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

sql in תΪexists

-- MySQL dump 10.10
--
-- Host: localhost Database: test
-- ------------------------------------------------------
-- Server version 5.0.22-community-nt
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
--
-- Table structure for table `student`
--
DROP TABLE IF EXISTS `student`;
CREATE TABLE `student` (
`id` int(11) default NULL,
`t_id` int(11) default NULL,
`name` varchar(255) default NULL
) ENGINE=InnoDB DEFAULT CHARSET=gbk;
--
-- Dumping data for table `student`
--
/*!40000 ALTER TABLE `student` DISABLE KEYS */;
LOCK TABLES `student` WRITE;
INSERT INTO `student` VALUES (1,1,'s1'),(2,1,'s2'),(3,1,'s3'),(4,2,'s44'),(5,2,'s55'),(6,2,'s6');
UNLOCK TABLES;
/*!40000 ALTER TABLE `student` ENABLE KEYS */;
--
-- Table structure for table `teacher`
--
DROP TABLE IF EXISTS `teacher`;
CREATE TABLE `teacher` (
`id` int(11) default NULL,
`name` varchar(255) default NULL
) ENGINE=InnoDB DEFAULT CHARSET=gbk;
--
-- Dumping data for table `teacher`
--
/*!40000 ALTER TABLE `teacher` DISABLE KEYS */;
LOCK TABLES `teacher` WRITE;
INSERT INTO `teacher` VALUES (1,'t1'),(2,'t2'),(3,'t3');
UNLOCK TABLES;
/*!40000 ALTER TABLE `teacher` ENABLE KEYS */;
/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET


Ïà¹ØÎĵµ£º

[ת]Oracle,sql serverµÄ¿ÕÖµ(null)ÅжÏ


sql server
Ìæ»»null:isnull(arg,value)
Èç:select isnull(price,0.0) from orders                             ,Èç¹ûpriceΪnullµÄ»°£¬ÓÃ0 ......

MS SQL Êý¾Ý¿â±¸·ÝºÍ»¹Ô­µÄ¼¸ÖÖ·½·¨


Ò»¡¢Í¨¹ýÆóÒµ¹ÜÀíÆ÷½øÐе¥¸öÊý¾Ý¿â±¸·Ý¡£´ò¿ªSQL SERVER ÆóÒµ¹ÜÀíÆ÷£¬Õ¹¿ªSQL SERVER×éLOCALϵÄÊý¾Ý¿â£¬ÓÒ¼üµã»÷ÄãÒª±¸·ÝµÄÊý¾Ý¿â£¬ÔÚµ¯³öµÄ²Ëµ¥ÖÐÑ¡ÔñËùÓÐÈÎÎñϵı¸·ÝÊý¾Ý¿â£¬µ¯³ö±¸·ÝÊý¾Ý¿â¶Ô»°¿ò£º
µã»÷Ìí¼Ó°´Å¥£¬Ìîд±¸·ÝÎļþµÄ·¾¶ºÍÎļþÃû£¬µã»÷È·¶¨Ìí¼Ó±¸·ÝÎļþ£¬µã»÷±¸·Ý¶Ô»°¿òÉϵı¸·Ý£¬¿ªÊ¼½øÐб¸·Ý¡£
&nbs ......

[SQL Server2008]SQL Server ÖÐ.Óë::µÄÇø±ð(ת)

SQL ServerÖе÷Ó÷½·¨Ê±£¬¾­³£Óöµ½.»òÊÇ::Á½ÖÖµ÷Ó÷½·¨£¬ÆäÖÐ. ÊÇʵÀýµ÷Ó÷½·¨£¬::ÊǾ²Ì¬µ÷Ó÷½·¨¡£Èç¹û´ó¼Ò¶ÔC#Óï·¨ÊìϤµÄ»°£¬. ¶ÔÓ¦C#Öе÷ÓÃʵÀý·½·¨£¬:: ¶ÔÓ¦C#ÖеÄstatic·½·¨¡£
ÏÂÃæ¸ø³öÒ»¸öSQL ServerµÄʵÀý£¬ÏÂÃæµÄSQLÔËÐÐÔÚ2008»·¾³Ï£º
DECLARE @g geography;
SET @g = geography::Parse('LINESTRING(-122.360 ......

MySQL 5.5 m2 VS MS Sql Server 2000 SE BenchMark

×÷Õߣº°½Ê¿Î°
·þÎñÆ÷£ºIBM X346
CPU:Intel Xeon 3.0 *4
Äڴ棺2GB
Ó²ÅÌ£ºRAID5
OS£ºwin2003 SE
Ò»¡¢MySQL 5.5 M2
MySQL ĬÈÏÒýÇæInnoDB£¬ÓÅ»¯Ç°ºó¼¸ºõÎÞ²î±ð
¶þ¡¢SQL SERVER 2000 SE
     ´ÓÕâû´Î²âÊÔ¿´£¬MysqlÔÚÊÂÎñÐÔÄܱíÏÖ²»ÈçSQL SERVER¡£Í¬Ê±£¬Á½ÕßÔÚĬÈÏÇé¿ö£¬ÅúÁ¿Insert£¬Mysql±íÏ ......

SQL SERVERÁÙʱ±íµÄʹÓÃ


drop table #Tmp   --ɾ³ýÁÙʱ±í#Tmp
create table #Tmp --´´½¨ÁÙʱ±í#Tmp
(
    ID   int IDENTITY (1,1)     not null, --´´½¨ÁÐID,²¢ÇÒÿ´ÎÐÂÔöÒ»Ìõ¼Ç¼¾Í»á¼Ó1
    WokNo          &n ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ