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quick random row selection in Postgres
... make It sense to use a N less than SELECT COUNT(*)?, I mean, not use all the values in the table but only a part of them?
– Juan
Mar 14 '11 at 11:00
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Best data type to store money values in MySQL
I want to store many records in a MySQL database. All of them contains money values. But I don't know how many digits will be inserted for each one.
Which data type do I have to use for this purpose?
VARCHAR or INT (or other numeric data types)?
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Uncatchable ChuckNorrisException
...d not find the main class: TestThrow. Program will exit.
UPDATE 2:
Actually, you can get this to work if you disable the byte code verifier! (-Xverify:none)
UPDATE 3:
For those following from home, here is the full script:
Create the following classes:
public class ChuckNorrisException
e...
What is the proper way to check for null values?
...ast because I think it's likely to surface errors faster. It also avoids calling ToString() on a string object.
– tvanfosson
Mar 20 '12 at 19:17
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SQLite with encryption/password protection
...MyDatabase.sqlite;Version=3;Password=password;");
conn.Open();
This wont allow any GUI editor to view Your data.
Later if you wish to change the password, use conn.ChangePassword("new_password");
To reset or remove password, use conn.ChangePassword(String.Empty);
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What represents a double in sql server?
...appear to be 100% compatible in their binary representation of both very small and very large numbers -- see https://dotnetfiddle.net/wLX5Ox for my test).
To make things more confusing, a "float" in C# is only 32-bit, so it would be more equivalent in SQL to the real/float(24) type in MSSQL than fl...
The first day of the current month in php using date_modify as DateTime object
... This is IMO by far the simplest and most readable way to solve this, if all you need is a string representation of the date.
– Markus Amalthea Magnuson
Aug 17 '12 at 11:23
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Can you have a within a ?
...sert a Flash object into my page. The embedding eats my span . So, I lose all my CSS for it. I was thinking of moving all of the CSS to the parent so I don't lose my CSS styles when the Flash appears.
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Query an XDocument for elements by name at any depth
...he above code would result in an NPE. Maybe the .? from the new C# will finally make it valid
– Dror Harari
Sep 19 '15 at 0:43
3
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Read-only list or unmodifiable list in .NET 4.0
...that's not a List, it's a Collection. So if you use it, you need to modify all your code to use Collection instead of List.
– Roman Zabicki
May 25 '16 at 13:50
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