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create function dbo.F_Get_No
(
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 WHILE PATINDEX('%[^0-9]%',@No)>0
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  SET @No=STUFF(@No,PATINDEX('%[^0-9]%',@No),1,'') --ɾµôÒ»¸ö·ÇÊý×ÖµÄ×Ö·û£¬Ñ­»·½áÊø£¬Ê£ÓàµÄΪÊý×Ö²¿·Ö
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alter table hwsp add column ylxs
ALTER TABLE ±í {ADD ADD{COLUMN ×Ö¶ÎÀàÐÍ [ (×Ö³¤)] [NOT NULL]     [CONSTRAINT Ë÷Òý ] |
     ALTER COLUMN ×Ö¶ÎÀàÐÍ [(×Ö³¤)] |
     CONSTRAINT ¶àÖØ×Ö¶ÎË÷Òý } |
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