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SELECT INTO Variable in MySQL DECLARE causes syntax error?
... a stored procedure causes those results to ALSO be sent back in the resultset. That can be confusing. To using the SELECT...INTO syntax with multiple variables you do:
SELECT a, b INTO @a, @b FROM mytable LIMIT 1;
The SELECT must return only 1 row, hence LIMIT 1, although that isn't always neces...
What's the difference between Application.ThreadException and AppDomain.CurrentDomain.UnhandledExcep
...ot a great idea btw.
You can disable this behavior by calling Application.SetUnhandledExceptionMode() in the Main() method in Program.cs. Without that backstop in place, the usual thing happens when a thread dies from an unhandled exception: AppDomain.UnhandledException fires and the program termi...
JavaScript OOP in NodeJS: how?
... do something like inherits(Mouse, Animal); that cleans up the inheritance set up a bit. The difference is that you are creating new function identity for each instantiated object instead of sharing one function. If you have 10 mice, you have created 10 function identities (that is only because mous...
Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
...when printing the timezone to the screen. At display time, the data is offset appropriately and +01:00 (or similar) is added to the string. Stripping off the tz_info value (using tz_convert(tz=None)) doesn't doesn't actually change the data that represents the naive part of the timestamp.
So, t...
Add leading zeroes/0's to existing Excel values to certain length
...se ; as the parameter separator, which it takes from your Windows language settings.
– GSerg
Jul 17 '15 at 13:58
...
EF Code First “Invalid column name 'Discriminator'” but no inheritance
...the derived class.
Example:
class Person
{
public string Name { get; set; }
}
[NotMapped]
class PersonViewModel : Person
{
public bool UpdateProfile { get; set; }
}
Now, even if you map the Person class to the Person table on the database, a "Discriminator" column will not be created be...
What is the use of ByteBuffer in Java? [closed]
...ot affect the position.
bbuf.put(0, (byte)0xFF); // position=0
// Set the position
bbuf.position(5);
// Use the relative put(byte)
bbuf.put((byte)0xFF);
// Get the new position
int pos = bbuf.position(); // 6
// Get remaining byte count
int rem = bbuf.remainin...
Alter a MySQL column to be AUTO_INCREMENT
...y key error while doing this operations, so I have this is what I do: SET FOREIGN_KEY_CHECKS = 0; ALTER TABLE document DROP PRIMARY KEY; ALTER TABLE document MODIFY COLUMN document_id INT PRIMARY KEY AUTO_INCREMENT NOT NULL; SET FOREIGN_KEY_CHECKS = 1;
– F...
How to locate a file in Solution Explorer in Visual Studio 2010?
...
This settings causes that project and solution nodes are constantly expanded as I open files. After 15 minutes of working on bigger project, I have so many nodes expanded that solution explorer becomes unsuable. DPack solution is ...
How to use the IEqualityComparer
...<T> where T : class
{
private Func<T, object> _expr { get; set; }
public GenericCompare(Func<T, object> expr)
{
this._expr = expr;
}
public bool Equals(T x, T y)
{
var first = _expr.Invoke(x);
var sec = _expr.Invoke(y);
if (fi...