More than 2.6 million companies have LinkedIn Pages, in order to establish a strong ________ presence

Consider the following interleaving of transactions T and U:

The outcome of optimistic concurrency control with backward validation is that T will be aborted because its read operation conflicts with U's write operation on ai, although the interleavings are serially equivalent. Suggest a modification to the algorithm that deals with such cases.

Each time a color sampler is ____________________, the remaining samplers are automatically renumbered.

Fill in the blank(s) with the appropriate word(s).