Sql Serverµ¼³öÎı¾Îļþ
ÏÈ¿ªÆô·þÎñÆ÷ÅäÖÃÑ¡Ï
EXEC sp_configure 'show advanced options', 1
RECONFIGURE
EXEC sp_configure 'xp_cmdshell', 1
RECONFIGURE
/** µ¼³öÎı¾Îļþ
EXEC master..xp_cmdshell 'bcp dbname..tablename out c:\DT.txt -c -S servername -U sa -P password'
»ò
EXEC master..xp_cmdshell 'bcp "Select * from dbname..tablename" queryout c:\DT.txt -c -S servername -U sa -P password'
µ¼³öµ½TXTÎı¾£¬ÓöººÅ·Ö¿ª
exec master..xp_cmdshell 'bcp "¿âÃû..±íÃû" out "d:\tt.txt" -c -t ,-U sa -P password'
BULK INSERT ¿âÃû..±íÃû
from 'c:\test.txt'
WITH (
FIELDTERMINATOR = ';',
ROWTERMINATOR = '\n'
)
Ïà¹ØÎĵµ£º
Êý¾Ý¿âÔÚͨ¹ýÁ¬½ÓÁ½ÕÅ»ò¶àÕűíÀ´·µ»Ø¼Ç¼ʱ£¬¶¼»áÉú³ÉÒ»ÕÅÖмäµÄÁÙʱ±í£¬È»ºóÔÙ½«ÕâÕÅÁÙʱ±í·µ»Ø¸øÓû§¡£
ÔÚʹÓÃleft jionʱ£¬onºÍwhereÌõ¼þµÄÇø±ðÈçÏ£º
1¡¢onÌõ¼þÊÇÔÚÉú³ÉÁÙʱ±íʱʹÓõÄÌõ¼þ£¬Ëü²»¹ÜonÖеÄÌõ¼þÊÇ·ñÎªÕæ£¬¶¼»á·µ»Ø×ó±ß±íÖеļǼ¡£
2¡¢whereÌõ¼þÊÇÔÚÁÙʱ±íÉú³ÉºÃºó£¬ÔÙ¶ÔÁÙʱ±í½øÐйýÂ˵ÄÌõ¼þ¡£ÕâʱÒÑ ......
sqlÖ®left join¡¢right join¡¢inner joinµÄÇø±ð
×òÌìÃæÊÔ8Ò³±ÊÊÔÌâÄ¿,»ù±¾É϶¼ÊÇSQl µÄ,ÌØ±ðÊÇÕ⼸¸öÇø±ð,¼ÇµÃ²»ÊǺÜÇåÎú,Ö»¼ÇµÃleftÊÇÒÔ×ó±íΪÖ÷±í,
rightÒÔÓÒ±íΪÖ÷±í,µ¼ÖÂ×ö´íÁ˼¸¸ö!½ñÌìËÑÁËÏÂ!×ÜËãŪÇå³þÁË!ÒÔÏÂÊÇתÌû!
left join(×óÁª½Ó) ·µ»Ø°üÀ¨×ó±íÖеÄËùÓмǼºÍÓÒ±íÖÐÁª½á×Ö¶ÎÏàµÈµÄ¼Ç¼
right j ......
ÍøÕ¾£ºhttp://werysoft.com/
Èç¹ûÄú±ØÐë¹ÜÀí»·¾³ÖеĶàÖÖÀàÐ͵ÄÊý¾Ý¿â·þÎñÆ÷£¬ÔòʹÓü¯ÖÐʽ¹¤¾ßµ÷ÕûËùÓÐÊý¾Ý¿â¿ÉÄÜ»á±È½Ï·½±ã¡£Werysoft µÄ QweryBuilder Ö¼ÔÚΪÄúÌṩ´ËÏÄÜ¡£Äú¿ÉÒÔʹÓÃËü´Óͬһ GUI Á¬½Óµ½ Microsoft SQL Server¡¢Sybase ASE¡¢SQL Anywhere ºÍ Oracle ʵÀý£¬È»ºó²é¿´¡¢´´½¨¡¢¸üкÍɾ³ýÊý¾Ý¿â½Å±¾¡¢¼Ü ......
using System;
using System.Collections.Generic;
using System.Text;
using System.Data.SqlClient;
using System.Xml;
using System.Data;
namespace MyDbTest
{
class Program
{
static void Main(string[] args)
{
SqlConnection thisConnection = new SqlConnection(
@ ......
1.¼¤»îSQL¸ú×Ù
´Óoracle10gÒÔºóÌṩÁËÐµķ½·¨¼¤»îSQLµÄ¸ú×Ù£¬¼´ÊÇʹÓÃdbms_monitor°üÀ´¿ªÆô»ò¹Ø±ÕSQL¸ú×Ù¡£
֮ǰ¾É·½·¨ÊÇʹÓà alter session set events .. »òÕßʹÓÃdbms_system.set_ev·½Ê½
ʹÓÃdbms_monitor°ü¿ÉÒÔÔڻỰ£¬¿Í»§¶Ë£¬×é¼þÒÔ¼°Êý¾Ý¿âËĸö²ã¼¶¿ªÆôSQLµÄ¸ú×Ù¡ ......