The discipline of Operational and Architectural Management of Database Systems.

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2answers
2k views

Restore the latest backup on the database

We have a stored proc which takes the backup from a database to the specified location. Sometimes the backup process runs more than once. It causes having more than one backup set on the same file ...
0
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0answers
55 views

SQL Server A network-related or instance-specific error

I have a windows service that performs a lot of hits to database. Sometimes the database connection is down and I got exception "A network-related or instance-specific error". I got this behavior on ...
0
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0answers
63 views

InnoDB crashes frequently

My Innodb Engine is getting crashed frequently. I could not find the reason behind this. This is the error log: 140129 9:22:49 [Note] Plugin 'FEDERATED' is disabled. 140129 9:22:49 InnoDB: The ...
3
votes
2answers
3k views

SQL Server Connectivity Issues

I am getting the below error on occasion. Maybe every 30mins or so. I am not sure how to track what is causing the issue. I think it could be a Network problem as there are disk backups running as ...
1
vote
2answers
230 views

Automatic Failover in Availability Group

I have 2 nodes in my SQL server fail over cluster. I use SQL Server 2012 Availability Groups for HA purpose. The problem is that when one my server goes down the automatic fail over does not happen! ...
0
votes
2answers
328 views

Generic SQL Job Scheduler for multiple RDBMS's?

I have been searching for an answer to this, but can't seem to find anything. So my problem is this - we have an environment with MS SQL Server 2008, MySQL, and RedShift, and have some complex ...
0
votes
1answer
63 views

Rotate Postgres log at 5GB

How to make postgres 9.1 log to have maximum size 5GB and to be circle when comes to 5GB ? At the moment my log file is over 500GB. /var/lib/postgres/
2
votes
2answers
181 views

Autogrowth, shrink and database performance

I have already asked some questions about Autogrowth and shrink. But I have some doubts related to it. 1)I have a database which grows about 300 MB every month. So is it best to set Autogrowth of 300 ...
1
vote
1answer
200 views

Autoclose property resets to true after attaching db even if model is set to false

I am using SQL Server Express 2008 R2. The auto close property of a newly created database will be set to value same as model db. In my case I have set autoclose to false for model so that when I ...
1
vote
1answer
131 views

MS Access + SQL Server for 1160 users - Is it worth it? (Please Help!) [closed]

Our school in Delhi (India) wants to develop a professional and robust in-house database (SIS) that should handle vast amount of student information, including admissions, registration, re-enrollment, ...
0
votes
2answers
1k views

Unable to change engine to MyISAM in MySQL

I have installed MySQL 5.6.10 on Mac OS X 10.6.5. My issue is that MySQL is using InnoDB as its default engine. I have checked following engines are supported in MySQL: show engines\G ...
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0answers
174 views

Can't connect to local Postgres databases

After trying to install Postgres using Postgres.app and EnterpriseDB, I decided to re-install it using Homebrew (As I got some problems connecting to database). PYTHON=/usr/local/bin/python brew ...
-1
votes
3answers
163 views

Recovering Oracle Database using RMAN [closed]

I am an accidental DBA..I have to restore an oracle database using RMAN utility. I don't know anything about backups and restoration and this is my first assigned task. Are there any good forum(s) ...
4
votes
2answers
2k views

mysql multi threading for a single query

I have big db of size 8GB and having 9 million contacts in this db. When we try to retrieve all contacts, it takes nearly 1 or 2 hour (in some cases result in timeout) to retreive all contacts for the ...
7
votes
3answers
2k views

Is there an Open Source Metadata Management Solution? [closed]

Is there an Open Source Metadata Management Solution? I'd like to create a Metadata Repository that will hold the details of the metadata of database schemas, tables and data items of hundreds of ...
0
votes
0answers
21 views

ALTER TABLE Switch Statement Failed due to ANSI_PADDING [duplicate]

I trying to switch table partitions from LEFT to RIGHT. After the required tables have been created, I run the actual switch, but get the following error : ALTER TABLE SWITCH statement failed ...
2
votes
3answers
240 views

How to validate and upgrade my knowledge of SQL Server with MCSA

My story is that I am working now almost 10 years as an administrator, I deal with SQL Server and other IT stuff, most of my knowledge is self taught by reading books, dealings with problems and ...
0
votes
0answers
9 views

Multiple requests shut down MySQL [duplicate]

I have some problems with my MySQL database. I configured a server with the database and other services (apache, php) and put run multiple applications. There are two problems: Every day at the ...
24
votes
5answers
20k views

How do I shrink all files quickly for all databases?

In SQL Server (2008 in this case) how can I quickly shrink all the files, both log and data, for all databases on an instance? I could go through SSMS and right click each and choose Tasks -> Shrink, ...
7
votes
2answers
342 views

Where to start with Oracle?

This question only needs one answer: a list of great resources for getting started with Oracle, including Database Administration, PL/SQL and SQL. You may find your question has been closed as a ...
1
vote
1answer
94 views

sql server database size shown different in properties pane

while monitoring when checking database space used,my favorites are use indexinternals sp_spaceused select (sum(size)*8)/1024 as size From sys.master_files where name like 'indexinternals%' ...
2
votes
3answers
82 views

MS SQL Server instance name

Quick question guys! Will there be any issues if I use the default instance (MSSQLSERVER) for both test and production environments? They are on separate physical servers. I'm using MS SQL Server ...
6
votes
1answer
285 views

Better to use a RANGE RIGHT or RANGE LEFT Partition Scheme

I'd like to know if it is better to use a RANGE RIGHT partition scheme or a RANGE LEFT partition scheme? Is one of these options by default a better choice, or is it heavily dependent on the actual ...
0
votes
2answers
275 views

Getting table definitions on the command line in MySQL [closed]

I am new to MySQL. I am trying to get table definitions from the database server (4.0.26). I tried below steps to get information, running cmd as an administrator: c:\> cd mysql\bin\ ...
0
votes
2answers
468 views

Database consistency checker in postgresql

Are there any DBCC(Database consistency checker) commands in PostgreSQL? I could find SQL server DBCC commands but not for Postgres? I read that postgresql has inbuilt functionality of perfomance ...
2
votes
0answers
934 views

Standby controlfile error

I am doing dataguard. I have manually done a backup for the standby database. It was working fine. Problem arose when I used the standby controlfile. On the primary, I have created a standby ...
3
votes
5answers
186 views

Does DBA need (a read) access to virtualization infrastructure? And why?

I am in charge of monitoring, troubleshooting, tuning and optimizing a few dozens production SQL Servers 2008 R2/2012 in my company that are being run inside VMWare virtual machines. I've requested ...
0
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0answers
55 views

Best practices for ranking records in flexible way

Suppose we have 10000 records of any product. User search on our website with his given criteria. so we output search results based on given criteria. Now Admin want to rank products in search. so ...
2
votes
1answer
2k views

Cannot start psql with user postgres “Could not change directory to /home/user ”

I did a silly mistake. I wanted to set postgres permissions to a folder for exporting data from my database. So I set something like sudo chmod 777 -u postgres /home/user and then my home partition ...
2
votes
0answers
238 views

IBM DB2 Command line Window - Administrator disappears on windows server 2008 r2?

I have installed IBM DB2 version 10 on windows server 2008 r2 machine. However i am unable to open it's command line window. For example: Whenever i try to open Command Windows - Administrator it ...
0
votes
3answers
101 views

Applying data changes from one database to another

I have an application running on Oracle 9i database and I was looking for something more practical to deploy data changes (not schema changes) from the development database to production. Currently I ...
0
votes
0answers
47 views

Which queries are running and what tables are they accessing? [duplicate]

I am learning Oracle. I am trying to write a query to find out the list of SQL queries and the tables that they access. I tried looking into v$sql, v$sqlarea etc, but was not able to find a column ...
1
vote
1answer
48 views

How to document an archived database? [closed]

You've stored the backup file in a safe place, but what kind of info do you store with it? database type (SQL Server) compatibility level (SQL Server 2008) application name application owner ...
0
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0answers
163 views

See list of queries executed by a user in Oracle

As an Admin I would like to see the list of queries executed by a particular user? How can I configure DB to keep track of all the queries executed and how can I see them? I am using Oracle 10g.
2
votes
4answers
582 views

Tool to monitor database data

I would like to tool that when record data changed inside all tables. so later i would get a report like table user added record - 3,user3.. deleted record - 2,user2..
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vote
0answers
512 views

Analyzing MySQL crash due to corrupt InnoDB page. Failed page checksum

Lately we have been pestered by infrequent sporadic database crashes on one of our MySQL instances. Each time it is due to a failed page checksum. It happens on a specific database but spans multiple ...
0
votes
2answers
936 views

High Disk I/0 Issues

Our database has been giving this error occassionally... "Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. ---> ...
2
votes
2answers
172 views

How can I prevent users from overwriting databases when restoring?

I don't want users to restore (with overwrite) on some specific databases. How can I inhibit from restoring over these databases?
1
vote
1answer
98 views

addition in datetime column during insertion in mysql

i have a table with below 5 columns..timestamp is data type for timedate related column : Region event_time start_time mid_time end_time India 2013-11-03 13:00:00 America ...
0
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0answers
80 views

Can maintenance plans be used in SQL Server multiserver (Master-Target servers) administration?

Since I failed to configure SQL Server 2012 Multiserver (Master and Target Servers) administration, I am eager to understand whether it (setting Master and Target servers) would permit to send from ...
0
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0answers
35 views

How to install SQL Server 2008 R2 [closed]

My installation is completed, but no instance in not loading (I am on my service account). Show only .in for more browser. Not loading my instance in the database engine. Everything is completely ...
0
votes
1answer
48 views

What's the point in mapping users in SQL Server Data Collection?

In SQL Server 2012 R2 Enterprise, whenever I check Management\Data Collection, right-click --> Configure Management Data Warehouse , I see whatever users-accounts-logins except the one I am logged in ...
0
votes
1answer
100 views

Disk I/O High Activity [closed]

What does the green and blue indicate from the below scrteenshots of disk activity on SQL Server database server? Thanks!
2
votes
2answers
2k views

Unable to access sql database with login and password [closed]

I'm writing Windows Service in C# and inside of it I'm unable to connect to the database. This is the question I've asked recently: SqlException: Cannot open database "path\db.mdf" requested by the ...
0
votes
2answers
716 views

Updating an indexed column performance impact in SQL server

I am trying to understand is there any performance impact if I am trying to update a column which is the key column of a non-clustered index in SQL server 2008? For e,g I have a column IsActive in ...
-1
votes
1answer
258 views

How can I detect which indexes are being rebuilt offline and how long?

The rebuild of indexes takes appr. the same 55 min. with both "Do not rebuild indexes and "Rebuild indexes offline" "For index types that do not support index rebuilds" with "Keep index online while ...
0
votes
0answers
536 views

How to debug problems with SQL Server multiserver (Master and Target server) administration?

I've tried to set Mater and Target Servers on various cobinations of SQL Servers 2012 R2 on Window Server 2008 R2 and Windows 7 machines but always getting one or 2 of the following errors during ...
1
vote
2answers
56 views

What does enabling containment on server incur?

Having read in a book of Patrick LeBlank "Microsoft® SQL Server® 2012 Step by Step": "Benefits and limitations of contained databases As with most features, there are benefits and ...
0
votes
1answer
111 views

Which index types do not support online index rebuilds?

In SQL Server 2012 Enterprise Ed., which index types do not support online index rebuilds? and why? and which activity-operations can prevent online index rebuilds?
0
votes
1answer
301 views

What is blocking 'SELECT… WITH(NOLOCK)'?

While following BrentOzar's "How Much is Offline During an Index Rebuild?" I was curious to run: SELECT Quantity FROM [Production].[TransactionHistory] WITH(NOLOCK) while executing a rebuild ...