# File lib/sequel/adapters/oracle.rb, line 24
24:       def connect(server)
25:         opts = server_opts(server)
26:         if opts[:database]
27:           dbname = opts[:host] ? \
28:             "//#{opts[:host]}#{":#{opts[:port]}" if opts[:port]}/#{opts[:database]}" : opts[:database]
29:         else
30:           dbname = opts[:host]
31:         end
32:         conn = OCI8.new(opts[:user], opts[:password], dbname, opts[:privilege])
33:         if prefetch_rows = opts.fetch(:prefetch_rows, 100)
34:           conn.prefetch_rows = typecast_value_integer(prefetch_rows)
35:         end
36:         conn.autocommit = true
37:         conn.non_blocking = true
38:         
39:         # The ruby-oci8 gem which retrieves oracle columns with a type of
40:         # DATE, TIMESTAMP, TIMESTAMP WITH TIME ZONE is complex based on the
41:         # ruby version (1.9.2 or later) and Oracle version (9 or later)
42:         # In the now standard case of 1.9.2 and Oracle 9 or later, the timezone
43:         # is determined by the Oracle session timezone. Thus if the user
44:         # requests Sequel provide UTC timezone to the application,
45:         # we need to alter the session timezone to be UTC
46:         if Sequel.application_timezone == :utc
47:           conn.exec("ALTER SESSION SET TIME_ZONE='-00:00'")
48:         end
49:         
50:         class << conn
51:           attr_reader :prepared_statements
52:         end
53:         conn.instance_variable_set(:@prepared_statements, {})
54:         
55:         conn
56:       end

    # File lib/sequel/adapters/oracle.rb, line 58
58:       def disconnect_connection(c)
59:         c.logoff
60:       rescue OCIInvalidHandle
61:         nil
62:       end

    # File lib/sequel/adapters/oracle.rb, line 67
67:       def do(*a, &block)
68:         Sequel::Deprecation.deprecate('Database#do', 'Please use Database#execute')
69:         execute_dui(*a, &block)
70:       end

    # File lib/sequel/adapters/oracle.rb, line 64
64:       def execute(sql, opts={}, &block)
65:         _execute(nil, sql, opts, &block)
66:       end

    # File lib/sequel/adapters/oracle.rb, line 72
72:       def execute_insert(sql, opts={})
73:         _execute(:insert, sql, opts)
74:       end