cursor

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Suppose I'm editing the following document (* = cursor): Lions Tigers Kittens Puppies * Humans What sequence can I use to delete the surrounding white space so that I'm left with: Lions Tigers Kittens Puppies * Humans Note: I'm looking for an answer that handles any number of empty lines, not just this exact case. EDIT 1: Line numbers are unknown and I only want to effect the span my cursor is in. EDIT 2: Edited example to show I need to preserve leading whitespace on edges Thanks 回答1: Easy. In normal mode, dipO<Esc> should do it.

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have imported some data using an application that collects info from IMDB and transfers them into a MYSQL database. It seems the fields have not been normalized and contained many values within 1 field For example: Table Movie MovieID Movie_Title Written_By 1 Movie1 Person1, Person2 2 Movie2 Person3 3 Movie3 Person4, Person2, Person6 Is there way to separate the values and have them inserted into another table to something like this and without any duplicates? Table Writers WriterID Written_By MovieId 1 Person1 1 2 Person2 1 3 Person3 3 I

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to copy a database that I made with SQLite manager, in which I did: CREATE TABLE "android_metadata" ("locale" TEXT DEFAULT 'en_US') and INSERT INTO "android_metadata" VALUES ('en_US') And I named all my primary keys _id . My database gets copied(in the first run there are various red messages in the logcat); thereafter, it only gives an error when I query it. MainActivity public class MainActivity extends Activity { String CNAME=" ques",TABLE_NAME=" JAVAQ"; @Override public void onCreate(Bundle savedInstanceState) { super

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I know this is a fairly common problem. I'm writing a small Flask app and I'm trying to feed some queries back to the view. I've connected to my local MongoDB setup, and made a successful query - but I can't generate a json object with it. The most common solution I've seen is to import json_util from pymongo i.e. import json from pymongo import json_util results = connection.get_collection('papayas_papaya') results = results.find({ 'identifier': '1', }) serialized_results = [json.dumps(result, default=json_util.default, separators=(',', ':'

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This question already has an answer here: Getting mouse position in c# 8 answers help me please! :) My program should get cursor position (all screen) every ~50 ms and them write in text Box . How it make? Example: private void Form1_MouseMove(object sender, MouseEventArgs e) { textBox1.Text = e.X.ToString(); textBox2.Text = e.Y.ToString(); } but we get position only in window it's really do? 回答1: you can use Cursor.Position : textBox1.Text = Cursor.Position.X.ToString(); textBox2.Text = Cursor.Position.Y.ToString(); btw , welcome to SO ,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a query, that returns multiple tables, something like that: SELECT TableName, DatabaseName +'.'+ TableName, ColumnName FROM DBC.Columns WHERE ColumnName = 'id' And I need to loop through these tables by looking to the information stored in these tables, in order to get only specific tables. I tried something like code below, using 'LOOP' and cursor, but it says that Query is invalid (code have been taken from here ): DECLARE cursor_Tables CURSOR FOR SELECT DatabaseName || '.' || TableName FROM DBC.Columns WHERE ColumnName ='id'; OPEN

I have a plot of 3 data sets that have datetime objetcs on the x axis. I want to have a cursor that snaps to the data and shows the precise x and y value. I already have a "snap to cursor", but that only works for scalar x axes. Can anyone help me to modify the snap to cursor so that it works for datetime x axes as well? Here are my data plots: import numpy as np import matplotlib.pyplot as plot import matplotlib.ticker as mticker import matplotlib.dates as dates import datetime import Helpers fig = plot.figure(1) DAU = ( 2, 20, 25, 60, 190, 210, 18, 196, 212) WAU = ( 50, 160, 412, 403, 308,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: It is based on the interview question that I faced. Very short definition can be It can be used to manipulate the rows returned by a query. Besides the use of the cursor (Points are listed here on MSDN), I have a question in my mind that if we can perform all the operations using query or stored procedure (if I'm not wrong, Like we can use Transact-SQL for ms-sql), is there any concrete point that we should use cursor? 回答1: Using cursors compared to big resultsets is like using video streaming instead of downloading an video in one