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How to check if a Constraint exists in Sql server?
... queries for that:
--Returns one row for each CHECK, UNIQUE, PRIMARY KEY, and/or FOREIGN KEY
SELECT *
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS
WHERE CONSTRAINT_NAME='XYZ'
--Returns one row for each FOREIGN KEY constrain
SELECT *
FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS
...
What does 'wb' mean in this code, using Python?
...
File mode, write and binary. Since you are writing a .jpg file, it looks fine.
But if you supposed to read that jpg file you need to use 'rb'
More info
On Windows, 'b' appended to the mode
opens the file in binary mode, so
there ar...
how can I Update top 100 records in sql server
...e the top 100 records in SQL Server. I have a table T1 with fields F1 and F2 . T1 has 200 records. I want to update the F1 field in the top 100 records. How can I update based on TOP 100 in SQL Server?
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HTML inside Twitter Bootstrap popover
...since it belongs to <a href="#" that's why it wasn't working, change it and it's all good.
Here is working JSFiddle which shows you how to create bootstrap popover.
Relevant parts of the code is below:
HTML:
<!--
Note: Popover content is read from "data-content" and "title" tags.
-->
<a...
Why would one declare a Java interface method as abstract?
...va Language Specification, the abstract keyword for interfaces is obsolete and should no longer be used. (Section 9.1.1.1)
That said, with Java's propensity for backwards compatibility, I really doubt it will ever make a difference whether the abstract keyword is present.
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How do I create a comma-separated list from an array in PHP?
I know how to loop through items of an array using foreach and append a comma, but it's always a pain having to take off the final comma. Is there an easy PHP way of doing it?
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Detect enter press in JTextField
...r while typing in a JTextField in java? Without having to create a button and set it as the default.
10 Answers
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Efficient way to rotate a list in python
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A collections.deque is optimized for pulling and pushing on both ends. They even have a dedicated rotate() method.
from collections import deque
items = deque([1, 2])
items.append(3) # deque == [1, 2, 3]
items.rotate(1) # The deque is now: [3, 1, 2]
item...
Can attributes be added dynamically in C#?
...utes are static metadata. Assemblies, modules, types, members, parameters, and return values aren't first-class objects in C# (e.g., the System.Type class is merely a reflected representation of a type). You can get an instance of an attribute for a type and change the properties if they're writable...
How to interactively (visually) resolve conflicts in SourceTree / git
...m using (Windows) SourceTree for my git project. I can do it in either command prompt or Linux terminal.
3 Answers
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