parameters

问题 I have a small powershell script which allows me to quickly set an alarm for myself. It basically just waits a specified number of minutes and then calls msg * alarm! This works well - a message box pops up. The only problem is it disappears after a while - so if I'm not at my desk, I'll miss the message box. According to the documentation, found here, this is the behaviour when I don't specify a time value. /time: seconds : Specifies the amount of time the message you sent is displayed on

问题 I'm new to php and mysql so I need some help with my query. This is my sql query SELECT * FROM table1 WHERE (Name LIKE '%$keyword%' OR ZipCode LIKE '%$keyword%') AND Category LIKE '$category' AND Country LIKE '$country' LIMIT $start, $limit Now what I want to do exaclty is This query should search column names with Name or ZipCode using a text field with the name keyword. That is either keyword matches the Name column or the ZipCode. The query should also work if no keyword is entered and

问题 I have following code snippet that attempts to do a grid search in which one of the grid parameters are the distance metrics to be used for the KNN algorithm. The example below fails if I use "wminkowski", "seuclidean" or "mahalanobis" distances metrics. # Define the parameter values that should be searched k_range = range(1,31) weights = ['uniform' , 'distance'] algos = ['auto', 'ball_tree', 'kd_tree', 'brute'] leaf_sizes = range(10, 60, 10) metrics = ["euclidean", "manhattan", "chebyshev",

问题 I use query: select LAST_LOAD_TIME, ELAPSED_TIME, MODULE, SQL_TEXT elasped from v$sql WHERE MODULE='JDBC Thin Client' ORDER BY LAST_LOAD_TIME DESC elasped: delete from tableA where fk in (select pk from tableB where tableB.fk=:1 and tableB.date between :2 and :3) Is it possible find these parameters 1, 2 and 3? 回答1: Something like this: select s.sql_id, bc.position, bc.value_string, s.last_load_time, bc.last_captured from v$sql s left join v$sql_bind_capture bc on bc.sql_id = s.sql_id and bc

问题 I use query: select LAST_LOAD_TIME, ELAPSED_TIME, MODULE, SQL_TEXT elasped from v$sql WHERE MODULE='JDBC Thin Client' ORDER BY LAST_LOAD_TIME DESC elasped: delete from tableA where fk in (select pk from tableB where tableB.fk=:1 and tableB.date between :2 and :3) Is it possible find these parameters 1, 2 and 3? 回答1: Something like this: select s.sql_id, bc.position, bc.value_string, s.last_load_time, bc.last_captured from v$sql s left join v$sql_bind_capture bc on bc.sql_id = s.sql_id and bc

问题 I did find this question on SO, but it didn't help, really. So, I'd like to pass an array through a hidden field tag. As of now my code is: <%= hidden_field_tag "article_ids", @articles.map(&:id) %> This obviously does not work since it passes the ids as a string. How do i do it? 回答1: Hi maybe there is better solution but you may try <% @articles.map(&:id).each do |id| %> <%= hidden_field_tag "article_ids[]", id %> <% end %> 回答2: The following worked for me on Rails 4.1.10 <% @your_array.map(

问题 I did find this question on SO, but it didn't help, really. So, I'd like to pass an array through a hidden field tag. As of now my code is: <%= hidden_field_tag "article_ids", @articles.map(&:id) %> This obviously does not work since it passes the ids as a string. How do i do it? 回答1: Hi maybe there is better solution but you may try <% @articles.map(&:id).each do |id| %> <%= hidden_field_tag "article_ids[]", id %> <% end %> 回答2: The following worked for me on Rails 4.1.10 <% @your_array.map(

问题 I have a usercontrol which is having one button Usercontrolclass.cs Button click event private void btn_OK_Click(object sender, EventArgs e) { value= Convert.ToDouble(txt_ActualValue.Text); if(getvalue!=null) getvalue(null, new EventArga()); } private variable private int value; property: public double finalvalue { get { return value; } } MainForm.cs I'm using that Usercontrol into this mainform I need to get the value from this class in constructor: Usercontrolclass.getvalue+

问题 If I type the following: public Response GetArticles(string Filter = String.Empty) { //Body } Visual Studio gives me this error: Default parameter value for 'Filter' must be a compile-time constant If I change the String.Empty to the classic "" it is fixed. But I'm still curious about what is wrong with the String.Empty and its behavior. 回答1: Why is String.Empty an invalid default parameter? Because "Default parameter value for 'Filter' must be a compile-time constant". And String.Empty is

问题 I have 'param1, param2, parma3' coming from SSRS to a stored procedure as a varchar parameter: I need to use it in a query's IN clause but then need to change its format like this first: select * from table1 where col1 in('param1', 'param2', 'param3') What is the best way to reformat the parameter without creating functions and parameter tables? 回答1: Try this one, Just need to add commas at the beginning and at the end of @params string. Declare @params varchar(100) Set @params = ',param1