row

问题 I'm writing my first Python file which basically grabs some webdata and saves to a .csv file (and working, see below). The data structure is consistent but has a header consisting of some 17 rows. I want to import the csv into SQL, but its having trouble with the header data, even if I tell it to start reading from row 18 etc it can't see the data unless I manually delete rows 1-17. I'm thinking the easiest option would be to simply delete rows 1-17 as part of my Python code below. But I have

问题 I need to make trigger that transfers rows from table to another table with same name rows when row data value checked is 1 so it is checked to be moved. This should happen when something is inserted or altered. Any ideas? 回答1: A MySQL error 1442: Error Code: 1442. Can't update table 'xyz' in stored function/trigger because it is already used by statement which invoked this stored function/trigger. Will occur in cases of cascading or recursive like trigger calls due to the server knowing it

问题 My SQL query (in Oracle 11g) returns a column like this: 31132,11100,44232 25464,89453,15686 21561,68547,51612 I want to order these cells, I mean: 11100,31132,44232 15686,25464,89453 21561,51612,68547 How can I do this? Thanks in advance! 回答1: You can use REGEXP_SUBSTR to pull out the individual numbers from each row, and then use LISTAGG to rejoin them in the desired order -- something like the below: WITH T (N) AS --TEST DATA (SELECT '31132,11100,44232' FROM DUAL UNION SELECT '25464,89453

问题 I have a grid that contains an action column for each row. This action column is an edit icon, and when a user clicks the edit icon, I'm kicking off some websocket events, which will eventually trickle down to other users currently connected to the app. What I want to do is grey out this edit icon for the other users. All of that code is working except: I have no idea how I can access the actual row's action column object. I can access it by using the grid's view and grabbing that individual

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . My problem is I want to show the details of a user profile that I have on my database. For some reason, it keeps giving me errors of 'Undefined variable: row'. Also, I can show the user Username and UserID using this code. (HTML CODE) So I'm not really sure what's missing or if I did something wrong. Hope that

问题 I am looking for a workaround to an issue in Bokeh. When you put a button and a text input in a row- they will be un-alighned. This effect happens because the text input has a label and is described here: https://github.com/bokeh/bokeh/issues/4817 screenshot of messed up alignment Example code: # hello.py from bokeh.io import curdoc from bokeh.layouts import column, row from bokeh.models.widgets import TextInput, Button, Paragraph # create some widgets button = Button(label="Say HI") input =

问题 I tried to loop through my dataGridView1 and remove rows which don't satisfy the condition as following: foreach (DataGridViewRow row in dataGridView1.Rows) { if (!(Convert.ToDateTime(row.Cells[7].Value) - DateTime.Today).Days <= 0) { dataGridView1.Rows.Remove(row); //error: Uncommitted new row cannot be deleted. } } But I got this error: Uncommitted new row cannot be deleted. I can manage if the code also VB.NET. 回答1: Don't use foreach in this case, the looped collection may be modified and

问题 I have a php and mysql script, where I want to create different results based on the values found in mysql table. I compare te value in the horas array to the value of my hora variable of the row. If it this same I do something else, it does other. However my doubt is, in the if, when the condition is true how do I change to the next row? $con = db_connect(); $result = mysqli_query($con,"SELECT * FROM projetor WHERE data = '$mydate' AND hora = '$hora'"); $horas=array("a","b","c","d","e","f",

问题 I have a set of .csv files with known number of columns that contains NA as entry as well as values. I would like to get the maximum value of each row and then calculate the average of all the max values. Input file: "V1","V2","V3" 10,15,20 20,NA,5 NA,NA,NA 10,5,6 回答1: Maximum values: # Display 0 for NA rows awk -F, 'NR>1{a=0;for(i=1;i<=NF;i++)if($i>a&&$i!="NA")a=$i;print a}' file 20 20 0 10 # Display nothing for NA rows awk -F, 'NR>1&&/[0-9]/{a=0;for(i=1;i<=NF;i++)if($i>a&&$i!="NA")a=$i

问题 I have the following query: $sql = "SET @rownum := 0; SELECT * FROM ( SELECT @rownum := @rownum + 1 AS rank, totalpoints, useridFB, username FROM user_test ORDER BY totalpoints DESC ) as result WHERE useridFB=".$uid.""; With it I'm getting the rank of a user that has earned points by playing some games in my web. The query works great when I paste it in phpMyAdmin, I get the correct rank for the user. What's the problem then? Well, I cannot display any data stored in the result. I've tried