Does having many databases affect MySQL performance?

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Does having many databases affect MySQL performance?

I have huge unused databases in MySQL. Do they affect my MySQL engine performance even if they are unused? Do they consume memory on their own? Thanks

Answer:

The only performance hit I can see is on the INFORMATION_SCHEMA database (See my post How is INFORMATION...

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perpetual_dream at Database Administrators Mark as irrelevant Undo

Other solutions

Does separating tables across multiple databases improve performance?

If I have two tables, let's say products and orders.  And if orders is mission critical let's say, but products is not and sometimes products runs large queries, if I separate the tables into two different databases, would that make the performance more...

Answer:

No. Putting the two tables in different databases on the same server will gain you  absolutely no performance...

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Ben Osheroff at Quora Mark as irrelevant Undo

Relational Databases: Would it be premature optimization to have larger tables vs lots of small tables in mysql?

I feel stupid for asking this, but I'm wondering how having LOTS of small tables (with complex relationships) would affect performance and memory constraints vs a large, less neatly organized table.

Answer:

This is a great question (not stupid at all!) -- and (un)fortunately one with which I have first-hand...

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Lorin Ricker at Quora Mark as irrelevant Undo

How Windows 7 Ultimate(64bit version) effects to pc which has law performance?

I have a pc which has Intel(R) Pentium(R) 4CPU 2.80GHz ~ 2.8GHz(1 Core,1 Logical Processor) . and 2GB RAM,40GB hard disk.Ealier XP sp2 ran as OS and, newly Win 7 64bit version was installed. I want to know whether this 64bit version overloads, reduces...

Answer:

To adress those people who think you have a 32 bit CPU- http://ark.intel.com/products/27461/Inte&hellip...

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Aash at Yahoo! Answers Mark as irrelevant Undo

In MySQL, does altering a table's AUTO_INCREMENT value to start at a really high value affect read/write performance?

This is compared to a scenario of a table which has the same number of rows (O(10MM)) but has AUTO_INCREMENT that started at 0 (vs. something O(100MM)).

Answer:

I really doubt it: integers are fixed-sized, so either way the computer has to deal with the same number...

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Ted Suzman at Quora Mark as irrelevant Undo

If I am using mysql and php to build a db driven site, wat wud be the optimal range before i have problems?

me and my team are doing it for the queens chamber of commerce. we have to design a website which will cater to high school and college students who want internships and employment, specifically in new york city and around the triboro area. we have already...

Answer:

Most of PHP application performance issues are caused by server settings. Rasmus Lerdorf, the creator...

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NC at Yahoo! Answers Mark as irrelevant Undo

How do SSD drives change things for main memory databases?

For example Amazon DynamoDB gets its read performance from using SSD drives. How will this affect Redis, VoltDB and others when you can store more data cheaper with similar performance?

Answer:

Most main memory databases have a log which contains data modifications, as well as a copy of the data...

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Justin Swanhart at Quora Mark as irrelevant Undo

What would be the name of this software architecture? and Do you see any immediate flaws in the design?

I am in the planning stage of a median web application, this app is a social network for organizations such as a corporate social network, used by the staff internally, but with not much features, only the basics like as chat, real time posts, comments...

Answer:

While there is nothing wrong in the individual components you have chosen, they are just too many stacks...

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Pratik Mandrekar at Quora Mark as irrelevant Undo

Contemplating getting my own server

How would the new Mac Mini server compare to a cheap shared hosting account? At present, my website is hosted on GoDaddy.com's 'economy' shared Linux hosting plan. I noticed that Apple has now released a version of the Mac Mini designed to act as a server...

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A site hosted on a 800k DSL line is pretty much doomed to feeling sluggish even if only one person is...

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sindark at Ask.Metafilter.Com Mark as irrelevant Undo

Salary and Position: How to get higher position & salary in an IT company quickly?

I passed out from college (B-Tech ECE) in 2011 but started of programming and website development since beginning of my college days . I worked with few startups , did freelancing .. Launched my own website which is quite popular in india . I worked...

Answer:

There are only two ways you can attain the position you seek. 1. Start your own company where you are...

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Mayur Kirtani at Quora Mark as irrelevant Undo

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