KwickClips Python · 40 sec · free
Why does one value need a comma in (m,)?
Short answer. Without the comma it is not a tuple.
Which is safer for text values?
%s placeholders, because format pastes the value straight into the query.
Remember
| %s: pass a tuple, (m,) |
| {}: use .format(m) |
The user types the marks. How does the query get them? Percent s is a blank a tuple fills. Note the comma. Format fills curly brackets. Percent s is safer; format only pastes text. Percent s needs a tuple. Curly brackets use format.
This clip is from the full lesson: Connecting Python with MySQL — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 12 Computer Science (083)
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