drop table if exists t1; select length(encrypt('foo', 'ff')) <> 0; length(encrypt('foo', 'ff')) <> 0 1 create table t1 (name varchar(50), pw varchar(64)); insert into t1 values ('tom', password('my_pass')); set @pass='my_pass'; select name from t1 where name='tom' and pw=password(@pass); name tom select name from t1 where name='tom' and pw=password(@undefined); name drop table t1; select password('abc'); password('abc') *0D3CED9BEC10A777AEC23CCC353A8C08A633045E select password(''); password('') select old_password('abc'); old_password('abc') 7cd2b5942be28759 select old_password(''); old_password('') select password('gabbagabbahey'); password('gabbagabbahey') *B0F99D2963660DD7E16B751EC9EE2F17B6A68FA6 select old_password('idkfa'); old_password('idkfa') 5c078dc54ca0fcca select length(password('1')); length(password('1')) 41 select length(encrypt('test')); length(encrypt('test')) 13 select encrypt('test','aa'); encrypt('test','aa') aaqPiZY5xR5l. select old_password(NULL); old_password(NULL) NULL select password(NULL); password(NULL) NULL set global old_passwords=on; select password(''); password('') select old_password(''); old_password('') select password('idkfa'); password('idkfa') *B669C9DAC3AA6F2254B03CDEF8DFDD6B2D1054BA select old_password('idkfa'); old_password('idkfa') 5c078dc54ca0fcca set old_passwords=on; select password('idkfa'); password('idkfa') 5c078dc54ca0fcca select old_password('idkfa'); old_password('idkfa') 5c078dc54ca0fcca set global old_passwords=off; select password('idkfa'); password('idkfa') 5c078dc54ca0fcca select old_password('idkfa'); old_password('idkfa') 5c078dc54ca0fcca set old_passwords=off; select password('idkfa '); password('idkfa ') *2DC31D90647B4C1ABC9231563D2236E96C9A2DB2 select password('idkfa'); password('idkfa') *B669C9DAC3AA6F2254B03CDEF8DFDD6B2D1054BA select password(' idkfa'); password(' idkfa') *12B099E56BB7FE8D43C78FD834A9D1D11178D045 select old_password('idkfa'); old_password('idkfa') 5c078dc54ca0fcca select old_password(' i d k f a '); old_password(' i d k f a ') 5c078dc54ca0fcca explain extended select password('idkfa '), old_password('idkfa'); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1003 select high_priority password(_latin1'idkfa ') AS `password('idkfa ')`,old_password(_latin1'idkfa') AS `old_password('idkfa')`