Thanks Adrian, I did read the link you suggested.
I was had at the Introduction title, since it makes this mention "Alternatively, input can be from a file or from command line arguments." since the input would be from the back end of the database, as I am using Java DBC to access the database.
However, I have not been able to discern the correlation that exist between the JDBC statement and the definition of gexec [Sends the current query buffer to the server, then treats each column of each row of the query's output (if any) as an SQL statement to be executed.]
I guess it is that I am so new to the world of PG-15 that I just cannot understand or get your point. My reality is that esoteric definition go right over my head, since I am a newbie.
Would you be able to make the appropriate corrections to the PostgreSQL-15 schema passed to the JDBC Statement.executeUpdate() method?
Thanks in advance.
PD:
Are you saying that JDBC cannot handle or process \gexec, since it is PG-15 exclusive?
On 9/3/23 12:04 p.m., Adrian Klaver wrote:
On 9/3/23 09:00, Amn Ojee Uw wrote:
Hello!
This issue really puzzles me beyond intrigue.
Why would this schema:
*SELECT 'CREATE DATABASE jme_test_database' WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = 'jme_test_database')\gexec*
work when entered at the psql prompt, but not when passed as a parameter in a JDBC method?
The bellow snip demonstrates the the creation of a String object with same character string used in the PSQL#.
//CREATE DATABASE IF NOT EXISTS
//~~~~~~~~~~~~~~~~~~
*var s = new ***myString*(SELECT 'CREATE DATABASE jme_test_database' WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = 'jme_test_database')\gexec);**
\gexec is a psql specific meta-command.
See Meta-Commands here:
https://www.postgresql.org/docs/current/app-psql.html
Any help would be very much appreciated.
Thanks in advance.