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0
votes
1answer
117 views

getting error while installing memcached_function

now i am working with memcached with mysql cluster 7.2 for that i am installed libevent-1.4.14b-stable.tar.gz memcached-1.4.5.tar.gz libmemcached-0.8.tar.gz then ...
6
votes
1answer
397 views

How much memory is a table taking up?

Is there a way to find out how much memory a table is taking up in SQL Server (2005 and greater)? For example, suppose I have a table with 30 million records. I'd like to know how many pages ...
5
votes
1answer
795 views

How to calculate cache misses for PostgreSQL

I'm administering a server where a tool using a PostgreSQL runs. The tool takes care of most PostgreSQL configurations by itself, but I'm observing some performance problems. I could confirm at OS ...
4
votes
2answers
167 views

MySQL: Is it safe to have a table with multiple millions of rows?

I have a very complex search query to write that will touch many tables, have conditions and joins. For efficiency reasons, I am strongly considering creating a "cache table" where I would maybe once ...
1
vote
1answer
67 views

Different plans or buffers for different connections?

We had an issue in our dev environment where a procedure call timed out from the web server after 30 seconds. I traced the query and ran it manually (same params and all) from SSMS and it executed in ...
2
votes
2answers
2k views

Does Oracle cache queries when using a database link

Some vendor told us that we should not use database link between our database and theirs as the queries executed over a database link would not be cached, nor optimized. I can't find any information ...
1
vote
1answer
332 views

MySQL: How do I limit or prevent caching for specific tables?

I'm currently working on a database schema for tables to hold user information on a website with integrated forums. Right now my idea is to have all the data in two separate tables: one table with ...
1
vote
2answers
153 views

Functioning of Oracle's Server result Cache

I am reading the Oracle concepts doc and have a doubt [about general cache mechanism ] : PL/SQL function code can include a request to cache its results. Upon invocation of this function, the ...
3
votes
5answers
3k views

Why is MySQL caching data on our dynamic PHP site?

We are having an annoyance with our PHP/MySQL site in that it seems to cache data from the database and our PHP pages are showing out of date records. In fact, there are pages that link to URLs that ...
10
votes
5answers
6k views

PostgreSQL: Force data into memory

Is there a systematic way to force PostgreSQL to load a specific table into memory, or at least read it from disk so that it will be cached by the system?