what are aggregate functions and list the
What are aggregate functions? And list the aggregate functions supported by SQL?
Aggregate functions are functions that take a collection of values as input and return a one value.
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list the string operations supported by sql1 pattern matching operation2 concatenation3 extracting character strings4 converting among uppercase and
list the set operations of sql1 union2 intersect operation3 the except
what is the use of union and intersection operationunion the result of this operation contains all tuples that are either in r1 or in r2 or in both
q how are the major classes of arthropods classified according to the presence of larval stage in their embryonic developmentin crustaceans there are
what are aggregate functions and list the aggregate functions supported by sqlaggregate functions are functions that take a collection of values as
q what are imago and nymphnymphs are larvae of hemimetabolic insects like grasshoppers they are very similar to the adult insect although smaller in
q is the stage when an insect larva is within a cocoon a stage of total biological inactivitythe period when the larva is inside its cocoon is a time
q how are the three major arthropod classes characterized according to the presence of wingsarachnids and crustaceans do not have wings most insects
q most insects have wings which is the other animal phylum that contains creatures with analogous organsbesides the phylum arthropoda another animal
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