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EXEC sp_addumpdevice 'disk', 'testBack', 'c:\mssql7backup\MyNwind_1.dat'
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BACKUP DATABASE pubs TO testBack
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create table tabname(col1 type1 [not null] [primary key],col2 type2 [not null],..)
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drop table tabname
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Alter table tabname add column col type
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7¡¢ËµÃ÷£ºÌí¼ÓÖ÷¼ü£º Alter table tabname add primary key(col)
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ɾ³ý£ºdelete from table1 where ·¶Î§
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ƽ¾ù£ºselect avg(field1) as avgvalue from table1
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×îС£ºselect min(field1) as minvalue from table1
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