Question: What are native connections? How are they different from ODBC connections? What are the advantages and disadvantages of native connections?
Evan Levy's Answer: There are core functions that every database supports to allow users (and applications) to query data. Some of these functions include database connection, the actual query dialect or SQL, query submission processing and answer result formatting. In the early days, if a tool wanted to log on and connect to a database server, the tool needed to understand the specific API calls and parameters supported by each individual database product. The APIs that exist to support access to SQL Server, Oracle or DB2 are entirely different. Additionally, each database product has their own unique version (or enhancements) to SQL as well as their own way of representing result data (like binary, floating point and other nonstandard data types).
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