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Can I protect against SQL injection by escaping single-quote and surrounding user input with single-
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First of all, it's just bad practice. Input validation is always necessary, but it's also always iffy.
Worse yet, blacklist validation is always problematic, it's much better to explicitly and strictly define what values/formats you a...
Automate ssh-keygen -t rsa so it does not ask for a passphrase
...ing prompted for a passphrase you can do the following:
$ ssh-keygen -f id_rsa -t rsa -N ''
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How to set a default value for an existing column
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MSSQL is weird for calling default values "constraints". If anything, they are relaxations; the opposite of a constraint! They make more things valid, not fewer.
– Roman Starkov
May 11 '13 at 12:06
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SQL Case Sensitive String Compare
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Select * from a_table where attribute = 'k' COLLATE Latin1_General_CS_AS
Did the trick.
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How do I install from a local cache with pip?
I install a lot of the same packages in different virtualenv environments. Is there a way that I can download a package once and then have pip install from a local cache?
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How to grep a text file which contains some binary data?
... Yes, except that this won't work on OSX unless you do the following: LC_ALL="C" grep -a
– Chris Stratton
Feb 10 '19 at 18:05
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How can I drop all the tables in a PostgreSQL database?
How can I drop all tables in PostgreSQL, working from the command line?
24 Answers
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SQL query to get all values a enum can have
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The unnest call will return records of type myenum with a column name of "myenum". You might also want to cast the enum to text and specify a column name by adding something like. ::text AS my_column
– Justin Oh...
Map enum in JPA with fixed values?
I'm looking for the different ways to map an enum using JPA. I especially want to set the integer value of each enum entry and to save only the integer value.
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Xcode without Storyboard and ARC
...gWithOptions: (NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
TestViewController *test = [[TestViewController alloc] initWithNibName:@"TestViewController" bundle...