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What is the purpose of “&&” in a shell command?
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&& strings commands together. Successive commands only execute if preceding ones succeed.
Similarly, || will allow the successive command to execute if the preceding fails.
See Bash Shell Programming.
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Postgresql query between date ranges
...-01]'::daterange @> login_date
this should be more efficient than the string comparison
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SQL Server reports 'Invalid column name', but the column is present and the query works through mana
... to the SQL Server instance you think you are.
Double check your connect strings and ensure that they explicitly specify the SQL Server instance name and the database name.
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Best Practice for Exception Handling in a Windows Forms Application?
...) per thread
Generic Exceptions caught should be published
Log Exception.ToString(); never log only Exception.Message!
Don't catch (Exception) more than once per thread
Don't ever swallow exceptions
Cleanup code should be put in finally blocks
Use "using" everywhere
Don't return special values on er...
Attach IntelliJ IDEA debugger to a running Java process
...onfused me that you edit the inputs below and these then update the option strings above (in 13.1 CE, at least.)
– Carl G
May 28 '14 at 17:08
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How do I set the value property in AngularJS' ng-options?
...t allows you to use any type of object as value in option rather than only strings. You should never try to get the value of the select the other way around you just need to use ngModel you attached to select element.
– Umur Kontacı
Jan 31 '13 at 6:48
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Format Date time in AngularJS
...em, but thought I'd throw in another option to consider.
As the original string doesn't include the "T" demarker, the default implementation in Angular doesn't recognize it as a date. You can force it using new Date, but that is a bit of a pain on an array. Since you can pipe filters together, you...
How to implement a many-to-many relationship in PostgreSQL?
...cally cheaper with a 4-byte integer (or even an 8-byte bigint) than with a string stored as text or varchar.
Don't use names of basic data types like date as identifiers. While this is possible, it is bad style and leads to confusing errors and error messages. Use legal, lower case, unquoted identi...
How to escape double quotes in a title attribute
I am trying to use a string that contains double quotes in the title attribute of an anchor. So far I tried these:
8 Answer...
How do I prevent an Android device from going to sleep programmatically?
...il you do:
echo mylockname >/sys/power/wake_unlock
With the same string for 'mylockname'.
Note that this will not prevent the screen from going black, but it will prevent the CPU from sleeping.
Note that /sys/power/wake_lock is read-write for user radio (1001) and group system (1000), an...