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Performing Breadth First Search recursively
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(I'm assuming that this is just some kind of thought exercise, or even a trick homework/interview question, but I suppose I could imagine some bizarre scenario where you're not allowed any heap space for some reason [some really bad custom memory...
Fastest Way of Inserting in Entity Framework
...example 100 records.
Call SaveChanges() after for example 100 records and dispose the context and create a new one.
Disable change detection
For bulk inserts I am working and experimenting with a pattern like this:
using (TransactionScope scope = new TransactionScope())
{
MyDbContext context ...
PDO mysql: How to know if insert was successful
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PDOStatement->execute() returns true on success. There is also PDOStatement->errorCode() which you can check for errors.
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How do I check if the mouse is over an element in jQuery?
Is there a quick & easy way to do this in jQuery that I'm missing?
24 Answers
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How to set a default entity property value with Hibernate
...inition = "int default 100")
Notice that the string in columnDefinition is database dependent. Also if you choose this option, you have to use dynamic-insert, so Hibernate doesn't include columns with null values on insert. Otherwise talking about default is irrelevant.
But if you don't want dat...
Which is faster: multiple single INSERTs or one multiple-row INSERT?
.../8.0/en/insert-optimization.html
The time required for inserting a row is determined by the following factors, where the numbers indicate approximate proportions:
Connecting: (3)
Sending query to server: (2)
Parsing query: (2)
Inserting row: (1 × size of row)
Inserting indexes: ...
How to find patterns across multiple lines using grep?
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Grep is not sufficient for this operation.
pcregrep which is found in most of the modern Linux systems can be used as
pcregrep -M 'abc.*(\n|.)*efg' test.txt
where -M, --multiline allow patterns to match more than one line
T...
How to initialize const member variable in a class?
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The const variable specifies whether a variable is modifiable or not. The constant value assigned will be used each time the variable is referenced. The value assigned cannot be modified during program execution.
Bjarne Stroustrup's explanation sums it up briefly:
A c...
Why doesn't JavaScript support multithreading?
Is it a deliberate design decision or a problem with our current day browsers which will be rectified in the coming versions?
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SQLAlchemy: print the actual query
...ding values, rather than bind parameters, but it's not obvious how to do this in SQLAlchemy (by design, I'm fairly sure).
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