Hello all,

I have this two tables : table1,table2 . I would like to include all emails from 
table2 into table1 removing duplicates.
 
INSERT INTO table1 (email) SELECT  email from table2 where table1.email <> 
table2.email;

MYSQL says: ERROR 1109: Unknown table 'table1' in where clause

Both tables exist, what's wrong?

TIA

Regards



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