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$ConnString = "server=_SERVER_;database=_DATABASE_;user id=_UID_;password=_PWD_";
$db = New-Object System.Data.SqlClient.SqlConnection($ConnString);
$db.Open();
$Sql = "select top 10 * from sys.objects where type='U' order by [Name]";
$cmd = New-Object System.Data.SqlClient.SqlCommand($Sql,$db);
$r = $cmd.ExecuteReader();
$a = "","";
while ($r.Read())
{
 $a = $a + $r["Name"].ToString();
}
$r.Close();
$cmd.Dispose();
$db.Close();
$db.Dispose();
echo $a


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   col1 varchar(1),
   col2 varchar(2)

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if object_id('[order]') is not null drop table [order]
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1) ʱ¼äת»»º¯ÊýÖÐÈç¹ûÓÐʱ¼ä±äÁ¿yyyy-mm-ddÁ½±ßÐèÁ½''
to_date(''' || to_char(a_valid_date_end, 'yyyy-mm-dd') ||''', ''yyyy-mm-dd'')
2) select distinct(e.itemnum) bulk collect into v_itemnum
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