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/*Ö÷ÒªÊÇΪÁË¿´ÇåÁ¬½ÓÂß¼­£¬ËùÒÔ°ÑÒì³£Exception*/
import java.sql.*;
public class TestJDBC {
    public static void main(String[] args) throws Exception {
        ResultSet rs = null;
        Statement stmt = null;
        Connection conn = null;
       
            Class.forName("oracle.jdbc.driver.OracleDriver");//ÒªÒýÈëOracleµÄclass12.jar
            //new oracle.jdbc.driver.OracleDriver();
            conn = DriverManager.getConnection("jdbc:oracle:thin:@192.168.0.1:1521:demo", "scott", "tiger");
            stmt = conn.createStatement();
            rs = stmt.executeQuery("select * from dept");
            while(rs.next()) {
                System.out.println(rs.getString("deptno"));
                System.out.println(rs.getInt("deptno"));
            }
        rs.close();
        stmt.close();
        conn.close();
        }
}


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oracleÖÐsubstrºÍinstrµÄÓ÷¨

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substr("ABCDEFG", 0); //·µ»Ø£ºABCDEFG£¬½ØÈ¡ËùÓÐ×Ö·û
substr("ABCDEFG", 2); //·µ»Ø£ºCDEFG£¬½ØÈ¡´ÓC¿ ......

oracle logical standby ÈÕ³£¹ÜÀí³£ÓõÄһЩÓï¾ä

// Ö´ÐÐÌø¹ý£¬Ìø¹ýµÄ½á¹ûÔÚ
execute dbms_logstdby.skip(stmt => 'DML',schema_name => '%', object_name => '%');
stmtµÄȡֵ¿ÉÒÔÊÇ£º
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// Ìø¹ýµÄÄÚÈݼÇÔØÔÚÏÂÃæ
select * from dba_logstdby_skip
......

Oracle log files

Oracle log files : An introduction
 
The Oracle server maintains the redo Oracle log files to minimize the loss of data in the Database in case of an uncontrolled shutdown.
Online redo Oracle log files are filled with redo records. A redo record, also called a redo entry, is made up of a gr ......

Oracle For Update ÐÐËø


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oracle ½âËøÓû§ÒÔ¼°ÖØÐÂÉèÖÃÓû§ÃÜÂë

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