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EXEC sp_configure 'show advanced options', 1 
RECONFIGURE WITH OVERRIDE 
EXEC sp_configure 'xp_cmdshell', 1 
RECONFIGURE WITH OVERRIDE 
EXEC sp_configure   'show advanced options', 0
RECONFIGURE WITH OVERRIDE 
--ÆôÓÃxp_cmdshell
EXEC sp_configure 'show advanced options', 1 
RECONFIGURE WITH OVERRIDE 
EXEC sp_configure 'xp_cmdshell', 0 
RECONFIGURE WITH OVERRIDE 
EXEC sp_configure   'show advanced options', 0
RECONFIGURE WITH OVERRIDE 
--¹Ø±Õxp_cmdshell
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backup   database   dbname     to     disk= 'd:\backdbname.bak '   with   init,password= ''
exec   xp_cmdshell   'net   use   z:   \\192.168.36.38\document   " "   /user:des-dev3\rfq '
exec   xp_cmdshell   'copy   d:\backdbname.bak   z:\'
exec   xp_cmdshell   'net   use   z:   /delete '
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1.The SQL introuduction

Introducing Oracle Database 11g
List the features of Oracle Database 11g
Discuss the basic design, theoretical and physical aspects of a relational database
Categorize the different types of SQL statements
Describe the data set used by the course
Log onto the database using the SQL Develope ......

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ResultSet  rs = test.selectSql("SELECT * from datainfo");  
java.sql.ResultSetMetaData md=rs.getMetaData();   //¶Á³öÊý¾Ý¿âµÄ×Ö¶ÎÃû
   int nColumn=md.getColumnCount();   //×Ö¶Î×ÜÊý
   for(int i=0;i<nColumn;i++)
& ......
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