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Why is it faster to check if dictionary contains the key, rather than catch the exception in case it
... every iteration matters very little for performance. Compare 1st and 2nd table: codeproject.com/Articles/11265/…
– Dan Is Fiddling By Firelight
Apr 19 '13 at 21:12
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How to use MySQL DECIMAL?
...1 to 99.9999 like you asked you would need the following statement
CREATE TABLE your_table
(
your_column DECIMAL(6,4) NOT NULL
);
The column definition follows the format DECIMAL(M, D) where M is the maximum number of digits (the precision) and D is the number of digits to the right of the de...
Compare DATETIME and DATE ignoring time portion
I have two tables where column [date] is type of DATETIME2(0) .
5 Answers
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Case statement with multiple values in each 'when' block
...ars
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end
Another common approach would be to use a hash as a dispatch table, with keys for each value of car and values that are some callable object encapsulating the code you wish to execute.
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What is a Windows Handle?
...ndle invalidates the pointer. In this case think of it as an index into a table of pointers... you use the index for the system API calls, and the system can change the pointer in the table at will.
Alternatively a real pointer may be given as the handle when the API writer intends that the user o...
Difference between Hashing a Password and Encrypting it
...rrence of collisions. You can attack a secure hash by the use of a rainbow table, which you can counteract by applying a salt to the hash before storing it.
Encrypting is a proper (two way) function. It's reversible, you can decrypt the mangled string to get original string if you have the key.
Th...
SortedList, SortedDictionary and Dictionary
...e original question, it should be noted that if you choose between the Immutable versions of these dictionaries, that the Sorted versions are often actually faster by some 40-50% than the non-sorted counterparts (still O(log(n)), but noticeably faster per op). The timings may differ depending on how...
What is the meaning of the CascadeType.ALL for a @ManyToOne JPA association
... to the persistence provider that the join column should be in the ADDRESS table.
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Display string as html in asp.net mvc view
...ripped out, with just the non-tag content remaining. I particularly had a table with a missing opening table tag, and then all my html tags from the entire string where ripped out completely.
So, if the above doesn't work, and you're still scratching your head, then also check you html for being v...
MySQL ERROR 1045 (28000): Access denied for user 'bill'@'localhost' (using password: YES)
... When a client attempts to connect, the server looks through the rows [of table mysql.user] in sorted order.
The server uses the first row that matches the client host name and user name.
(...)
The server uses sorting rules that order rows with the most-specific Host values first.
Lit...