Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

JDBC ¼òµ¥µÄMysqlÁ¬½Ó

/*ÑÝʾһ¸öJDBC³ÌÐò£¬´ÓMysqlµÄLMDÊý¾Ý¿âÖжÁ³ö±íadminµÄÒ»¸öÐÅÏ¢*/
import java.sql.*;
public class TestMysqlConnection {
    public static void main(String[] args) {
        Connection conn = null;
        Statement stmt = null;
        ResultSet rs = null;
        try {
            Class.forName("com.mysql.jdbc.Driver");
            conn = DriverManager
                    .getConnection("jdbc:mysql://localhost/LMD?user=root&password=root");
            stmt = conn.createStatement();
            rs = stmt.executeQuery("select * from admin");
            while (rs.next()) {
                System.out.println(rs.getString("Name"));
            }
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (SQLException ex) {
            // handle any errors
            System.out.println("SQLException: " + ex.getMessage());
            System.out.println("SQLState: " + ex.getSQLState());
            System.out.println("VendorError: " + ex.getErrorCode());
        } finally {
     &nb


Ïà¹ØÎĵµ£º

OracleºÍMySQLÊý¾Ý¿âµÄһЩ¼òµ¥ÃüÁî¶Ô±È

ÒÔÏÂΪOracleºÍMySQLÊý¾Ý¿âµÄһЩ¼òµ¥ÃüÁî¶Ô±È£¬¿´¿´ËüÃÇÖ®¼ä´æÔÚÄÄЩ²îÒì
¡¡¡¡SQL> select to_char(sysdate,'yyyy-mm-dd') from dual;
¡¡¡¡SQL> select to_char(sysdate,'hh24-mi-ss') from dual;
¡¡¡¡mysql> select date_format(now(),'%Y-%m-%d');
¡¡¡¡mysql> select time_format(now(),'%H-%i-%S');
¡¡¡¡ÈÕÆÚº ......

²é¿´MySQL¼Ç¼ִÐйýµÄSQL

µÚÒ»ÖÖ:²éSlow queryµÄSQLÓï·¨:
 
log_slow_queries = /var/log/mysql/mysql-slow.log
long_query_time = 2 (³¬¹ý2ÃëµÄSQLÓï·¨¼Ç¼ÆðÀ´,Éè¶ÌÒ»µãÀ´¼Ç¼³ý´íÒ²ÊÇÒ»ÖÖ·½·¨.)
 
µÚ¶þÖÖ:ÉèMySQL ReplicationÓÃbinlog:
 
log_bin = /var/log/mysql/mysql-bin.log (´ËµµÒªÓÃmysqlbinlog½âÀ´¿´£¬
mysqlbinl ......

ͨ¹ýSAS fastload Mysql table µ½ Teradata

/*clear fastload tables*/
%let gdw_dir =( user="XXXXX" password="XXXXX" database="XXXXX" tdpid="XXXXX");
proc sql;
connect to teradata as TD &gdw_dir;
execute (drop table STG_MYSQL_lkp_verticals)
by TD;
execute (commit) ......

MysqlµÄÔ¶³ÌµÇ¼


ysqlĬÈÏÊDz»ÔÊÐíÔ¶³ÌÁ¬½ÓµÄ£¬ÒòΪÓкܴóµÄ°²È«Òþ»¼¡£
¡¡¡¡ÐèÒªÊÖ¶¯Ôö¼Ó¿ÉÒÔÔ¶³Ì·ÃÎÊÊý¾Ý¿âµÄÓû§¡£
¡¡¡¡·½·¨Ò»¡¢±¾µØµÇÈëmysql£¬¸ü¸Ä "mysql" Êý¾Ý¿âÀïµÄ "user" ±íÀïµÄ "host" Ï½«"localhost"¸ÄΪ"%"
#mysql -u root -proot
mysql>use mysql;
mysql>update user set host = '%' where user = 'root';
my ......

»ùÓÚMySQLºÍInfobrightµÄÊý¾Ý²Ö¿â¼¼Êõ

»ùÓÚMySQLºÍInfobrightµÄÊý¾Ý²Ö¿â¼¼Êõ
Êý¾Ý²Ö¿â/·ÖÎö/ÉÌÎñÖÇÄÜ( BI )ÁìÓòÕýÔÚ·ÉËÙ·¢Õ¹¡£ÔÚ¼¤Áҵľ­¼Ã¾ºÕùÖÐËùÓÐÐÐÒµºÍÖÇÄÜÆóÒµÐèÒªÀûÓÃÆäÄÚ²¿µÄÊý¾ÝÀ´×ö³öÖØÒªµÄÉÌÒµ¾ö²ß£¬°üÀ¨Õ½ÊõºÍÕ½ÂÔÁ½·½Ã棬ÒÔ±£³ÖÐÐÒµµÄÁìÏȵØÎ»¡£
Êý¾Ý²Ö¿â(Èç¶ÔMySQLµÄÒ»´ÎÖØ´óÉç»áºÍ¿Í»§µ÷²é)ĿǰÊÇMySQLµÄµÚÎåÖÖ×î³£¼ûµÄÓ¦Óá£ÏÖÔÚÓÃÓÚMySQLÊý¾Ý ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ