Thank you for your help first , you don't say, i also understand in this time...
the SQL result is in hexadecimal notation, the VB.NET in decimal.

sql and vb.net result different....

But the two method result is display :
010000007AE387A2F926CBFC67790A3BA715C148B9A3B8A057564008076C0865716527B1


So if i want to use DECRYPTBYPASSPHRASE function....
I need store the result and add the 0x....
After the result is
0x010000007AE387A2F926CBFC67790A3BA715C148B9A3B8A057564008076C0865716527B1......

that is OK la, i can use the DECRYPTBYPASSPHRASE function