Re: doubt about the database

On Sun, 2004-09-26 at 01:49, maridu h.s.n.v.prasad wrote:
> subscribe
> end
>
> hai sir
> i am using the postgresql 7.2 my doubt is
> what is the command of to see the list of databases
> i create a database named "jntuoes"
> database created it's displayed
> but i want to know the command
> so please give me the replay

in psql, you use \l

smarlowe=> \l
List of databases
Name | Owner | Encoding
-----------+----------+-----------
blog | smarlowe | SQL_ASCII
postgres | postgres | SQL_ASCII
smarlowe | smarlowe | SQL_ASCII
template0 | postgres | SQL_ASCII
template1 | postgres | SQL_ASCII
(5 rows)

If you want to execute a command to see it from SQL (i.e. an application
etc...) you can find the queries psql uses by starting it with the -E
switch, like so:

[smarlowe(at)localhost smarlowe]$ psql -E
Welcome to psql 7.4.5, the PostgreSQL interactive terminal.

Type: \copyright for distribution terms
\h for help with SQL commands
\? for help on internal slash commands
\g or terminate with semicolon to execute query
\q to quit

smarlowe=> \l
********* QUERY **********
SELECT d.datname as "Name",
u.usename as "Owner",
pg_catalog.pg_encoding_to_char(d.encoding) as "Encoding"
FROM pg_catalog.pg_database d
LEFT JOIN pg_catalog.pg_user u ON d.datdba = u.usesysid
ORDER BY 1;
**************************

List of databases
Name | Owner | Encoding
-----------+----------+-----------
blog | smarlowe | SQL_ASCII
postgres | postgres | SQL_ASCII
smarlowe | smarlowe | SQL_ASCII
template0 | postgres | SQL_ASCII
template1 | postgres | SQL_ASCII
(5 rows)

Hope that helps.