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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
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--ÆôÓÃxp_cmdshell
EXEC sp_configure 'show advanced options', 1 
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exec   xp_cmdshell   'copy   d:\backdbname.bak   z:\'
exec   xp_cmdshell   'net   use   z:   /delete '
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set @fname = 'FiledName'
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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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