The tag has no usage guidance.

learn more… | top users | synonyms

4
votes
2answers
1k views

MySQL 5.5.16 allows anonymous connections

Apparently, I can connect to MySQL (at least from my localhost) without having to provide any username or password. I can even put anything as username, as long as the password is empty. I have access ...
65
votes
10answers
87k views

How can I export the privileges from MySQL and then import to a new server?

I know how to export/import the databases using mysqldump & that's fine but how do I get the privileges into the new server. For extra points, there are a couple of existing databases on the new ...
10
votes
13answers
5k views

Linux knowledge a Junior cannot miss [duplicate]

Possible Duplicate: What a beginner should know/learn for sysadmin job? I am soon going to be graduating from college, and am looking for job offers right now. There is one that I have a lot ...
1
vote
1answer
2k views

Deleting huge chunks of data from mysql innodb

I need to delete a huge chunk of my data in my production database, which runs about 100GB in size. If possible, i would like to minimize my downtime. My selection criteria for deleting is likely to ...
9
votes
5answers
9k views

Modifying columns of very large mysql tables with little or no downtime

I periodically need to make changes to tables in mysql 5.1, mostly adding columns. Very simple with the alter table command. But my tables have up to 40 million rows now and they are growing fast... ...
2
votes
2answers
8k views

Any way to copy the schema from one MySQL database to another?

I have a MySQL database that contains almost 100 tables. I want to set up N additional MySQL databases on the same server, each running on a different port. And I want each additional database to ...
2
votes
3answers
3k views

How do you clone an oracle instance?

How do you clone an oracle instance? Basically, I want to end up copying it from d:\oracle\oldname to d:\oracle\newname. I'm working with Oracle 10.2.
1
vote
5answers
2k views

Moving MySQL Data from 1 RDS server to another

How do I go about moving certain data (returned by a simple query) from one database in AWS' RDS to another? An interruption of up to 20 mins is acceptable, although not preferred. My current plan ...
1
vote
6answers
3k views

SQL 2005 Database Not Accessible

I've moved a database from sql 2000 to a new 2005 server. Everything was fine until I logged into Sql Server Management studio with one particular user. It looks like i logged in successfully but when ...
1
vote
2answers
818 views

SQL Server variable size and increase it

It is not clear to me how a varchar(max) is declared or used in an SQL Server e.g. 2005 Is a variable declared as varchar(300000) for example considered as a varchar(max)? E.g. I am seeing in a DB in ...
0
votes
1answer
896 views

Connect to and reindex Postgres database with system table errors

I've got a Postgres database that crashed (as well as the disk) and suffered some data errors (per http://serverfault.com/questions/156152/after-db-disk-failure-now-cache-lookup-failed-for-index). ...