Having a Column name as Input Parameter of a PreparedStatement
No, JDBC does not allow this. Only column values can be set. If you want to make dynamic changes to the sql statement you will have to do it before you create the PreparedStatement.
parameters
Express routes parameters
Basically, your declared routes are documented in the Express documentation. The second route is resolved by a URL like /api/choice/hello where ‘hello’ is mapped into the req object object as: router.get(‘/api/choice/:id’, function (req, res) { console.log(“choice id is ” + req.params.id); }); What you are actually trying is mapping query parameters. A URL like /api/choice/?id=1 … Read more
Passing a parameter via URL to SQL Server Reporting Services
First, be sure to replace Reports/Pages/Report.aspx?ItemPath= with ReportServer?. In other words, instead of this: http://server/Reports/Pages/Report.aspx?ItemPath=/ReportFolder/ReportSubfolder/ReportName Use this syntax: http://server/ReportServer?/ReportFolder/ReportSubfolder/ReportName Parameters can be referenced or displayed in a report using @ParameterName, whether they’re set in the report or in the URL. You can attach parameters to the URL with &ParameterName=Value. To hide the toolbar where parameters … Read more
What is the “String args[]” parameter in the main method?
In Java args contains the supplied command-line arguments as an array of String objects. In other words, if you run your program in your terminal as : C:/ java MyProgram one two then args will contain [“one”, “two”]. If you wanted to output the contents of args, you can just loop through them like this… … Read more
Manipulate multidimensional array in a function
Several things to remember: When you pass an array expression as an argument to a function, it will be converted from an expression of type “N-element array of T” to “pointer to T“, and the value of the expression will be the address of the first element of the array. The called function receives a … Read more
Standard Library Containers with additional optional template parameters?
I found the following issue report, which says There is no ambiguity; the standard is clear as written. Library implementors are not permitted to add template parameters to standard library classes. This does not fall under the “as if” rule, so it would be permitted only if the standard gave explicit license for implementors to … Read more
Passing parameters on button action:@selector
Edit. Found a neater way! One argument that the button can receive is (id)sender. This means you can create a new button, inheriting from UIButton, that allows you to store the other intended arguments. Hopefully these two snippets illustrate what to do. myOwnbutton.argOne = someValue [myOwnbutton addTarget:self action:@selector(buttonTouchUpInside:) forControlEvents:UIControlEventTouchUpInside]; and – (IBAction) buttonTouchUpInside:(id)sender { MyOwnButton … Read more
What is the difference between a const reference and normal parameter?
The important difference is that when passing by const reference, no new object is created. In the function body, the parameter is effectively an alias for the object passed in. Because the reference is a const reference the function body cannot directly change the value of that object. This has a similar property to passing … Read more
What is the point of having two different names for the same parameter?
inArray is external name which the caller of the function should use when passing parameters. arr is the internal name which the function implementer uses in the implementation to refer to the parameter. You don’t have to supply external name.It makes it more readable. It is more like to make swift function names and parameters … Read more
Query for getting value from another record in same table and filter by difference greater than a gap threshold
Will offer one more contribution – option with VBA code to get the Current/Previous pairs. This does require saving records to table. Tested and runs in a snap. Sub GetGap() Dim intTH As Integer, x As Integer, strGID As String Dim rsT1 As DAO.Recordset, rsT2 As DAO.Recordset CurrentDb.Execute “DELETE FROM Temp” Set rsT1 = CurrentDb.OpenRecordset(“SELECT … Read more