trigger new row join other table
Posted by:
Jingtan Li
Date: January 08, 2014 03:30AM
table_a
country_id
country_GDP
table_b
province_id
province_GDP
table_c
country_id
province_id
I want make a trigger in table_b,if province_GDP changed, country_GDP in table_a will change.
the problem is :
I don't know how to join the table_c to the new row.
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trigger new row join other table
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January 08, 2014 03:30AM
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