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What is the ideal data type to use when storing latitude / longitude in a MySQL database?
...and how the FLOAT specification works: FLOAT(10,6) leaves 4 digits for the integer part of the coordinate. And no, the sign doesn't count - that comes from the (un)signed attribute.
– Alix Axel
May 9 '13 at 9:54
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How to create an array for JSON using PHP?
...est way that you should go every time for creating json in php is to first convert values in ASSOCIATIVE array.
After that just simply encode using json_encode($associativeArray). I think it is the best way to create json in php because whenever we are fetching result form sql query in php most of ...
Get index of selected option with jQuery
... @Joan.bdm jquery does not have selectedIndex property. Adding [0] converts the jquery object to a javascript object which has the selectedIndex property. This example won't work without [0]
– Aram
May 21 '14 at 23:28
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Hidden Features of Java
...ls beyond just locks, they live in java.util.concurrent and a specifically interesting example is the java.util.concurrent.atomic subpackage that contains thread-safe primitives that implement the compare-and-swap operation and can map to actual native hardware-supported versions of these operations...
undefined reference to `WinMain@16'
...g Windows API-level program:
#define NOMINMAX
#include <windows.h>
int main()
{
MessageBox( 0, "Blah blah...", "My Windows app!", MB_SETFOREGROUND );
}
Now let's build it using GNU toolchain (i.e. g++), no special options. Here gnuc is just a batch file that I use for that. It only sup...
MongoDb query condition on comparing 2 fields
...ct matches between dates in queries. One workaround is using .getTime() to convert to milliseconds or whatever: this.startDate.getTime() == ISODate("2017-01-20T10:55:08.000Z").getTime()
– leinaD_natipaC
Oct 1 '19 at 10:28
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Serializing with Jackson (JSON) - getting “No serializer found”?
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I am getting this error while converting ClientResponse to string using object mapper
– VdeX
May 24 '17 at 14:03
3
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Formatting numbers (decimal places, thousands separators, etc) with CSS
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I like it. But I needed to also convert the number to a string before the replace. You can not do a replace on a number.
– Mardok
May 27 '16 at 18:47
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Alter Table Add Column Syntax
...loyeeID numeric NOT NULL IDENTITY (1, 1)
ALTER TABLE Employees ADD CONSTRAINT
PK_Employees PRIMARY KEY CLUSTERED
(
EmployeeID
) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF,
ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
...
How can I define a composite primary key in SQL?
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CREATE TABLE `voting` (
`QuestionID` int(10) unsigned NOT NULL,
`MemberId` int(10) unsigned NOT NULL,
`vote` int(10) unsigned NOT NULL,
PRIMARY KEY (`QuestionID`,`MemberId`)
);
s...