rows

问题 For some reason I am only getting the first few rows of data back from my query. I'm not sure what I am doing wrong. I need to get all the objects from one column named states row by row. But its only grabbing the first few rows. What am I doing wrong? ParseQuery<ParseObject> system = ParseQuery.getQuery("StatesSystem"); // system.fromLocalDatastore(); system.setLimit(30); system.orderByAscending("SpinnersTitle"); // system.whereExists("System"); system.findInBackground(new FindCallback

问题 The DataTable (dt) stores the retrieved values of carID's and makes so it stores like 3 rows within the DataTable, I also have another DataTable called dt2 which also stores carID's and makes, I am trying to loop through each row in the dt to see if any carID stored in the dt exists in any of the rows in dt2, here is what I have so far: DataTable dt = w.getUserCars(userID); foreach (DataRow dr in dt.Rows) { string carID = dr["carID"].ToString(); } How do I do this? 回答1: You should be able to

问题 I have a script that can take the final redirection url and save it into CSV file. The script write codes in 1 column for example A1 then A3 then A5 How to make it write the codes by rows for example A1 B1 C1 D1 please see this the red color that what i want, the blue color that is the final result and i don't want it to be like that ( the list in 1 column and goes down A1 A3 A5 and there are a spaces between every cell !! ) this is my final script import urllib2 import csv import sys url =

问题 In c++, I can create a 2D array with fixed number of columns, say 5, as follows: char (*c)[5]; then I can allocate memory for rows as follows c = new char[n][5]; where n can be any variable which can be assigned value even at run time. I would like to know whether and how can I dynamically allocate variable amount of memory to each row with this method. i.e. I want to use first statement as such but can modify the second statement. 回答1: Instead of a pointer to an array, you'd make a pointer

问题 I am trying to add the SUM of every 3rd row. I tried manually doing each one (ex: "H8+H11+H14" etc), but Excel halted the execution when I tried that (for 240'ish boxes), and refused to add each cell like that (it was too much for Excel to parse, process and execute). The rows I want to find the SUM of are (give or take) 245 rows at a time. | APPLICANTS | # | | INTERVIEWED | # | | HIRED | # | And there are about 245 entries (each with the "Applicants", "Interviewed" fields) of this nature I

问题 looking to write an R script that will search a column for a specific value and begin sub setting rows until a specific text value is reached. Example: X1 X2 [1,] "a" "1" [2,] "b" "2" [3,] "c" "3" [4,] "d" "4" [5,] "e" "5" [6,] "f" "6" [7,] "c" "7" [8,] "k" "8" What I'd like to do is search through X1 until the letter 'c' is found, and begin to subset rows until another letter 'c' is found, at which point the subset procedure would stop. Using the above example, the result should be a vector

问题 Okay I'll discuss my problem with images so we can solve it easily. Hoping. First, The image below shows the PersonalInfo gridview under PersonalInfo.aspx Second, The image below shows the MobileInfo gridview under MobileINfo.aspx Third, now we are going to edit the record in this page MobileInfo.aspx Fourth, Image below I thought everything works perfectly because the data has been updated. But... Fifth and last, I went back in PersonalInfo.aspx but it gives me this...Data has been deleted

问题 I have a df with two variables, names and dates. I would like to create a new column (new_dates) which takes the first date belonging to each person (each person should have just one repeated date in this column) and add 30 days to each date as the rows descend. Desired output is below. So row1 for each person holds the original date, row2 holds row1+30, row3 holds row2+30 and so on. dff names dates new_dates 1 john 2010-06-01 2010-06-01 2 john 2010-06-01 2010-07-01 3 john 2010-06-01 2010-07

问题 I have the following 2 tables CREATE TABLE salesperson_t ( salespersonid numeric(4,0) NOT NULL, salespersonname character varying(25), salespersontelephone character varying(50), salespersonfax character varying(50), salespersonaddress character varying(30), salespersoncity character varying(20), salespersonstate character(2), salespersonzip character varying(20), salesterritoryid numeric(4,0), CONSTRAINT salesperson_pk PRIMARY KEY (salespersonid) ); INSERT INTO salesperson_t VALUES (1, 'Doug

问题 I've some problems with my data frame in R. My data frame looks something like this: ID TIME DAY URL_NAME VALUE TIME_SPEND 1 12:15 Monday HOME 4 30 1 13:15 Tuesday CUSTOMERS 5 21 1 15:00 Thursday PLANTS 8 8 1 16:21 Friday MANAGEMENT 1 6 .... So, I want to write the rows, containing the same "ID" into one single row. Looking something like this: ID TIME DAY URL_NAME VALUE TIME_SPEND TIME1 DAY1 URL_NAME1 VALUE1 TIME_SPEND1 TIME2 DAY2 URL_NAME2 VALUE2 TIME_SPEND2 TIME3 DAY3 URL_NAME3 VALUE3 TIME