cursor

问题 I am building a script to store some data in a database. First time I'm using PostgeSQL and everything goes well and as planned. I was thinking about the usage of the Cursor in PostgreSQl and what if I am making a lot of them while one is enough. But I don't want to pass the cursor to all my SQL functions. Here's my simplified example. dbConn, dbCurs = openDataBase(config) doSomeThing(dbCurs, name, age, listOfJohns) def doSomething(dbCurs, name, age, listOfPoeple): listOfPoeple

问题 I am using input type text box with pre populated values and when I click on the input box the position of the cursor is moving to the start which is not happening in other browsers(only IE11 is the issue present). It's very annoying and spent hours debugging . In fact debugging in IE is very pain. Please note I do not want to manipulate the DOM and we are not suppose to use Jquery anymore in our application. I am using react Js as UI framework. It would be great if someone give some hint on

问题 My query is regarding the creation of the function parameters for getting data from the database. I want the cursor to returns only specific rows instead of complete recordset. c= getContentResolver().query(uri, null, "column1=? \"mysearch\" or column2=? "\mysearch"\", null, "date DESC"); I want to get the results where column1 like "mysearch" or column2 like "mysearch" . In the above example i have tried with some hardcoded values. Regards, Nirav 回答1: Got it after some workaround. The

问题 using C#; I'm trying to make an application using a Leap Motion sensor to map finger movements to cursor movement. On the screen, I would like to draw a circle around the cursor. After some searching I found someone trying to do the same thing (Leap Motion excluded) Want a drawn circle to follow my mouse in C#. The code presented there: private void drawCircle(int x, int y) { Pen skyBluePen = new Pen(Brushes.DeepSkyBlue); Graphics graphics = CreateGraphics(); graphics.DrawEllipse( skyBluePen,

问题 I want to print current time (by using printf) in same place, but i want to do it in infinite loop eg: while(1) {printf("Date and Time are %s", asctime(localtime(&current))); } . So before i use printf i should move cursor backward to its staring position. How to do it ? thx in advance 回答1: For simply moving the cursor to the beginning of the current line, you may print "\r", which does just that. Notice that it does not erase the old text, so be careful to either overwrite it or to clear

问题 This question already has answers here : Android Kotlin: Getting a FileNotFoundException with filename chosen from file picker? (3 answers) Android - Get real path of a .txt file selected from the file explorer (1 answer) Closed 5 days ago . I am adding my source codes. If possible add your source code(File Uploading) to help me. OnActivityResult : try { // When an file is picked if (requestCode == 3 && resultCode == RESULT_OK && null != data) { // Get the file from data // String path = data

问题 I have the data in pandas dataframe which I am storing in SQLITE database using Python. When I am trying to query the tables inside it, I am able to get the results but without the column names. Can someone please guide me. sql_query = """Select date(report_date), insertion_order_id, sum(impressions), sum(clicks), (sum(clicks)+0.0)/sum(impressions)*100 as CTR from RawDailySummaries Group By report_date, insertion_order_id Having report_date like '2014-08-12%' """ cursor.execute(sql_query)

问题 I have the data in pandas dataframe which I am storing in SQLITE database using Python. When I am trying to query the tables inside it, I am able to get the results but without the column names. Can someone please guide me. sql_query = """Select date(report_date), insertion_order_id, sum(impressions), sum(clicks), (sum(clicks)+0.0)/sum(impressions)*100 as CTR from RawDailySummaries Group By report_date, insertion_order_id Having report_date like '2014-08-12%' """ cursor.execute(sql_query)

问题 I want to have the user press a button to kick off a background thread. While the thread is processing, I want two things to happen: 1) A WAIT_CURSOR should be displayed. 2) The application should not respond to mouse events. As per the setCursor documentation "This cursor image is displayed when the contains method for this component returns true for the current cursor location, and this Component is visible, displayable, and enabled. ". I want my application to be disabled while this

问题 I want to have the user press a button to kick off a background thread. While the thread is processing, I want two things to happen: 1) A WAIT_CURSOR should be displayed. 2) The application should not respond to mouse events. As per the setCursor documentation "This cursor image is displayed when the contains method for this component returns true for the current cursor location, and this Component is visible, displayable, and enabled. ". I want my application to be disabled while this