Abstract: This paper analyzed the deficiencies of the existing database’s access patterns such as the tight coupling and self-enclosing, discussed the design principles and the advantages and disadvantages of the existing cross-platform database data sharing schemes, a four-layer service-oriented cross-platform database data sharing scheme was proposed. The scheme’s architectural design was introduced, the functions of the four layers were discussed in detail, and the cross-platform data exchange with business systems was illustrated too, the scheme was achieved and verified in a comparison test with a common cross-platform database data sharing scheme. The unique data service layer of the scheme not only solves the tight coupling between databases and business systems, achieves database cross-platform data sharing, but also improves the efficiency of data conversion, reduces the volume of data, and improves data sharing efficiency.
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Key words: database, cross-platform, data sharing, service-oriented, four-layer