-1
votes
3answers
528 views

Redirect MySQL queries to another server [closed]

In order to lower system usage I'm planning to use another server to store my databases. so how can I redirect MySQL queries to another server or make MySQL to store databases on another server?
0
votes
1answer
471 views

How to create one update query (mysql) on multiple databases

I have several DBS on the same mysql server. The DBS's structure and schema are exactly the same (only data is different) the query on certain db works well like this (written in phpmyadmin) UPDATE ...
0
votes
1answer
132 views

MySQL's Query Optimizer's take on disk access time

I don't have a ton of background with MySQL, and I was wondering of anyone can give me some insight into MySQL's query optimizer and the impact on the cost of disk accesses in determining a query plan ...
4
votes
4answers
6k views

Why are my MongoDB queries really, really slow?

I've inherited a large MongoDB server at work, and have been tasked with figuring out why queries run against it are so slow. The DB contains tons and tons of records (on the order of 10^9) and takes ...
1
vote
2answers
394 views

Cancel query in MySql

I have a query running for some hours, if I cancel this query what is going to happen to the database? The query is an ALTER TABLE that adds a new column. UPDATE: I executed the script this way ...
0
votes
2answers
811 views

SQL Server query hangs indefinitely - restoring database only solution

Occasionally we encounter a query that hangs indefinitely on our SQL Server. This query is being called from a separate ColdFusion web server. If I run profiler while it is hung I just see locks ...
0
votes
3answers
2k views

The database at work is Unidata, which is unfamiliar to me. Is there a free 3rd party app I could use to query the database?

I know just enough about databasing to get by - it's not normally within the scope of my job, but I think it's good for everyone to know a little bit. I'm trying to access some of the data in our DB ...
4
votes
3answers
4k views

Importing a large SQL script into SQL Server?

I'm trying to move a database from our production server to our test server. I've used Microsoft's Database Publishing Wizard to create a script containing the schema and data for the production ...