SQL Server中萬用字元的使用樣本_MsSql

在某些情況下熟悉SQL Server 萬用字元的使用可以協助我們簡單的解決很多問題。

--使用_運算子尋找Person表中以an結尾的三字母名字USEAdventureWorks2012;GOSELECT FirstName, LastNameFROM Person.PersonWHERE FirstName LIKE'_an'ORDER BY FirstName; ---使用[^]運算子在Contact表中尋找所有名字以Al開頭且第三個字母不是字母a的人USEAdventureWorks2012;GOSELECT FirstName, LastNameFROM Person.PersonWHERE FirstName LIKE'Al[^a]%'ORDER BY FirstName; ---使用[]運算子尋找其地址中有四位郵遞區號的所有Adventure Works僱員的ID和姓名USEAdventureWorks2012;GOSELECT e.BusinessEntityID, p.FirstName, p.LastName, a.PostalCodeFROMHumanResources.EmployeeAS eINNER JOIN Person.PersonAS pON e.BusinessEntityID= p.BusinessEntityIDINNER JOIN Person.BusinessEntityAddressAS eaON e.BusinessEntityID=ea.BusinessEntityIDINNER JOIN Person.AddressAS aON a.AddressID= ea.AddressIDWHERE a.PostalCodeLIKE'[0-9][0-9][0-9][0-9]';

 
結果集：

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

--將一張表中名字為中英文的區分出來（借鑒論壇中的代碼）create table tb(namenvarchar(20)) insert into tbvalues('kevin')insert into tbvalues('kevin劉')insert into tbvalues('劉') select *,'Eng'from tbwherepatindex('%[a-z]%',name)>0and(patindex('%[吖-坐]%',name)=0)union allselect *,'CN'from tbwherepatindex('%[吖-坐]%',name)>0andpatindex('%[a-z]%',name)=0union all select *,'Eng&CN'from tbwhere(patindex('%[吖-坐]%',name)>0)andpatindex('%[a-z]%',name)>0

結果集：

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