KwickClips Databases and SQL · 35 sec · free
How do you confirm an UPDATE?
Short answer. SELECT the row with the same WHERE.
Why SELECT before changing?
To see which rows the WHERE matches.
Remember
| SELECT before the change |
| SELECT again after it |
Your update ran. But did it change the right row? Run select with the same where. Aman shows eighty, so the change worked. Select before the change. Select again after it.
This clip is from the full lesson: SQL Data Manipulation: INSERT, UPDATE and DELETE — 5 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 9 Computer Applications (165), CBSE Class 9 Computer Applications (165), CBSE Class 9 Computer Applications (165), CBSE Class 9 Information Technology (402)
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