JDBC语句可以在查询字符串上运行解释计划吗？

Question

JDBC语句可以在查询字符串上运行解释计划吗？

该代码引发SQL异常错误消息：关键字'plan'附近的语法不正确。

conn = getEntityManager().unwrap(java.sql.Connection.class);
stmt = conn.createStatement();         
stmt.execute("explain plan for SELECT 1"); // throws sql exception
rs = stmt.executeQuery("select plan_table_output from table(dbms_xplan.display())");
while (rs.next()) 
{
  System.out.println(rs.getString(1));
}

Answer 1

您尝试过：stmt.execute("EXPLAIN PLAN FOR SELECT 1 FROM DUAL");