Tagged Questions

The discipline of Operational and Architectural Management of Database Systems.

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2
votes
2answers
1k views

Unknown Db file format - best way to find out?

A client has given me the data he wants visualised in my project - but I don't know what DB format it's in. He's pretty unclear, also.. I have access to the table structures, but don't know how to ...
2
votes
1answer
661 views

Pgpool-II: sequences advanced by 1 after PITR recovery

I have tested pgpool-II 3.0.1 and pgpool 3.0.4, PostgreSQL 8.4 In both cases I'm getting the same result: after online recovery on primary and target nodes all 'serial' values got "+1". Other nodes ...
3
votes
3answers
984 views

Suggestion required for Large Database Optimization and performance

We are creating a large database with estimated growth rate 200 million+ records per annum. The database is use for analysis purpose and we will generate different tabular and graphical reports from ...
2
votes
1answer
89 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 ...
69
votes
14answers
22k views

Why is Database Administration so hard?

I know a lot of Database Administrators and they are all over 28-29 years old. Is all database administration like that? I mean, is this about getting experience more than at least 7-8 years? Or is ...
1
vote
2answers
280 views

Setting up a CDBMS server

I read something in wikipedia about CDBMS. I have no idea how to setup a CDBMS server! Is it comparable to how I am currently using mysql? I have some extremely large databases and I want to ...
4
votes
3answers
4k views

How to reduce the log file size without shrinking it in SQL server

In SQL server, how do you reduce the log files size without (DBCC) shrinking it. I know shrinking the log file will free up some space, but will also cause fragmentation. Doing a checkpoint in simple ...
0
votes
1answer
4k views

Maintenance plan delete backup

I succeeded in making a backup through maintenance plan. All I need now is to find how to delete a folder (containing old backup) through the same maintenance plan.
38
votes
12answers
4k views

How could DBAs be more 'programmer friendly'?

The answers and comments on the dba.se version and programmers.se version of the question "What are the arguments against or for putting application logic in the database layer?" are very revealing ...
6
votes
5answers
861 views

How do I rule out SQL Server as the reason for a slow website

A website we host has recently been experiencing slow load times. It's been ruled out that the problem lies with the web server and it maybe database related. What steps or procedures do I take to ...
19
votes
7answers
28k views

How can I tell if a SQL Server database is still being used?

We're looking to decommission a SQL Server instance which has a couple databases still remaining on it. How can I tell if they are still being used by users or a web application? I found a forum ...
4
votes
1answer
383 views

Oracle AWR shows missing stats for SQL ID as top elapsed statement

Why SQL ID has null number of executions and elapsed time / execution in AWR report. SQL ID is among top elapsed command on AWR but no details stats whoing time / execution. Would it be because shared ...
1
vote
1answer
155 views

Dates in openldap acl rules

Is it possible to use dates in OpenLDAP's ACL entries? I'm looking to do something like to * by this/termDate < NOW none by * break
14
votes
6answers
7k views

Are there any good and free tools for managing a PostgreSQL database?

Before, I have used phpmyadmin to manage an MySQL database, but now I would like to manage a PostgreSQL database. The PostgreSQL database is on a server, but not a webserver, so I don't use PHP. Are ...
5
votes
3answers
228 views

How do you approach refactoring an ugly procedure/query?

I've inherited a database which contains several procedures which are 1000-1500 lines long, with complex nested sub-selects going up to 7 or 8 levels deep in places. I desperately need to refactor ...
2
votes
1answer
684 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 ...
6
votes
3answers
1k views

Software Engineers and DBAs [closed]

What are main differences between Database Administrators and Software Engineers? To what extent should a Software Engineer know the details of the underlying database? Where is the border between ...
9
votes
4answers
12k views

How to detect any changes to a database (DDL and DML)

There are a lot of databases on my client's sql server. In common, these databases is under development, so developers can design, refactor, do data modifications and so on. There are some databases ...
24
votes
20answers
1k views

How to dive into an ugly database?

I'm sure many of you are/were dealing with a ugly database. You know, that database that isn't normalized at all, that database where you have to do a large painfully query to get the most trivial ...
25
votes
5answers
21k 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, ...
2
votes
1answer
1k views

MySQL : “FLUSH TABLES WITH READ LOCK” started automatically

I would like to understand how this happened. I was running a query that would take a long time, but should not lock up any table. However, my dbs were practically down - it seems like it was being ...