Steve, I want to make sure I understand. My test code is below, where
ph serves as a placeholder. I am preparing for a case where the number
of ? will be driven by the length of the insert record (dx)
dtable= 'DTABLE3'
print 'Insert data into table %s, version #3' % dtable
ph= '?, ?, ?, ?'
sqlx=
> (B) is better than (A). The parameter binding employed in (B)
> is not only faster on many databases, but more secure.
See, for example,http://informixdb.blogspot.com/2007/07/filling-in-
blanks.html
Thx. The link was helpful, and I think I have read similar things
before-- that B is faster.
So
I hav read on this forum that SQL coding (A) below is preferred over
(B), but I find (B) is much faster (20-40% faster)
(A)
sqla= 'INSERT INTO DTABLE1 VALUES (%d, %d, %d, %f)' % values
curs.execute(sqla)
(B)
pf= '?, ?, ?, ?'
sqlxb= 'INSERT INTO DTABLE2 VALUES ( %s ) ' % pf
