print 0 | 1 | 2 | 4 | 8
print 15 & 0
print 15 & 1
print 15 & 2
print 15 & 4
print 15 & 8
print 15 & 0
print 15 & 1
print 15 & 2
print 15 & 4
print 15 & 8
SELECT bitand(15, 8) from dual;
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