SQL Server中通配符的使用示例

--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 LIKEAl[^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];

 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 *,Engfrom tbwherepatindex(%[a-z]%,name)>0and(patindex(%[吖-坐]%,name)=0)
union all
select *,CNfrom tbwherepatindex(%[吖-坐]%,name)>0andpatindex(%[a-z]%,name)=0
union all 
select *,Eng&CNfrom tbwhere(patindex(%[吖-坐]%,name)>0)andpatindex(%[a-z]%,name)>0

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