The drop database command is not working in sql shell. It shows db doesn't exists. But pgadmin and \l shows the db. What is the problem and how to delete the db?
Try writing "myDatabase" (with quotation marks "") since your name is case-sensitive.
In general it is better to use lower-case names in postgres and I think in unix in general.
Related
Im currently using the tool pg_dump to backup my database.
I have a lot of database. I don't know their full name but I know that all DATABASES have a well defined prefix.
I would like to automate the process of backup all my DATABASES, however, i have not found a way to specify pg_dump to dump multiple DATABASE that have the same prefix.
I said database and not table nor schema, because I tried the commands in the pgsql doc which gives the options -n for schemas and -t for tables.
But that's not what I want to do, I want to save all my databases with a defined prefix.
Any help in this matter would be greatly appreciated
I am new to Postgresql and so far I have not found a way to drop a table from specific database. To give some context:
We are doing a synchronization from Oracle to PostgreSQL of 5 tables. In postgres I have a database SoloCopy and the schema is the default public. In the Postgresql instance we have also 2 more databases SoloSynch and postgres (the default one).
What I want to do is to select SoloCopy database and:
DROP TABLE public.table1;
When I do the above DROP statement table1 is deleted only from the database that was selected when opening SQL Query. But I want to specify the database before that and to be irrelevant from where the SQL Query was open. How can I do that?
I found an answer on my own. Setup can be found here:
Psql in Task Scheduler does not run a file script
Basically I needed to use PSQL and with the connection string there I connect to a specific DB, which I can drop the tables from. The details for PGPASSWORD and the .bat file I ended up creating are in the link above. Had to start everything from CMD and switch to psql from there.
How can I move or switch one database to another database using PostgreSQL 9.3 version in shell script(psql)?
Example:
testdb=#
to
mydb=#
If you mean in a script sourced by psql via -f or \i, you can use the command \connect (shorthand \c).
It doesn't just switch databases, it actually disconnects and reconnects. Any SET commands, etc, are not preserved across reconnection.
Simply use below statement:
\c database name
I create a database with a hyphen in the middle of the name with createdb. That successfully creates the database, but within the psql interactive client, I get a syntax error if I try a command like this:
ALTER DATABASE my-database SET SCHEMA = myschema,public;
psql complains of a syntax error at or near "-"
Is there some documentation for what counts as a valid PostgreSQL database name?
Should I just underscores instead of hyphens?
The documentation you asked about is here:
http://www.postgresql.org/docs/current/interactive/sql-syntax-lexical.html#SQL-SYNTAX-IDENTIFIERS
Most people just stick to lowercase letters, numeric digits, and underscores -- to avoid typing the quotes all the time.
Try putting it in double quotes:
ALTER DATABASE "my-database" SET SCHEMA = myschema,public;
I faced one issue and above answers helped me. So sharing scenario on dbname
Scenario:I was tried to change database name using PG admin III. My database name was My_Database
running below queries failed:
ALTER DATABASE My_Database RENAME TO dba;
ALTER DATABASE [My_Database] RENAME TO dba;
ALTER DATABASE 'My_Database' RENAME TO dba;
Then i tried below and its successful
ALTER DATABASE "My_Database" RENAME TO dba;
Could anybody help me to rename database in postgresql from the Linux shell
ALTER DATABASE name RENAME TO newname
The above statement doesn't execute
This may be a stupidly obvious question. Are you running psql as the postgres user?
e.g.
$ sudo -u postgres psql
# alter database FOO rename to BAR;
# \q
Which version of postgresql? From the 8.1 Documentation:
ALTER DATABASE name RENAME TO newname;
Only the database owner or a superuser
can rename a database; non-superuser
owners must also have the CREATEDB
privilege. The current database cannot
be renamed. (Connect to a different
database if you need to do that.)
You might need privileges to rename db. Only db owner or super user can do that, owner also needs a createdb privilege.
Also the database you're connected to cannot be renamed, you need to connect to a different one
You cannot rename a database you are connected to. Make sure you are disconnected before changing the dbname.
In PGAdmin, you can just right-click on the database itself, go to properties, and rename it from there.
As others have pointed out, you may also try the command :
ALTER DATABASE (DB NAME) RENAME TO (NEW DB NAME);
Disconnect database (Ctrl + F2 in DataGrip)
And then:
$ psql -U postgres
postgres=# ALTER DATABASE db_a RENAME TO db_b;
GL
Below given are the steps for renaming the database in postgresql.
1) Right click on database and choose refresh.
2) Right click again and choose properties option.
3) Under the properties tab, you can change the name with the one that you desire.