On 1/6/22 1:06 AM, Igor Korot wrote:
Hi, Ron,
On Thu, Jan 6, 2022 at 1:01 AM Ron <ronljohnsonjr@gmail.com> wrote:
On 1/6/22 12:39 AM, Igor Korot wrote:
Hi, ALL,
In SQLite you can write:
SELECT a, b, c FROM foo WHERE id = :id;
where ":id" is the named parameter.
The query above is similar to
SELECT a,b,c FROM foo WHERE id = ?;
except that the parameter has a name.
Is there a way to write such a SELECT statement with the
named parameter in PostgreSQL?
Absolutely. Of course, the exact method depends on the client. Are you
referring to psql?
If so, then here's an example:
$ psql12 -v S=456789012 test
psql (12.8 (Ubuntu 12.8-1.pgdg18.04+1))
Type "help" for help.
test=# select * from employee where ssn = :'S'; ssn | name | ssn_int
-----------+-----------------+----------- 456789012 | Fred Flintstone | 456789012
(1 row)
In this case, column ssn is of type varchar(9).
Is the syntax available since 9.0+? Or later?
I'm writing C++.
Like I said before... "the exact method depends on the client". The C++ client
library is not the same as the psql
application.
IOW, read the C+ client library documentation.
--
Angular momentum makes the world go 'round.
