KwickClips Python · 41 sec · free
What does fetchone() return when no rows are left?
Short answer. None.
Does rowcount take brackets?
No. It is a property, not a method.
Fetch methods
| Call | Gives | rowcount |
|---|---|---|
| fetchone() | 1 tuple | 1 |
| fetchmany(2) | next 2 | 3 |
| fetchall() | the rest | 4 |
Remember
| Each fetch continues |
| rowcount has no brackets |
Your query found four rows. How do you read them? Fetchone gives one row. Fetchmany of two gives the next two. Fetchall gives the rest. Rowcount counts them. Remember two things. Each fetch continues. Rowcount has no brackets.
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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