In databases, query processing is the mark able task under which join operation processing is the expensive operation that join two relations, occurring in the database system. In this paper the testing of the effectiveness of join algorithms has been proposed. In join operation between relations it is required to use those algorithms which take less time to process the join query efficiently in the database system. There are many algorithms are proposed previously for performing join operation. In this paper, a test has been proposed and based on the results of this test finding of the better algorithm among the join algorithm is presented by taking join processing time into consideration as the factor for comparing the join algorithms. It means that the analysis of the effective algorithm has been made based on the factor that which algorithms requires less time to join two relation. This test has been proposed by making block nested loop join algorithm to work on the tuples of the relations under join condition.
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