reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v MaxUndoItems /f Editor’s note The above registry edit applies only to the Explorer shell; it does not remove the undo and redo feature or theCtrl+ZandCtrl+Yhotkeys in individual applications, such as Office. I...
update duplicate_key set id=id-1 order by id; 如果这样做,就不会出错,原理上面已做出了说明。 如果是innodb引擎就不会出现这样的情况,因为他的聚集索引存储方式会按顺序来显示。 在myisam引擎使用的时候如果你delete了其中的几条数据,这时的表就是一个hole表。 如果你不使用表维护命令进行维护,你新插入的数...
Part 1: Can I Undo Delete on Google Drive? The Answer is yes, but the method of undoing a delete action on Google Drive depends on how the file was deleted. If you've accidentally deleted a file and it's still in your Trash folder, you're in luck! Google Drive's Trash folder ...
(1 row) 往表里insert4000万数据,delete删除2000万,删除数据后表大小并没有改变。原因是删除数据只在数据行上打上标识,并没有做真正的删除,真正的清理死元组操作依赖vacuum进程完成。 Vacuum在PostgreSQL数据库运维过程中非常重要,它会影响到收集统计信息,数据块回收,XID回收。。合理使用vacuum参数会对性能起到非常重要...
Run vim, and the log will automatically be appended to the file, and you may watch it usingtail: $tail -F ~/undotree_debug.log If you want to disable debug, just delete that file. License BSD Author Ming Bai <mbbill AT gmail DOT COM>...
Opcode 10 :Set Key Links (change the forward & backward key links on a cluster key) Opcode 11 :Quick Multi-Insert (ex: insert as select ...) Opcode 12 :Quick Multi-Delete Opcode 13 :Toggle Block Header flags Layer 12 : Cluster - KCOCODCL [?] ...
For example, if you’ve deleted some text while typing something on a Windows PC, you can bring the text back using the Undo command. If you again want to delete the text, you can use the Redo command. Recommended videos Powered byAnyClip ...
We’ll start by customizing Unity. We’ll add and delete icons from the applications Launcher on the left-hand side of the screen, then we’ll add icons and folders to the desktop. I’ll introduce some Unity tweaking tools. If these changes aren’t enough for you, we’ll move on to...
{ "key": "cmd+z", "command": "undo", "when": "editorFocus" }, { "key": "cmd+z", "command": "-undo" }, { "key": "shift+cmd+z", "command": "redo", "when": "editorFocus" }, { "key": "shift+cmd+z", "command": "-redo" } ...
self.filename = os.path.split(self.filepath)[1]returnTrueexceptException:# as e:raisedefstart_featureextr_thread(self):"""Start thread for feature extraction."""self.distr_entry.delete(1.0, tk.END) self.status.set("processing...")ifself.filepathisNoneorself.article_idisNone: ...