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Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
...upports it too). For example, you can do
[[ -e $b ]]
to test whether a file exists. But with [, you have to quote $b, because it splits the argument and expands things like "a*" (where [[ takes it literally). That has also to do with how [ can be an external program and receives its argument jus...
Can JavaScript connect with MySQL?
...sk for all the browsers accessing your site to have locally the javascript file that directly accessing your MySQL server?
– Vassilis
Jul 15 '18 at 18:43
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Entity framework code-first null foreign key
...u must make your foreign key nullable:
public class User
{
public int Id { get; set; }
public int? CountryId { get; set; }
public virtual Country Country { get; set; }
}
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IntelliJ: Working on multiple projects
... > Tool Windows > Maven Projects) and then select the additional pom file you want to import.
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Disabling contextual LOB creation as createClob() method threw error
...s metaReportsDDLCausesTxnCommit to be set and it stays false! grepcode.com/file/repo1.maven.org/maven2/org.hibernate/…
– Boris Brodski
Apr 7 '14 at 15:43
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Generate sql insert script from excel worksheet
...porting using one of the methods mentioned is ideal if it truly is a large file, but you can use Excel to create insert statements:
="INSERT INTO table_name VALUES('"&A1&"','"&B1&"','"&C1&"')"
In MS SQL you can use:
SET NOCOUNT ON
To forego showing all the '1 row affect...
Xcode/Simulator: How to run older iOS version?
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The simulator menu has changed in XCode 11.4. It is now File -> Open Device -> (desired OS) -> (desired simulator)
– jameseronious
Apr 1 at 16:41
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Pass all variables from one shell script to another?
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you could also set the variables and values to a file and share them that way
– newshorts
May 27 '18 at 4:13
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bundler vs RVM vs gems vs RubyGems vs gemsets vs system ruby [closed]
...braries are packaged. They are to Ruby what jars are to Java. Inside a gem file, you find Ruby code (.rb files), but also tests, and a special file giving information on the gem itself, such as its name, dependencies and version (gemspec). Any Ruby project can define the gems it needs via a Gemfile ...
Exception NoClassDefFoundError for CacheProvider
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Any other possible ideas? This does not seem to do anything for me. Do the properties need to be changed?
– zod
May 16 '12 at 16:28
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