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/**
*
* ˵Ã÷£º
* £¨1£©±¾ÀýʹÓÃJDBC_ODBCÇŽøÐÐÊý¾Ý¿âÁ¬½Ó£¬¹Ê´ËÐèÒªODBCÊý¾ÝÔ´
* £¨2£©±¾ÀýÖÐSQLΪ¸üÐÂÓï¾ä£¬¹Ê´ËʹÓÃÔØÌåµÄexecuteUpdate·½·¨£¬²¢ÇÒ·µ»ØÊÜÓ°Ïì¼Ç¼Êý
* (3) ÅäÖÃÁ¬½ÓORACLEµÄodbcÊý¾ÝÔ´ora
*/
//µ¼ÈëËùÐèÀà°ü
import java.sql.*;
public class JdbcTestOra2 {
public static void main(String args[]) {
    try {
      //×°ÔØÇý¶¯³ÌÐò
      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     
      //½¨Á¢Êý¾Ý¿âÁ¬½Ó
      Connection con =
DriverManager.getConnection("jdbc:odbc:ora","scott","tiger");
     
      //´´½¨SQLÓï¾äÔØÌå
      Statement st = con.createStatement();
     
      //Ö´ÐÐSQLÓï¾ä£¬½ÓÊÕÖ´Ðнá¹û
      int rs = st.executeUpdate("update emp set
comm=1000");
           
      //´¦Àí½á¹û
      System.out.println("Ð޸ļǼÊý£º"+rs);
     
      //ÊÍ·ÅÊý¾Ý¿â×ÊÔ´£¬×¢Òâ˳Ðò
      st.close();
      con.close();           
    }
    catch (Exception e) {
      e.printStackTrace(System


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15. /*+USE_CONCAT*/
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select /*+use_concat */ * from emp where deptno=10 OR empno=7788;
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 update usertable u set u.grade =
 (select g.grade from grade g where g.userid = u.userid);
 
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select rownum, t.* from sm_t_pad_new t
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