The discipline of Operational and Architectural Management of Database Systems.

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3
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Need a way to prevent log shipping from kicking users out

We have SQL Server 2012. A service we use requires us to use log shipping, however we are tired of having users being kicked offline every 15 minutes. Are there any creative ways to get around this ...
3
votes
1answer
34 views

SQL Server 2012 - How to Remove Partition on Publisher but not Subscriber?

Is it possible to setup partitioning on a SQL Server 2012 publisher table, so that older data can be removed without affecting the same table on a subscriber table? Table exists on Database A (SQL ...
3
votes
1answer
142 views

What is the best storing device for DB transaction log?

I'm using MySQL with InnoDB storing engine. Transactional log is placed to dedicated HDD. Still as it is HDD atopsar shows big load (>50%) to this HDD because of big amount of small IOs (about 50 ...
3
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0answers
13k views

Importing a different character set export dump into another DB instance

I am trying to import a given dump file using oracle imp utility. However; I am facing the following issues. C:\Users\AD>imp DB_USER/*****@dev1 file=C:\test\db42312.dmp log=C:\test\import2.log ...
3
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0answers
1k views

Once more about SQL Server virtual accounts

Let me reboot my question on SQL Server virtual accounts permissions The (same) MSDN article on the same version 2012 of SQL Server "Configure Windows Service Accounts and Permissions" states: ...
3
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0answers
526 views

How to properly configure pgBouncer transaction level pooling?

What is a good way to determine the number of available transaction connections when using pgBouncer to pool database connections? Also, how should I determine the number of max_connections and ...
3
votes
1answer
2k views

Mysql - show results from 3 tables excluding NULL or EMPTY values for certain fields

I have 3 simple tables with polls, users and votes. I'd like to show all polls ordered by clean count of votes (sometimes either poll_id or user_id don't get inserted). Furthermore I'd like to show ...
3
votes
1answer
1k 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
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0answers
643 views

SQL Developer Data Modeller and Data Dictionary question

I'm not a DBA but I am a (mostly!) competent SQL report writer. Can I trouble you DBAs for some pro-knowledge, please? I can connect SQL Developer to Oracle XE's data dictionary without any problem, ...
2
votes
3answers
284 views

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

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 ...
2
votes
2answers
17k views

Database running out of space

My database has 16MB of space left. I used to just truncate as I was taught but I found these links that advise against truncating: ...
2
votes
5answers
7k views

How to determine why a MySQL server has become slow and requests sometimes time out?

I'm working on my first project that makes heavy use of a MySQL database and am struggling to understand performance issues I'm having. Most of the time, responses are returned quickly from the ...
2
votes
2answers
684 views

Generalisation in databases

I am working on a Hospital Management project in DB2. I have one table for staff with a primary key of staff_id. The hospital has to have different staff... e.g doctors,nurses,e.t.c. Is it better to ...
2
votes
3answers
1k views

Oracle 12c in-memory option

I've been told that there's an oracle in-memory option for 12c and that it uses columnar compression to get some great query speeds. I'd like to leverage it for some business intelligence stuff. I've ...
2
votes
3answers
234 views

Reasons to Backup (or not backup) QA and Dev Databases

Pretty simple question: is it standard/best practice to backup dev and QA instances of the database? Assume that the schema information is kept in some form of source control.
2
votes
2answers
100 views

which option is better for not slow down the performance of queries?

I am developing a system that records customer payments, when a customer makes a payment, the system must update the account and show the payment made and all previous payments, is here when the ...
2
votes
2answers
2k views

Having a PostgreSQL database exposed to the internet

I've seen on DBA and other sites that exposing a database to the Internet is a particularly bad idea, but I noticed that PostgreSQL has SSL-certificate-only authentication. Does this make it any safer ...
2
votes
1answer
800 views

Create a sub query for sum data as a new column in SQL Server

Suppose that I have a table named tblTemp which has this data: | ID | AMOUNT | ---------------- | 1 | 10 | | 1-1 | 20 | | 1-2 | 30 | | 1-3 | 40 | | 2 | 50 | | 3 | 60 | ...
2
votes
1answer
2k views

Solve conflict between affinity mask and I/O affinity mask?

I executed this on one of our SQL Server machines: EXEC sp_configure 'show advanced options', 1 And then executed RECONFIGURE. This presented me with the following error message: The affinity ...
2
votes
2answers
5k views

How to deny drop permission for a table?

Is there a way to deny drop permissions for a specific table from a user or role?
2
votes
2answers
488 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?
2
votes
1answer
4k views

How can I move LOB_DATA ( varbinary/image/text) to different Filegroups

LOB_DATA : varbinary(max),varchar(max), image , text columns. I have 4 tables with large amount of LOB_DATA in it. I would like to move LOB_DATA in these tables to different File group in a different ...
2
votes
2answers
542 views

Duplicate login details per user in error log

Being able to view details of who successfully logs into a database and which user's login failed via the error logs is a good thing. However I have a scenario that I need help with: For some reason ...
2
votes
2answers
71 views

Give every user 3 default 'bookmark' entries

I've got a table users and a table bookmarks. The table bookmarks obviously contains pages the user wants easy access too. But, there's a new requirement now: every user gets 3 unmutable bookmarks. ...
2
votes
1answer
1k views

Is DBCC SHOWFILESTATS an accurate way to see unused space?

We have a few tables each with near 100 million rows of data. A co-worker has these tables setup with partitions based on a date field. Our disk space is starting to run low and knowing that ...
2
votes
1answer
127 views

SQL Server - Data and Log Separation

We have a SQL Server 2008 R2 which has, among others, a 12K RPM HDD and a 7.2K RPM HDD. The original intention was to store the data files on the 12K drive and the log files on the 7.2K drive, as is ...
2
votes
2answers
5k views

Help with SQL Server Error “ad Hoc access to OLE DB Provider 'Microsoft.ACE.OLEDB.12.0'”

So we have an interesting issue where users are receiving the following error when attempting to query a view in SQL Server 2008 R2: Msg 7415, Level 16, State 1, Line 1 Ad hoc access to OLE DB ...
2
votes
1answer
182 views

Will a primary key be added as a clustered index?

I've inherited a database where no primary keys were defined on the tables. There are also no clustered indexes assigned to the tables. If I perform an alter table to assign a primary key will this ...
2
votes
2answers
369 views

Database structure for a system with multisite

The system I'm working is structured as below. Given that I'm planning to use Joomla as the base. a(www.a.com),b(www.b.com),c(www.c.com) are search portals which allows user to to search for ...
2
votes
1answer
82 views

How to get dependencies order

I have a Database Called Total and I have about 40 tables in it.I am trying to move the tables in the database into a different server So I have prepared all the create table scripts but the problem ...
2
votes
2answers
226 views

How to compare the database of a backup from another environment

Has anyone had any luck with taking a backup (approx 30 tables) from an Oracle database's live environment, then loading a test environment with this backup and doing a comparison between the test ...
2
votes
1answer
58 views

Is this table in my ERD redundant? (Image)

I am developing a research article database for a project. My professor approved this design but I feel like the Author's_University table is redundant and that University_ID could just be added to ...
2
votes
1answer
210 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, ...
2
votes
2answers
1k views

How to configure data collection in SQL Server 2012?

In SSMS of SQL Server 2012 Enterprise on Windows Server R2 Standard, each time I am trying to set sub-option "On demand" of option "Non-cached - Collect and upload data on the same schedule" of Data ...
2
votes
1answer
851 views

Are there any good database management applications for JDBC/Java databases?

I am working with an Apache Derby/JavaDB database via JDBC. Before have I been working with MySQL and used phpMyAdmin as a good Database Management tool. Is there any good desktop application for ...
2
votes
2answers
279 views

Should a SQL Server DBA know Windows Server and vice versa? Are these roles soon to become synonymous. Or at least more encapsulated/?

I have Jr. experience with SQL Server and a desire to dive deep into Windows System Administration. Are these fields too separate to combine skill sets? Would I be marketable as a Windows Admin who ...
2
votes
2answers
166 views

How should I (re) index the table while keeping the transaction log small?

I have a 170 GB table in a database. It has 70% fragmentation on its index (index has multiple columns in it). The last time I tried DBCC REINDEX the transaction log blew up in the hundreds of GBs. ...
2
votes
3answers
120 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 ...
2
votes
3answers
841 views

Copy database to local from server [duplicate]

As I show , I have server database version-10.50.1600 and local database version-10.0.1600 . How can I copy database (with all tables and data(s)) from server to local which has different version ? ...
2
votes
3answers
303 views

Oracle error : Shutdown immediate error

echo $ORACLE_SID YBRD conn sys/hello as sysdba SQL>shutdown immediate Then I was waiting for it to shutdown for a couple of minutes. It didn't, so I closed my window. Then I again logged in and ...
2
votes
1answer
1k views

Create database on new partition

I use postgresql 9.1, on ubuntu 12.04. I had installed the depot package. I have added a new partition to my system, and I would like to create a postgresql database on this partition ( which will be ...
2
votes
1answer
2k views

Recover database until cancel without prompt?

The statement: RECOVER DATABASE UNTIL CANCEL prompts once to select the archive log file. Is there a way to pre specify the value so as to be able to use it in a script without prompt? I have ...
2
votes
3answers
23k views

Unable to start SQL Server Instance 2008 R2 - DB file corrupt

I was not able to start the SQL Server 2008 R2 production DB instance. After reading the log file error message is " The log scan number passed to log scan in database ‘master’ is not valid. This ...
2
votes
2answers
3k views

Cannot login to Oracle11g with System username

I just installed Oracle 11g into my machine. I was about to shut down a database instance, and Oracle asked me for username and password, I provided the credentials I used to login into the web ...
2
votes
2answers
1k views

How to compare performances of two databases

There are two database servers and I want to compare their performances. Both have Windows operating system and and Oracle (10.2.0.4 and 11.0.2) database. Both are OLAP databases with 15-20 users ...
2
votes
1answer
106 views

Forums about getting SQL Server 2000 Administration help?

What I'm trying to accomplish is that I need to migrate the SQL Server 2000 installation into a SQL Server 2008 installation, and I would like to say that I am afraid that after this operation I will ...
2
votes
1answer
42 views

For a software application, does every workstation need database drivers?

really a just a newb question. In the case of something like an enterprise system for a company, where end-users are executing continuous reads and writes to a database, it does not appear that in ...
2
votes
1answer
22 views

Could Not Be Accessed Value Of The For Loop Counter In PL/SQL

I try to learn PL/SQL for loops in tutorials. I learn flow of control in a for loops. (And i saw that it is same with most of the other programming languages) Here is the flow of control in a for ...
2
votes
1answer
303 views

should we keep the log file or the data file on the fastest drive?

SSD = solid state drive We have a specific question about tempDB performance on server CRM01 (Marketing CRM server - running large queries): On CRM01, tempDB data and log files reside on the solid ...
2
votes
1answer
87 views

Create failed for Availability Group 'AGN'

I tried creating availability group (AOH) many times but no luck , It got failed every time. Please help me on this case. I configured Windows cluster (Name as 'WINCLUSTER') with two nodes. They are ...