Test to See if Your Connection is Alive : Connection « Database « Java Tutorial

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Java Tutorial » Database » Connection 
20. 3. 5. Test to See if Your Connection is Alive
  1. For Oracle database: you may use the Connection object with query of "select 1 from dual"; if the query returns the result, then it is a valid Connection object.
  2. For MySQL database: you may use the Connection object with query of "select 1"; if the query returns the result, then it is a valid Connection object.
20. 3. Connection
20. 3. 1. Connection Object
20. 3. 2. Connection Object Requirements
20. 3. 3. Connection Properties: Pass additional properties using java.util.Properties:
20. 3. 4. Passing 'user' and 'password' Parameters as a java.util.Properties Object to Connection object
20. 3. 5. Test to See if Your Connection is Alive
20. 3. 6. Vendor URL Formats
20. 3. 7. Connection's Method to Print Native SQL
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