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query -- executes a SQL command
SQL command (string).
- pgqueryobject or None
Bad argument type, or too many arguments.
Empty SQL query.
Error during query processing, or invalid
query() method sends a SQL query to the database. If the query is an
insert statement, the return value is the OID of the newly inserted row. If it is
otherwise a query that does not return a result (i.e., is not a
some kind of SELECT statement), it
returns None. Otherwise, it returns a pgqueryobject that can be accessed via the
getresult() or dictresult() methods or simply printed.