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Multi-statement Table Valued Function vs Inline Table Valued Function
...ing the entire contents of your SELECT statement into a table variable and then joining to that. Thus, the compiler cannot use any table statistics on the tables in the MSTVF. So, all things being equal, (which they rarely are), the ITVF will perform better than the MSTVF. In my tests, the performan...
push_back vs emplace_back
...nsert() function of a std::map, you have to create a temporary, which will then be copied into a std::pair<Key, Value>, which will then be copied into the map :
std::map<int, Complicated> m;
int anInt = 4;
double aDouble = 5.0;
std::string aString = "C++";
// cross your finger so that...
What is data oriented design?
...Point position;
Color color;
double radius;
void draw();
};
And then you would create a collection of balls like this:
vector<Ball> balls;
Data Oriented Approach
In Data Oriented Design, however, you are more likely to write the code like this:
class Balls {
vector<Point&g...
Can jQuery read/write cookies to a browser?
...since you have to split strings and stuff. If you're already using JQuery, then the cookie plugin could be nice...... An annoying thing about reading cookies is that some browsers remove the final semicolon and some don't.... nice to have someone else handle all that.
– Peter A...
How do I iterate over a JSON structure? [duplicate]
...However if anybody have a JSON object he can convert it to a JS object and then use your method. To convert a JSON object to JS object use jsObject = JSON.parse(jsonObject);
– prageeth
Oct 31 '14 at 4:48
...
jQuery get selected option value (not the text, but the attribute 'value')
...cted old answer
Use :selected psuedo selector on the selected options and then use the .val function to get the value of the option.
$('select[name=selector] option').filter(':selected').val()
Side note: Using filter is better then using :selected selector directly in the first query.
If inside...
Django rest framework, use different serializers in the same ModelViewSet
...y_action:
...
If there's no entry for that action then just fallback to the regular
get_serializer_class lookup: self.serializer_class, DefaultSerializer.
"""
try:
return self.serializer_action_classes[self.action]
except (KeyErro...
How can I extract embedded fonts from a PDF as valid font files?
... editor FontForge:
Use the "Open Font" dialogbox used when opening files.
Then select "Extract from PDF" in the filter section of dialog.
Select the PDF file with the font to be extracted.
A "Pick a font" dialogbox opens -- select here which font to open.
Check the FontForge manual. You may need t...
How to get primary key column in Oracle?
... table_name** **= ‘TABLE_NAME’ ;
(This will list the primary key and then)
Select column_name,position from user_cons_cloumns where constraint_name=’PK_XYZ’;
(This will give you the column, here PK_XYZ is the primay key name)
...
How to get a value from a cell of a dataframe?
...
If you have a DataFrame with only one row, then access the first (only) row as a Series using iloc, and then the value using the column name:
In [3]: sub_df
Out[3]:
A B
2 -0.133653 -0.030854
In [4]: sub_df.iloc[0]
Out[4]:
A -0.133653
B -0.03085...