Hi List, regarding the foreign key definitions:
[CONSTRAINT symbol] FOREIGN KEY (index_col_name, ...)
REFERENCES table_name (index_col_name, ...)
[ON DELETE {CASCADE | SET NULL | NO ACTION
| RESTRICT}]
[ON UPDATE {CASCADE | SET NULL | NO ACTION
| RESTRICT}]
Is there a default action for ON DELETE and ON UPDATE if no action
is specified in the database definition?
I presume RESTRICT makes it impossible to delete a record from
the parent table if there are any references from a child record to
the parent for that key?
The MySQL documentation on the web does not seem to say
anything about this...
Best regards,
Tor Rune Skoglund
[EMAIL PROTECTED]
sql query
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