convert

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 text field "presence_changed_at" with text values i.e. '2014/12/17 08:05:28 +0000 . I need to convert this into timestamp. In postgreSQL there is function TO_TIMESTAMP() , however in redshift this does not seem to be supported. I can get the date without time by TO_DATE("presence_changed_at",'YYYY/MM/DD HH24:MI:SS') which produces 2014-12-12 but i can't find any way to get TIMESTAMP format. Thanks in advance for solving this 回答1: try convert function: convert(timestamp,presence_changed_at) 回答2: It's surprisingly horrible to get a

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 large dataframe with ID numbers: ID.head() Out[64]: 0 4806105017087 1 4806105017087 2 4806105017087 3 4901295030089 4 4901295030089 These are all strings at the moment. I want to convert to int without using loops - for this I use ID.astype(int) . The problem is that some of my lines contain dirty data which cannot be converted to int , for e.g. ID[154382] Out[58]: 'CN414149' How can I (without using loops) remove these type of occurrences so that I can use astype with peace of mind? 回答1: You need add parameter errors='coerce' to

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: My lecturer gave me an assignment to create a program to convert and infix expression to postfix using Stacks. I've made the stack classes and some functions to read the infix expression. But this one function, called convertToPostfix(char * const inFix, char * const postFix) which is responsible to convert the inFix expression in the array inFix to the post fix expression in the array postFix using stacks, is not doing what it suppose to do. Can you guys help me out and tell me what I'm doing wrong? The following is code where the functions

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'm trying to use Image-Magick with PHP to convert SVG text into a PNG image. This SVG is a chart generated with NVD3 and I'd like to allow my users to download it as an image. Basically, I'm sending the SVG data, encoded with JSON to the PHP handler which is supposed to output it as a PNG image. But, this throws up the following error: Fatal error: Uncaught exception 'ImagickException' with message 'no decode delegate for this image format `' @ blob.c/BlobToImage/347' in svg2png.php:4 Stack trace: #0 svg2png.php(4): Imagick->readimageblob('

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 would like to convert from a RectF to a Rect in Android. Currently I have: RectF rectF = new RectF(); rectF.set( ... some values ... ); ... Rect rect = new Rect((int)rectF.left, (int)rectF.top, (int)rectF.right, (int)rectF.bottom)); Is there a better way? 回答1: Ah ha -- found the answer: rectF.round(rect); -- or -- rectF.roundOut(rect); 文章来源: What is the best way to convert from a RectF to a Rect in Android?

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'm having great trouble in converting the following SQL to LINQ to SQL, any one able to help out? SELECT dbo.ExpensesGroup.ExpenseGroupId, dbo.ExpensesGroup.Title, SUM(dbo.Expenses.Amount) AS TotalAmount, MAX(dbo.Expenses.DateLastTickled) AS LastTickledDate, MAX(dbo.ExpensesGroup.DateTime) AS Date, Username FROM dbo.Expenses INNER JOIN dbo.ExpensesGroup ON dbo.Expenses.ExpenseId = dbo.ExpensesGroup.ExpensesId WHERE dbo.Expenses.Status = 'AwaitingApproval' or dbo.Expenses.Status = 'AwaitingApprovelGrouping' GROUP BY dbo.ExpensesGroup

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: In this code i got the above error in lines i commented. public double bigzarb(long u, long v) { double n; long x; long y; long w; long z; string[] i = textBox7.Text.Split(','); long[] nums = new long[i.Length]; for (int counter = 0; counter < i.Length; counter++) { nums[counter] = Convert.ToInt32(i[counter]); } u = nums[0]; int firstdigits = Convert.ToInt32(Math.Floor(Math.Log10(u) + 1)); v = nums[1]; int seconddigits = Convert.ToInt32(Math.Floor(Math.Log10(v) + 1)); if (firstdigits >= seconddigits) { n = firstdigits; } else { n =

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 create a web service that will convert a doc/docx to png format. The problem I seem to have is I can't find any library or something close to it that will do what I need, considering I am looking for something free and not Office dependent (the server where the app will run does not have Office installed). Is there anything that can help me in obtaining this? Or must I choose between using something office dependant (like Interop - which btw I read is really bad to be used on server) or something that isn't free? Thanks 回答1: 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: This question already has an answer here: How do you parse and process HTML/XML in PHP? 28 answers How do I go from this (using PHP preferably): <bookstore> <book category="cooking"> <title lang="en">Everyday Italian</title> <author>Giada De Laurentiis</author> <year>2005</year> <price>30.00</price> </book> <book category="web" cover="paperback"> <title lang="en">Learning XML</title> <author>Erik T. Ray</author> <year>2003</year> <price>39.95</price> </book> </bookstore> To this (please imagine this to be an actual HTML table, I am not

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 CSV file that looks like: Name, Id, Address, Place, John, 12, "12 mark street", "New York", Jane, 11, "11 bark street", "New York"... I have about 500 coloumns. I would like to convert this to JSON, but I want the output to look like: { "name": [ "John", "Jane" ], "Id": [ 12, 11 ], "Address": [ "12 mark street", "12 bark street" ], "Place": [ "New York", "New York" ] } Using PHP, how can I iterate through the CSV file so that I can make each column in the first row an array that holds the values in the same column on all the other