insertion

Javascript multiple Dynamic Insertion

ぐ巨炮叔叔 提交于 2019-11-28 14:48:57
When we do dynamic insertion for javascript, sometimes order matters. We sometimes solve this by using onload property; however, if there are many external javascripts, and those scripts has to be loaded in order, then what should we do? I solved this problem by recursively defined onload functions; however not so sure about efficiency... since this is a script, I think it does lazy eval.... Any help? //recursively create external javascript loading chain //cautiously add url list according to the loading order //this function takes a list of urls of external javascript function loadScript(url

WMI: Get USB device description on insertion

我的梦境 提交于 2019-11-28 00:47:21
问题 How can I get a device Id and other description on insertion of USB device? I've found an example how to get notified about USB device insertion/removal. But how to get device desrtiption info? Here is my code snippet: WqlEventQuery q; ManagementScope scope = new ManagementScope("root\\CIMV2"); scope.Options.EnablePrivileges = true; try { q = new WqlEventQuery(); q.EventClassName = "__InstanceDeletionEvent"; q.WithinInterval = new TimeSpan(0, 0, 3); q.Condition = @"TargetInstance ISA 'Win32

Python MySQLdb issues (TypeError: %d format: a number is required, not str)

有些话、适合烂在心里 提交于 2019-11-27 06:47:24
I am trying to do the following insert operation: cursor.execute(""" insert into tree (id,parent_id,level,description,code,start,end) values (%d,%d,%d,%s,%s,%f,%f) """, (1,1,1,'abc','def',1,1) ) The structure of my MYSQL table is: id int(255), parent_id int(255), level int(11), description varchar(255), code varchar(255), start decimal(25,4), end decimal(25,4) However when I run my program, I get the error " File "/usr/lib/pymodules/python2.6/MySQLdb/cursors.py", line 151, in execute query = query % db.literal(args) TypeError: %d format: a number is required, not str" Keith The format string

How to initialize a TreeMap with pre-sorted data?

点点圈 提交于 2019-11-27 06:15:25
问题 My app uses a TreeMap to keep data sorted and have log(n) lookups & inserts. This works great in the general case while the app is running, but when the app first starts, I need to initialize the TreeMap with several million longs that I get in sorted order (ascending). Since these initialization values are already sorted, is there any way to insert them into the TreeMap without paying the log(n) cost of tree insertion and re-balancing? 回答1: Sure! The TreeMap.putAll method (and the TreeMap

Python MySQLdb issues (TypeError: %d format: a number is required, not str)

霸气de小男生 提交于 2019-11-26 12:10:17
问题 I am trying to do the following insert operation: cursor.execute(\"\"\" insert into tree (id,parent_id,level,description,code,start,end) values (%d,%d,%d,%s,%s,%f,%f) \"\"\", (1,1,1,\'abc\',\'def\',1,1) ) The structure of my MYSQL table is: id int(255), parent_id int(255), level int(11), description varchar(255), code varchar(255), start decimal(25,4), end decimal(25,4) However when I run my program, I get the error \" File \"/usr/lib/pymodules/python2.6/MySQLdb/cursors.py\", line 151, in