Discussion
How many JDBC driver types does Sun define?
Answer: D
Correct answer: Four
Sun defines four types. Type 1 is the JDBC-ODBC bridge; Type 2 calls the DBMS’s own native API through a client library; Type 3 talks to a middleware server in a network protocol; and Type 4 is pure Java speaking the DBMS protocol directly. The numbering runs from most dependent on native code to least.
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