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How to debug PDO database queries?
Before moving to PDO, I created SQL queries in PHP by concatenating strings. If I got database syntax error, I could just echo the final SQL query string, try it myself on the database, and tweak it until I fixed the error, then put that back into the code.
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Get the current displaying UIViewController on the screen in AppDelegate.m
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@Mingming it shouldn't be that hard to add an extra if to check if its the custom container VC (in the getVisibielController method) and if so return the "visible" controller, which would typically be vc.childControllers.lastObject for most custom container VC implementa...
PostgreSQL Connection URL
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My issue was to simply copying the "jdbc:postgres:// ..." string out of DataGrip. Unfortunately the error message did not help. Thank you!
– barfoos
Jun 13 '19 at 18:07
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Rails 4: List of available datatypes
...:date
:datetime
:decimal
:float
:integer
:bigint
:primary_key
:references
:string
:text
:time
:timestamp
Source: http://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/SchemaStatements.html#method-i-add_column
These are the same as with Rails 3.
If you use PostgreSQL, you can also tak...
phantomjs not waiting for “full” page load
...ascript condition that evaluates to a boolean,
* it can be passed in as a string (e.g.: "1 == 1" or "$('#bar').is(':visible')" or
* as a callback function.
* @param onReady what to do when testFx condition is fulfilled,
* it can be passed in as a string (e.g.: "1 == 1" or "$('#bar').is(':visible...
SET NOCOUNT ON usage
... not have SET NOCOUNT OFF; and that is why they think they are not getting extra bytes in response. Accurate benchmark would be to use SET NOCOUNT ON in left and SET NOCOUNT OFF in right stored procedure. This way you will get TDS package with DONEINPROC (SET NOCOUNT ...), ten again DONEINPROC (INS...
How do I determine whether an array contains a particular value in Java?
I have a String[] with values like so:
29 Answers
29
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Making a UITableView scroll when text field is selected
... above the keyboard whenever the textfields become the first responder. No extra code needed.
– Sam Ho
Sep 23 '10 at 5:03
3
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Returning IEnumerable vs. IQueryable
...nt. (stackoverflow.com/questions/12064828/… c++ though I thought I could extrapolate this)
– Viking
Feb 1 '18 at 7:27
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How to print the ld(linker) search path
...and:
ld --verbose | grep SEARCH_DIR | tr -s ' ;' \\012
gcc passes a few extra -L paths to the linker, which you can list with the following command:
gcc -print-search-dirs | sed '/^lib/b 1;d;:1;s,/[^/.][^/]*/\.\./,/,;t 1;s,:[^=]*=,:;,;s,;,; ,g' | tr \; \\012
The answers suggesting to use ld.s...