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C#ÖвÙ×÷OracleʱµÄSQLÓï¾ä²ÎÊýµÄÓ÷¨
OracleTransaction myTrans ;
conn.Open();
myTrans =conn.BeginTransaction(IsolationLevel.ReadCommitted);
comm.Transaction =myTrans;
comm.CommandText="insert into TagInfo(TagID,AutoSubSysID,TagCode,TagName,TagType,TagValueType,TagMaxValue,TagMinValue,TagAlartMax";
comm.CommandText+=" ,TagAlartMin,TagSaveInterval,TagSaveIgBand,ValidTerm,TimeStampMode,TagAlartPos";
comm.CommandText+=" ,TagAlartPosDes,Description) ";
comm.CommandText+=" values(trim(to_char(SeqTagID.Nextval ,'0000000000')),'0000000100',:TagCode,:TagName,:TagType,:TagValueType,:TagMaxValue,:TagMinValue,:TagAlartMax";
comm.CommandText+=" ,:TagAlartMin,:TagSaveInterval,:TagSaveIgBand,:ValidTerm,:TimeStampMode,:TagAlartPos";
comm.CommandText+=" &n
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CAST ( expression AS data_type )
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CONVERT (data_type[(length)], expression [, style])
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expression
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±íÖÐÖ÷¼ü±ØÐëΪ±êʶÁУ¬[ID] int IDENTITY (1,1)
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SELECT TOP Ò³¼Ç¼ÊýÁ¿ *
from ±íÃû
WHERE (ID NOT IN
(SELECT TOP (ÿҳÐÐÊý*(Ò³Êý-1)) ID
from ±íÃû
ORDER BY ID))
O ......
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/******* µ¼³öµ½excel
EXEC master..xp_cmdshell ’bcp SettleDB.dbo.shanghu out c:\temp1.xls -c -q -S"GNETDATA/GNETDATA" -U"sa" -P""’
/*********** µ¼ÈëExcel
SELECT *
from OpenDataSource( ’Microsoft.Jet.OLEDB.4.0’,
’Data Source="c:\test.xls";User ......