Create schema with in a specific database from a script file

On Thu, Feb 1, 2018 at 9:09 PM, Abhra Kar <abhra.kar@gmail.com> wrote:

Hi,

I have to write script for psql in a xyz.sh file which should create a
schema in a specific data.In psql prompt I achieve it like --

postgres=# \c ABC

ABC=# create schema authorization myschema

In xyz.sh I executed the following script ---

*su -c "psql -c \"\c ABC \"" postgres*

*su -c "psql -c \"create schema authorization myschema\"" postgres*

In the terminal got message “connected to ABC database”. But schema
created with in postgres database not with in ABC database.

What should be the proper script ?

Thanks and Regards,

Abhra

*> But schema created with in postgres database not with in ABC database. *

*Just specify the database in the command line:*

*EG: su -c "psql -d ABC"*

--
*Melvin Davidson*
I reserve the right to fantasize. Whether or not you
wish to share my fantasy is entirely up to you.

*sudo **-u** postgres createdb ABC*

*su **-c* *"**psql -d ABC**"*

*if [* *$3* *==* *'xxxxx'* *]*

*then*

*su **-c* *"**psql -c **\"**grant all privileges on database ABC** to xxxx*
*\"**"** postgres*

*su **-c* *"**psql -c **\"**create schema authorization xxxx**\"**"**
postgres*

*else*

*su **-c* *"**psql -c **\"**grant all privileges on database ABC to yyyy*
*\"**"** postgres*

*su **-c* *"**psql -c **\"**create schema authorization xxxx**\"**"*
* postgres*

*fi*

Hi Melvin,
I executed the above script but xxxx schema created with
in postgres db not with in ABC db. And in terminal didn't show the message
connected to ABC database. What is wrong I am doing here?

Regards,
Abhra

On Fri, Feb 2, 2018 at 7:48 AM, Melvin Davidson <melvin6925@gmail.com>
wrote:

On Thu, Feb 1, 2018 at 9:42 PM, Abhra Kar <abhra.kar@gmail.com> wrote:

*sudo **-u** postgres createdb ABC*

*su **-c* *"**psql -d ABC**"*

*if [* *$3* *==* *'xxxxx'* *]*

*then*

*su **-c* *"**psql -c **\"**grant all privileges on database ABC** to
xxxx**\"**"** postgres*

*su **-c* *"**psql -c **\"**create schema authorization xxxx**\"**"**
postgres*

*else*

*su **-c* *"**psql -c **\"**grant all privileges on database ABC to yyyy*
*\"**"** postgres*

*su **-c* *"**psql -c **\"**create schema authorization xxxx**\"**"*
* postgres*

*fi*

Hi Melvin,
I executed the above script but xxxx schema created with
in postgres db not with in ABC db. And in terminal didn't show the message
connected to ABC database. What is wrong I am doing here?

Regards,
Abhra

On Fri, Feb 2, 2018 at 7:48 AM, Melvin Davidson <melvin6925@gmail.com>
wrote:

On Thu, Feb 1, 2018 at 9:09 PM, Abhra Kar <abhra.kar@gmail.com> wrote:

Hi,

I have to write script for psql in a xyz.sh file which should create
a schema in a specific data.In psql prompt I achieve it like --

postgres=# \c ABC

ABC=# create schema authorization myschema

In xyz.sh I executed the following script ---

*su -c "psql -c \"\c ABC \"" postgres*

*su -c "psql -c \"create schema authorization myschema\"" postgres*

In the terminal got message “connected to ABC database”. But schema
created with in postgres database not with in ABC database.

What should be the proper script ?

Thanks and Regards,

Abhra

*> But schema created with in postgres database not with in ABC database.
*

*Just specify the database in the command line:*

*EG: su -c "psql -d ABC"*

--
*Melvin Davidson*
I reserve the right to fantasize. Whether or not you
wish to share my fantasy is entirely up to you.

*> I executed the above script but xxxx schema created with in postgres db
not with in ABC db ...*

*1. Please do not top post. The convention is to bottom post in this list.*

*2. You code is not a proper bash script. I suggest you google how to write
bash scripts as this list is*

* is for PostgreSQL help, not bash*

*3. You are just submitting MULTIPLE psql commands. You need to just start
the psql session, then *

* submit all additional commands inside the psql session.*

*EG: psql -d somedb* *grant all privileges on database ABC** to xxxx*
*;*

* ....*

* \q*
--
*Melvin Davidson*
I reserve the right to fantasize. Whether or not you
wish to share my fantasy is entirely up to you.

On Thursday, February 1, 2018, Abhra Kar <abhra.kar@gmail.com> wrote:

In xyz.sh I executed the following script ---

*su -c "psql -c \"\c ABC \"" postgres*

*su -c "psql -c \"create schema authorization myschema\"" postgres*

In the terminal got message “connected to ABC database”. But schema
created with in postgres database not with in ABC database.

Right. psql connected to the Postgres database, executed \c ABC which
caused the session to connect to ABC. Then, seeing no other commands, that
psql session disconnected. Then a brand new session was opened to the
postgres database and in that new session created the schema.

Every psql command in a script is independent of all others, there is no
state maintained.

For psql scripts in bash I find:

psql <<SQL
<script here>
SQL

To be the better form than trying to use -c. Or put the psql code in its
own file and use -f (really preferred though more files and navigation to
deal with).

And you should probably try to avoid using "su" as a crutch to make things
work. Invoking commands as root is dangerous.

David J.