in reply to Avoid embedding variables in SQL - Dancer App
Your first example only uses one variable in the place.
Your second example uses three placeholders, but you don't want categories.id_cat to be compared as a string.
Placeholders only work for constant values, not for column references. You will need to use string interpolation for that.
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Re^2: Avoid embedding variables in SQL - Dancer App
by GertMT (Hermit) on Sep 05, 2014 at 16:14 UTC