在某些情况下熟悉SQL Server 通配符的使用可以帮助我们简单的解决很多问题。

  --使用_运算符查找Person表中以an结尾的三字母名字  USEAdventureWorks2012;  GO  SELECT FirstName, LastName  FROM Person.Person  WHERE FirstName LIKE'_an'  ORDER BY FirstName;     ---使用[^]运算符在Contact表中查找所有名字以Al开头且第三个字母不是字母a的人  USEAdventureWorks2012;  GO  SELECT FirstName, LastName  FROM Person.Person  WHERE FirstName LIKE'Al[^a]%'  ORDER BY FirstName;     ---使用[]运算符查找其地址中有四位邮政编码的所有Adventure Works雇员的ID和姓名  USEAdventureWorks2012;  GO  SELECT e.BusinessEntityID, p.FirstName, p.LastName, a.PostalCode  FROMHumanResources.EmployeeAS e  INNER JOIN Person.PersonAS pON e.BusinessEntityID= p.BusinessEntityID  INNER JOIN Person.BusinessEntityAddressAS eaON e.BusinessEntityID=ea.BusinessEntityID  INNER JOIN Person.AddressAS aON a.AddressID= ea.AddressID  WHERE a.PostalCodeLIKE'[0-9][0-9][0-9][0-9]';  

 
结果集:

   EmployeeID   FirstName   LastName   PostalCode  ----------   ---------   ---------   ----------  290       Lynn      Tsoflias   3000

  --将一张表中名字为中英文的区分出来(借鉴论坛中的代码)  create table tb(namenvarchar(20))     insert into tbvalues('kevin')  insert into tbvalues('kevin刘')  insert into tbvalues('刘')     select *,'Eng'from tbwherepatindex('%[a-z]%',name)>0and(patindex('%[吖-坐]%',name)=0)  union all  select *,'CN'from tbwherepatindex('%[吖-坐]%',name)>0andpatindex('%[a-z]%',name)=0  union all   select *,'Eng&CN'from tbwhere(patindex('%[吖-坐]%',name)>0)andpatindex('%[a-z]%',name)>0  

结果集:

  name          -------------------- ------  kevin        Eng  刘          CN  kevin刘       Eng&CN     (3 row(s) affected)   

       

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