The Oracle (tm) Users' Co-Operative FAQ
I have a column with a default value, but I keep finding it set to NULL - what's going wrong ?.
| Author's name: Sergey M Author's Email: bigwizard@mail.ru |
Date written: 25th Oct 2001 Oracle version(s): 7 - 8.1.7 |
| I have a column with a default value, but I keep finding it set to NULL - what's going wrong ? |
Because a default value is used only for insertion into a table, but you may update the value of column to NULL
Further reading: N/A
最后修改时间：2020-04-16 15:12:43
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