Exporting data from sqlite to numpy array

Question

I\'m not a programmer, I do this purely as a hobby..

I found a way to save numpy array in to sqlite database

import sqlite3
import numpy

# Array of          


        

Answer 1

Just fetch all the values. That gives you a list of tuples. np.array() takes you back to the original array:

In [12]: cursor.execute('SELECT * from data')
Out[12]: <sqlite3.Cursor at 0xaf8e9d60>
In [13]: alist = cursor.fetchall()
In [14]: len(alist)
Out[14]: 100
In [15]: alist[0]
Out[15]: 
(0.3327498114993416,
 0.6164620040846208,
 0.5099007559772143,
 0.7808234554641948)
In [16]: data1 = np.array(alist)
In [17]: np.allclose(data, data1)
Out[17]: True

The fact that it's a list of tuples doesn't matter. It's just as good as a list of lists.