Questions tagged [postgresql]
PostgreSQL is an open-source, relational database management system (RDBMS) available for all major platforms, including Linux, UNIX, Windows and OS X. Mention your version of Postgres when asking questions. Consider dba.stackexchange.com for questions concerning the administration or advanced features.
postgresql
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How do you debug functions with postgres?
I'm using pgAdmin III 1.8.4 and finding it a harsh mistress.
When writing stored procedures (functions), there's no query compilation. So I have no idea if my function will work until I call it.
How ...
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Determine cluster directory from Postgres service
Is it possible to determine the cluster directory being used by a Postgres server, from the server itself -- i.e. the service, (under Windows) was started by something like:
C:\foo\postgres.exe -D "D:...
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Programatically finding the number of rows affected by a Postgres COPY
I'm using Postgres 8.2 and the associated libpq library for ANSI C. I've skimmed the documentation and not found something that would give me that specific information.
In the "COPY" section of the ...
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Best way to create a unique number for each many to many relationship
I have a table of Students and a table of Courses that are connected through an intermediate table to create a many-to-many relationship (ie. a student can enroll in multiple courses and a course can ...
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Modify postgresql "list" aggregate to remove duplicates
One of my favorite postgres aggregates is "list", attributed to "Chris Rohlfs in the idocs" according to the scanty evidence I can find on the web.
CREATE FUNCTION comma_cat (text, text)
RETURNS ...
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Does plperlu reload Perl modules if they change? [duplicate]
If I wrote something in plperlu, and it used a Perl module (e.g. MyModule::Foo), when would that module be reloaded? Does it keep track of them like mod_perl's Apache2::Reload, so that a touch will ...
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Polymorphism in SQL database tables?
I currently have multiple tables in my database which consist of the same 'basic fields' like:
name character varying(100),
description text,
url character varying(255)
But I have multiple ...
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Database replication for redundancy using a free database and a Java with Spring & Hibernate web application
I have this in mind:
On each server: (they all are set up identically)
A free database like MySQL or PostgreSQL.
Tomcat 6.x for hosting Servlet based Java applications
Hibernate 3.x as the ORM tool
...
user14070
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Does PostgreSQL keep its pl* interpreters loaded persistently?
If I wrote something in plperlu, when would that module be reloaded? Every time the function ran? The first time it ran? Does the Perl DLL get unloaded if it hasn't been used in a while, and then ...
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How do I find all references from other tables to a specific row?
So I have an address table that is shared among various other tables, such as schools, parks, churches, etc. Schools, parks, etc all foreign key to a row in address.
What I'm wondering is, if I ...
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Read number of columns and their type from query result table (in C)
I use PostgreSQL database and C to connect to it. With a help from dyntest.pgc I can access to number of columns and their (SQL3) types from a result table of a query.
Problem is that when result ...
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PostgreSQL management and monitoring
Moving from Oracle to PostgreSQL, what (preferably free/OSS) software/tools are available that replace Oracle Enterprise Manager? I'm aware of pgAdmin, as well as some tools bundled into EnterpriseDB'...
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How to know a timezone of a timestamp in postgresql 8.3
I'm using postgresql 8.3 and i would like to know the timezone of a particular timestamp (a column in a table).
In the documentation i've found the keyword "timezone"
But i don't understand how to ...
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PHP not loading php_pgsql.dll on Windows
PHP 5.2.8 is refusing to load php_pgsql.dll, with the following error:
Warning: PHP Startup: Unable to load dynamic library 'D:\PHP\ext\php_pgsql.dll' - The specified module could not be found.
in ...
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