Generation method of pre-join table on ring-shaped schema database
A database and pre-connection technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of high query delay in HbaseSQL, high delay in MapReduce, unsupported data rewriting and adding, etc., to optimize the calculation process, The effect of reducing the cost of time and space and accelerating the calculation speed
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[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0033] In this embodiment, to enable mobile phone users to inquire about subscribed book information, a query condition is provided: query the names of mobile phone users who subscribe to the book "The Old Man and the Sea".
[0034] Use the Key-Value database to store mobile phone user information and user subscription book information, as shown in Table 1 and Table 2:
[0035] Table 1 is the mobile phone user information table user
[0036]
[0037] Table 2 is the user subscription book information table orderbook
[0038]
[0039]
[0040] This embodiment adopts the generation method of the pre-connection table on the Key-Value database of the ring structure to realize the connection of Table 1 and Table 2, and its process is as follows figure 1 shown, including the following steps:
[0041] Step 1: For Table 1, hundreds of millions of rows of dat...
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