSHOT; DECLARE @l_some_type varchar(20), @some_type_code varchar(3), @error int, @error_msg varchar(50);
A log file size of a production database has been increase from 4gb to 150 gb initial size.Now i want to find when it will grow & how much it grow & which transaction is responsible for this.
I have a database it is 50 gb with hundreds of columns. I would like to choose a certain column and convert the data in it to .csv or excel file. How can I do that I am very new to MSSQL...
