Julian questions

Julian answers

• what does + sign after variable mean?
• The difference between int a[5] and int (&a)[5] in template parameter deduction
• Storing Lat Lng values in MySQL using Spatial Point Type
• Postgresql SQL GROUP BY time interval with arbitrary accuracy (down to milli seconds)
• Changing the file name of a tmp file uploaded through a form
• Qt5 Using QWidget with QtQuick2