wmnotify Create
序列是一種資料庫物件，它能夠跟據某些法則來產生一些整數，最常見的用途就是用來產生某個表的主鍵 SQL> create SEQUENCE serial START WITH 1; //创建序列号 SQL> create table test_wang(a number(4),b varchar2(16));// 创建表格 SQL> insert into test_wang (a,b) values(serial.NEXTVAL,'chinaren'); // 插入 SQL> select serial.NEXTVAL from dual;// 当前序列号的值＋1； SQL> select serial.CURRVAL from dual; //当前序列...
by wzplove - Java文档中心 - 2005-09-26 17:07:56 阅读（789） 回复（0）
I wish to know how I going to know am I create a correct index? Can any provide some examples for creating a proper index? THANKS...
请问create trigger创建的是什么？ 下面的sql是做什么的？谢谢 create trigger "cbps".tu_rev_rec update of rev_status,ac_rev_amnt on "cbps".rev_rec referencing old as old_upd new as new_upd for each row ( execute procedure "cbps".pu_rev_rec(old_upd.i_info_appl_branch ,old_upd.i_info_date ,old_upd.i_info_appl_no ,old_upd.rev_item_code ,old_upd.rev_status ,new_upd....
我把并发量提到600的时候就报错，不是数据库连接限制问题，我设置的是1500个连接 [ 本帖最后由 justlooks 于 2009-9-2 14:22 编辑 ]
mysql> create table shop (article int(4) unsigned zerofill default '0000' not null, dealer char(20) default '' not null, price double(16,2) default '0.00' not null, primary key(article, dealer)); Query OK, 0 rows affected (0.04 sec) 本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u3/101226/showart_2004718.html
mysqlslap -uroot -p12345678 --debug-info --auto-generate-sql --auto-generate-sql-load-type=mixed -h 192.168.1.169 -P 3307 --concurrency=305 --number-of-queries=1000 --create-schema=t1 mysqlslap: Could not create thread 有人碰到这个问题么，并发数最大就是304了，数字再大就抱这个错，我测试了好几台mysql都是一样
1.Assign a disk from diskarry to cluster 2.init the disk vxdisksetup -i disk_name 3. create a diskgroup vxdg init diskgroup disk_name=device_tag eg: # vxdg init datadg datadg01=Disk_1 4.create a volume vxassist -g diskgroup make volume_name length [attributes] eg: # vxassist -g datadg make datavol 10g 5. create fs mkfs -F vxfs volumename eg: # mkfs -F vxfs /dev/vx/rdsk/datadg/datavol 6. mount disk...
create solaris flash archive 首先创建一个文件系统用于存放flash文件: [root@node01 /]mkdir /u01 [root@node01 /]newfs /dev/dsk/c0t1d0s0 newfs: construct a new file system /dev/rdsk/c0t1d0s0: (y/n)? y Warning: 5810 sector(s) in last cylinder unallocated /dev/rdsk/c0t1d0s0: 143358286 sectors in 23334 cylinders of 48 tracks, 128 sectors 69999.2MB in 1459 cyl groups (16 c/g, 48.00MB/g, 5824...
