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H2 in-memory database. Table not found
...By default, closing the last connection to a database closes the database. For an in-memory database, this means the content is lost. To keep the database open, add ;DB_CLOSE_DELAY=-1 to the database URL. To keep the content of an in-memory database as long as the virtual machine is alive, use jdbc:...
Determine the number of NA values in a column
...
Thank you for this. To expand this a little bit. In counting amount of arbitrary value, other than NA is writing a boolean function is.value and then using sum(is.value(df$col)) the way to go or is there a more concise direct syntax f...
Different floating point result with optimization enabled - compiler bug?
...keep more
precision than a "double" is supposed to have. Similarly for the
x86 architecture. For most programs, the excess precision does
only good, but a few programs rely on the precise definition of
IEEE floating point. Use -ffloat-store for such programs, after
...
UnmodifiableMap (Java Collections) vs ImmutableMap (Google) [duplicate]
...ugh the unmodifiable map. The unmodifiable map only prevents modifications for those who only have the reference to the unmodifiable view:
Map<String, String> realMap = new HashMap<String, String>();
realMap.put("A", "B");
Map<String, String> unmodifiableMap = Collections.unmodif...
How do I obtain a Query Execution Plan in SQL Server?
In Microsoft SQL Server how can I get a query execution plan for a query / stored procedure?
12 Answers
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How to display HTML tags as plain text [duplicate]
I have an input form on my website where HTML is allowed and I'm trying to add instructions about the use of HTML tags. I'd like the text to
...
UITableViewCell Separator disappearing in iOS7
...:
Objective-C:
- (void)layoutSubviews {
[super layoutSubviews];
for (UIView *subview in self.contentView.superview.subviews) {
if ([NSStringFromClass(subview.class) hasSuffix:@"SeparatorView"]) {
subview.hidden = NO;
}
}
}
Swift:
override func layoutSubv...
Use Mockito to mock some methods but not others
...s is called a partial mock. See the Mockito documentation on partial mocks for more information.
For your example, you can do something like the following, in your test:
Stock stock = mock(Stock.class);
when(stock.getPrice()).thenReturn(100.00); // Mock implementation
when(stock.getQuantity())....
I can't install python-ldap
...
Thanks for that. It's got further it's now failing with sasl.h no such file or directory
– VacuumTube
Jan 22 '11 at 14:57
...
How to Store Historical Data
... I got into a debate on the best way to store historical data. Currently, for some systems, I use a separate table to store historical data, and I keep an original table for the current, active record. So, let's say I have table FOO. Under my system, all active records will go in FOO, and all his...