python中的sqlite3连接器

Question

This doesn't work: I don't get any element.

k0 is float numpy, dk is int:

(k0, dk)
(<class 'numpy.float64'>, <class 'int'>)
(20.083143869749225, 6)

-

get_close_rods = "select xmid, ymid, angle from datos where  experiment_id=? "
get_close_rods+= "and file_id=? and ymid between ? and ? and xmid between ? and ? and angle between ? and ? "
get_close_rods+= "and major/minor between ? and ? order by ((xmid-?)*(xmid-?)+(ymid-?)*(ymid-?))*angle" 
#get_close_rods+= "order by ((xmid-?)*(xmid-?)+(ymid-?)*(ymid-?))*angle"

args = (str(experiment_id_), str(file_ids[index+1]), str(pos0[1]-dd),
            str(pos0[1]+dd), str(pos0[0]-dd), str(pos0[0]+dd),
            str(angle-dangle), str(angle+dangle), str(k0-dk), str(k0+dk),
            str(pos0[0]), str(pos0[0]), str(pos0[1]), str(pos0[1]))

cursor2.execute(get_close_rods, args)

str(k0-dk), str(k0+dk)

It doesn't work either:

get_close_rods = "select xmid, ymid, angle, from datos where  experiment_id=? "
get_close_rods+= "and file_id=? and ymid between ? and ? and xmid between ? and ? and angle between ? and ? "
get_close_rods+= "and major/minor between ? and ? order by ((xmid-?)*(xmid-?)+(ymid-?)*(ymid-?))*angle" 
#get_close_rods+= "order by ((xmid-?)*(xmid-?)+(ymid-?)*(ymid-?))*angle"

args = (str(experiment_id_), str(file_ids[index+1]), str(pos0[1]-dd),
            str(pos0[1]+dd), str(pos0[0]-dd), str(pos0[0]+dd),
            str(angle-dangle), str(angle+dangle), str(15), str(25),
            str(pos0[0]), str(pos0[0]), str(pos0[1]), str(pos0[1]))

cursor2.execute(get_close_rods, args)

str(15), str(25)

Doesn't work either if I put str(float(15)), str(float(25)) .

It doesn't show any error when I use that query.

But this works:

get_close_rods = "select xmid, ymid, angle, from datos where  experiment_id=? "
get_close_rods+= "and file_id=? and ymid between ? and ? and xmid between ? and ? and angle between ? and ? "
#get_close_rods+= "and major/minor between ? and ? order by ((xmid-?)*(xmid-?)+(ymid-?)*(ymid-?))*angle" 
#get_close_rods+= "order by ((xmid-?)*(xmid-?)+(ymid-?)*(ymid-?))*angle"
get_close_rods+= "and major/minor between 15 and 25 order by ((xmid-?)*(xmid-?)+(ymid-?)*(ymid-?))*angle"

args = (str(experiment_id_), str(file_ids[index+1]), str(pos0[1]-dd),
            str(pos0[1]+dd), str(pos0[0]-dd), str(pos0[0]+dd),
            str(angle-dangle), str(angle+dangle), #str(15), str(25),
            str(pos0[0]), str(pos0[0]), str(pos0[1]), str(pos0[1]))

cursor2.execute(get_close_rods, args) 

#str(15), str(25)

Answer 1

Using directly values fixed it:

args = (..., 15, 25, ...)

or:

args = (..., k0-dk, k0+dk, ...)