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  for item in (select * from user_constraints a where a.constraint_type = 'R') loop
  execute immediate 'alter table ' || item.table_name || ' disable constraint ' || item.constraint_name;
  end loop;
end;
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set @strHex = '20'
set @len = len(rtrim(@strHex))
set @i = 1
set @intOut = 0
while @i <= @len
begin
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