On Thu, May 24, 2018 at 10:51 AM, Adrian Klaver <adrian.kla...@aklaver.com> wrote:
> On 05/23/2018 06:03 PM, tango ward wrote: > >> >> On Thu, May 24, 2018 at 8:19 AM, Adrian Klaver <adrian.kla...@aklaver.com >> <mailto:adrian.kla...@aklaver.com>> wrote: >> >> On 05/23/2018 05:11 PM, tango ward wrote: >> >> Sorry, i forgot the values. >> >> curr.pgsql.execute(''' >> INSERT INTO my_table(name, age) >> SELECT name, age >> WHERE NOT EXISTS(SELECT name FROM my_table WHERE name= name) >> ''', ('Scott', 23)) >> >> >> Pretty sure this would throw an exception as there are no parameter >> markers in the query for the parameter values in the tuple to bind >> to. So are you swallowing the exception in you code? >> >> >> >> Sorry, I don't understand, where should I place the from clause? >> I just saw a sample code like this in SO, so I gave it a shot >> >> >> Not tested: >> ''' >> INSERT INTO my_table(%(name)s, %(age)s) >> WHERE NOT EXISTS(SELECT name FROM my_table WHERE name= %(name)) >> ''', {'name': Scott', 'age': 23}) >> -- Adrian Klaver >> adrian.kla...@aklaver.com <mailto:adrian.kla...@aklaver.com> >> >> >> >> >> Updated my code to this: >> >> curr.pgsql.execute(''' >> INSERT INTO my_table(name, age) >> SELECT %s, %s >> > > The above is not going to work as you cannot use %s to substitute for > identifiers, in this case the column names name and age. > > > WHERE NOT EXISTS(SELECT name FROM my_table WHERE name= name) >> ''', ('Scott', 23)) >> >> If I remove SELECT statement, I will get an error message: error : >> psycopg2.ProgrammingError: syntax error at or near "WHERE" >> LINE 12: WHERE NOT EXISTS >> > > Try the example I showed previously. If you do not want to use the the > named parameters e.g %(name)s then use use %s and a tuple like: > > ''' > INSERT INTO my_table(%s, %s) > WHERE NOT EXISTS(SELECT name FROM my_table WHERE name= %s) > ''', (Scott', 23, 'Scott')) > > > > > >> Trying to coordinate with Lead Dev about adding Index On The Fly >> >> >> >> > > -- > Adrian Klaver > adrian.kla...@aklaver.com > Thank you Master, the name=%s solved it.
