大家看我的SQL语句,ACCESS中提示constraint子句错误,然后指到CHECK?????
CREATE   TABLE   Course   (Cno   CHAR(4)   PRIMARY   KEY,   Cname   CHAR(20)   NOT   NULL,Ccredit   int,Period   int,constraint   Ccredit_name   CHECK(Ccredit> 0),constraint   Period_name   CHECK(Periok> 0))  

要求Cno为主键,Ccredit和Period   字段值要大于0,
我的SQL语句错哪里啦

------解决方案--------------------
Dim Cnn As New ADODB.Connection
ff = "CREATE TABLE Course (Cno CHAR(4) PRIMARY KEY, Cname CHAR(20) NOT NULL,Ccredit int,Period int,constraint Ccredit_name CHECK(Ccredit> 0),constraint Period_name CHECK(Period> 0)) "
Cnn.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\zz\db2.MDB;Persist Security Info=False "
Cnn.Execute (ff)