473,554 Members | 4,731 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

PostGreSql database features questions

Hi:

I'm very new to PostGreSql database and actually looking to evaluate for
one of our project needs. Below please find some questions. I'm hoping
if I can get some insight into these questions.

Thanks.

Ish...

1) Does PostGreSql allows for multiple databases to be open at the same
time?

2) Does PostGreSql have the ability to tag a Database/Table to be a
persistent or non-persistent database/table? By this question I mean,
that I may need to have a table that I don't want to be saved to the
hard disk/ flash file system and only want to keep it in memory and
other tables/database I may want to save to hard disk or flash. Does
PostGreSql allow for that?

Nov 11 '05 #1
4 3404
Ish Ahluwalia <ah*******@erin c.com> writes:
1) Does PostGreSql allows for multiple databases to be open at the same
time?
The backend supports access to multiple databases at the same time.
2) Does PostGreSql have the ability to tag a Database/Table to be a
persistent or non-persistent database/table? By this question I
mean, that I may need to have a table that I don't want to be saved
to the hard disk/ flash file system and only want to keep it in
memory and other tables/database I may want to save to hard disk or
flash. Does PostGreSql allow for that?


There has been discussion of this, but no implementation has emerged.
--
let name="cbbrowne" and tld="libertyrms .info" in name ^ "@" ^ tld;;
<http://dev6.int.libert yrms.com/>
Christopher Browne
(416) 646 3304 x124 (land)
Nov 11 '05 #2
Ish Ahluwalia <ah*******@erin c.com> writes:
1) Does PostGreSql allows for multiple databases to be open at the same
time?
The backend supports access to multiple databases at the same time.
2) Does PostGreSql have the ability to tag a Database/Table to be a
persistent or non-persistent database/table? By this question I
mean, that I may need to have a table that I don't want to be saved
to the hard disk/ flash file system and only want to keep it in
memory and other tables/database I may want to save to hard disk or
flash. Does PostGreSql allow for that?


There has been discussion of this, but no implementation has emerged.
--
let name="cbbrowne" and tld="libertyrms .info" in name ^ "@" ^ tld;;
<http://dev6.int.libert yrms.com/>
Christopher Browne
(416) 646 3304 x124 (land)
Nov 11 '05 #3
On Friday 12 September 2003 18:38, Ish Ahluwalia wrote:
Hi:

I'm very new to PostGreSql database and actually looking to evaluate for
one of our project needs. Below please find some questions. I'm hoping
if I can get some insight into these questions.

Thanks.

Ish...

1) Does PostGreSql allows for multiple databases to be open at the same
time?
Yes, multiple clients to multiple databases.
2) Does PostGreSql have the ability to tag a Database/Table to be a
persistent or non-persistent database/table? By this question I mean,
that I may need to have a table that I don't want to be saved to the
hard disk/ flash file system and only want to keep it in memory and
other tables/database I may want to save to hard disk or flash. Does
PostGreSql allow for that?


You can mark a table as TEMPORARY which means it will only survive for the
length of a connection (and only be visible to that connection). I'm not sure
it makes sense to run the database from flash, but you could copy the data to
flash when you shut PG down.

--
Richard Huxton
Archonet Ltd

---------------------------(end of broadcast)---------------------------
TIP 8: explain analyze is your friend

Nov 11 '05 #4
On Friday 12 September 2003 18:38, Ish Ahluwalia wrote:
Hi:

I'm very new to PostGreSql database and actually looking to evaluate for
one of our project needs. Below please find some questions. I'm hoping
if I can get some insight into these questions.

Thanks.

Ish...

1) Does PostGreSql allows for multiple databases to be open at the same
time?
Yes, multiple clients to multiple databases.
2) Does PostGreSql have the ability to tag a Database/Table to be a
persistent or non-persistent database/table? By this question I mean,
that I may need to have a table that I don't want to be saved to the
hard disk/ flash file system and only want to keep it in memory and
other tables/database I may want to save to hard disk or flash. Does
PostGreSql allow for that?


You can mark a table as TEMPORARY which means it will only survive for the
length of a connection (and only be visible to that connection). I'm not sure
it makes sense to run the database from flash, but you could copy the data to
flash when you shut PG down.

--
Richard Huxton
Archonet Ltd

---------------------------(end of broadcast)---------------------------
TIP 8: explain analyze is your friend

Nov 11 '05 #5

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

1
2160
by: Otis Green | last post by:
Vote for or against a new newsgroup proposal. To summarize what you need to do, just send an empty e-mail to postgresql-ballot@netagw.com You will receive a ballot by e-mail. Follow the instructions and vote. _______________________________________________________________________ FIRST CALL FOR VOTES (of 2)
1
2820
by: Mateusz [PEYN] Adamus | last post by:
Hi I'm a developer currently wondering which DB choose for my next project. I looked on the net found ofcourse Oracle but also came up with PostgreSQL. I heard quite few things about it, all good so I'm wondering how really it is. Till now I've been working on MSSQL and Interbase. So PostgreSQL and Oracle are pretty new to me. I would...
125
14591
by: Sarah Tanembaum | last post by:
Beside its an opensource and supported by community, what's the fundamental differences between PostgreSQL and those high-price commercial database (and some are bloated such as Oracle) from software giant such as Microsoft SQL Server, Oracle, and Sybase? Is PostgreSQL reliable enough to be used for high-end commercial application? Thanks
0
446
by: Ish Ahluwalia | last post by:
Hi: I'm very new to PostGreSql database and actually looking to evaluate for one of our project needs. Below please find some questions. I'm hoping if I can get some insight into these questions. Thanks. Ish...
74
7902
by: John Wells | last post by:
Yes, I know you've seen the above subject before, so please be gentle with the flamethrowers. I'm preparing to enter a discussion with management at my company regarding going forward as either a MySql shop or a Postgresql shop. It's my opinion that we should be using PG, because of the full ACID support, and the license involved. A...
0
1382
by: Chris Travers | last post by:
Hi all; This seems at least somewhat on-topic here, so at the risk of seeming shamelessly self-promoting, I figured I would ask. I am the main developer of an open source CRM suite (http://hermesweb.sourceforge.net). We are in the beta-testing of our 0.3.0 release which will include experimental support for shared hosting environments. ...
3
6173
by: Robert Abi Saab | last post by:
Hi everyone. I just finished a course on PostgreSQL and I found out that PostgreSQL doesn't provide any object relational features (as claimed in the official documentation), except table inheritance and very limited user defined types (I defined a UDT with 2 attributes and couldn't use it in a table, and the trainer said it must contain 1...
10
1670
by: Laimis K | last post by:
Hi, I'm oracle man. So, how about features in postgesql which exists in oracle db (order is casual) ? 1. Sequences 2. Packages 3. Functions/procedures 4. Full-text 5. Triggers
1
6368
by: John Wells | last post by:
Guys, Now that Ingres has been open-sourced, I'm curious about where it stands with regards to PostgreSQL. Is it a worthy competitor? PostgreSQL has been my database of choice for many years, and I'm very interested in how Ingres and PostgreSQL stack up in terms of features and performance. Any insight you can provide will be very much...
0
7541
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language...
0
7821
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. ...
1
7586
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For...
0
7900
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the...
1
5452
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes...
0
5169
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert...
0
3591
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in...
0
3571
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
2033
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.