If either string is of datatype VARCHAR2, the result has datatype VARCHAR2 and is limited to 4000 characters. Trailing blanks in character strings are preserved by concatenation, regardless of the strings' datatypes. On most platforms, the concatenation operator is two solid vertical bars, as shown in Table 3-3. However, some IBM platforms use broken vertical bars for this operator.
George Marks/Retrofile/Getty Images. If a thunderstorm is rolling in, your chances of being struck by lightning are one in 600,000, but this risk is elevated if you take a shower or bath, wash laundry or dishes, or even clean your hands in the sink during the storm.
1 You might also want to find something to do while under ice bath therapy. You could bring a running book or a magazine with you.  Take a warm bath or shower around 30 minutes to an hour later. Muscles, along with the tissues, have a tendency to become stiff and tense in extreme cold.