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Select statement to find duplicates on certain fields
...
You mention "the first one", so I assume that you have some kind of ordering on your data. Let's assume that your data is ordered by some field ID.
This SQL should get you the duplicate entries except for the first one. It basically selects all ro...
How do arrays in C# partially implement IList?
...[]).GetInterfaces())
{
Console.WriteLine(type);
}
Output:
System.ICloneable
System.Collections.IList
System.Collections.ICollection
System.Collections.IEnumerable
System.Collections.IStructuralComparable
System.Collections.IStructuralEquatable
System.Collections.Generic.IList`1[System.Int32]
...
How to bind to a PasswordBox in MVVM
...ttern so I wish to bypass this. I found some interesting code here (has anyone used this or something similar?)
31 Answers
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When should we implement Serializable interface?
...inal
object(s). The basic mechanisms are to
flatten object(s) into a
one-dimensional stream of bits, and to
turn that stream of bits back into the
original object(s).
Like the Transporter on Star Trek,
it's all about taking something
complicated and turning it into a flat
sequen...
How to duplicate a whole line in Vim?
... users maps Y to y$. (Consistent with D and C; (but not Vi compatible (no one cares.))) That is even proposed in :help Y.
– Aaron Thoma
Jan 19 '14 at 2:48
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Remove duplicate dict in list in Python
... dictionaries from tuples with dict.
where:
l is the original list
d is one of the dictionaries in the list
t is one of the tuples created from a dictionary
Edit: If you want to preserve ordering, the one-liner above won't work since set won't do that. However, with a few lines of code, you can...
Delete empty lines using sed
...evaluates 0 to False and no line is printed; however, if there is at least one field, the evaluation is True and makes awk perform its default action: print the current line.
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improve this an...
`testl` eax against eax?
...e that edit, and only noticed afterwards. I just looked at this after someone bumped it, and what started as a small edit snowballed into too much. No offence taken that you wanted to roll it back; it was just a suggestion and it definitely reads like my work, not yours. I'll take some of what I ...
How do I get SUM function in MySQL to return '0' if no values are found?
.../www.sqlfiddle.com/#!2/d1542/3/0
More Information:
Given three tables (one with all numbers, one with all nulls, and one with a mixture):
SQL Fiddle
MySQL 5.5.32 Schema Setup:
CREATE TABLE foo
(
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
val INT
);
INSERT INTO foo (val) VALUES
(nul...
How to disable all div content
...").addClass("disabledbutton");
CSS
.disabledbutton {
pointer-events: none;
opacity: 0.4;
}
Supplement:
Many commented like these: "This will only disallow mouse events, but the control is still enabled" and "you can still navigate by keyboard". You Could add this code to your script and in...