SQL sever 2008 Rar! ?s X<t ? ? ? ?祕BwL0 17240671-1.sql ?0) GO ALTER TABLE Product ADD CONSTRAINT CK_Product_Price CHECK(Price>0) GO ALTER TABLE Proln ADD CONSTRAINT CK_Proln_Quantity CHECK (Quantity>0) GO ALTER TABLE ProOut ADD CONSTRAINT C

用于测试mysql索引性能