Microsoft Business Connectivity Services (BCS) 可从以下各类数据库连接到外部数据:
Microsoft SQL Server
Oracle
OLE DB
ODBC
如何:基于 SQL Server 表创建外部内容类型这一主题说明使用 Business Connectivity Services 显示来自 SQL Server 数据库的外部数据的基本方式。在使用其他数据库(如 Oracle、OLE DB 和 ODBC)时,必须遵循下列方法之一(因为 Microsoft SharePoint Designer 2010 不支持这些数据库):
从头开始创建 Business Connectivity Services 模型。有关信息,请参阅创作 BDC 模型。有关编写或修改 Oracle 数据库的模型时的注意事项,请参阅下一节。
创建 Web 服务或 .NET 连接程序集,为数据库中公开的外部数据提供接口。有关详细信息,请参阅Creating Web and WCF Services for Business Connectivity Services和如何:创建 .NET 连接程序集。
按照创作 BDC 模型中的过程执行操作以从头开始创建模型。
在编写或修改 BDC 模型以连接到 Oracle 时,应记住以下注意事项:
Oracle SQL 语法要求您按以下方式指定查询中的参数:为参数添加冒号 (:) 而非 @ 符号前缀。确保在元数据的 SQL 语句中正确设置它们。
如果 Oracle 连接需要连接字符串中的显式用户 ID 和密码参数,则:
使用 Oracle 凭据在 Secure Store Service 中设置应用程序定义。
使用 RdbCredentials 的 AuthenticationMode。
在将 RdbCredentials 用作验证模式时,无法使用 RdbConnection User ID 和 RdbConnection Password 属性,因为这些值是由 Secure Store Service 提供的。如果指定这些值,则会将其忽略。必须使用安全存储来提供 Oracle 凭据。
必须在服务器场中的所有计算机上安装 Oracle 客户端,并且必须将 TNS net 服务配置为从 SharePoint 连接到 Oracle。这对于服务器上的外部列表、Web 部件和配置文件页是必需的。由于应用程序(如搜索)只在应用程序服务器上运行,因此可以在应用程序服务器上安装 Oracle 客户端。搜索将只从应用程序服务器连接。简而言之,必须在从中连接到 Oracle 的服务器场的计算机上安装 Oracle 客户端。出于同一原因,还必须在富客户端计算机上安装 Oracle 客户端。
以下示例演示如何为使用 Secure Store Service 进行连接的 Oracle 数据库设置 LobSystemInstance 属性。将 YOUR_ORACLE_NET_SERVICE_NAME_HERE 替换为 TNS net 服务名称,并将 SECURESTORE_ORACLE_APP_ID_HERE 替换为在 Secure Store Service 中设置的企业应用程序定义的名称。
<?xml version="1.0" encoding="utf-8" standalone="yes"?> <Model xmlns="http://schemas.microsoft.com/windows/2007/BusinessDataCatalog" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://schemas.microsoft.com/windows/2007/BusinessDataCatalog BDCMetadata.xsd" Name="OracleHRDB"> <LobSystems> <LobSystem Type="Database" Name="OracleHR" DefaultDisplayName="Oracle 2"> <Properties> <Property Name="WildcardCharacter" Type="System.String">%</Property> </Properties> <LobSystemInstances> <LobSystemInstance Name="Oracle HR Instance"> <Properties> <Property Name="AuthenticationMode" Type="System.String">RdbCredentials </Property> <Property Name="DatabaseAccessProvider" Type="System.String">Oracle </Property> <Property Name="RdbConnection Data Source" Type="System.String"> YOUR_ORACLE_NET_SERVICE_NAME_HERE</Property> <Property Name="SsoApplicationId" Type="System.String"> SECURESTORE_ORACLE_APP_ID_HERE</Property> <!-- Server ship <Property Name="SsoProviderImplementation" Type="System.String"> Microsoft.Office.SecureStoreService.Server.SecureStoreProvider, Microsoft.Office.SecureStoreService, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c</Property> --> <!-- Client Ship --> <Property Name="SsoProviderImplementation" Type="System.String"> Microsoft.Office.BusinessData.Infrastructure.SecureStore.LocalSecureStoreProvider, Microsoft.Office.BusinessData, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c</Property> </Properties> </LobSystemInstance> </LobSystemInstances> <Entities> <Entity EstimatedInstanceCount="10000" Name="Employee" DefaultDisplayName="Employee" Namespace="HR.OracleModel" Version="1.0.0.0"> <Properties> <Property Name="Title" Type="System.String">EName</Property> </Properties> <Identifiers> <Identifier TypeName="System.String" Name="EmployeeName" /> </Identifiers> <Methods> <Method Name="EmployeeFinder"> <Properties> <Property Name="RdbCommandText" Type="System.String"> SELECT EMPNO,ENAME,JOB,MGR,HIREDATE,SAL,COMM,DEPTNO FROM SCOTT.EMP WHERE ENAME LIKE :Name ORDER BY EMPNO</Property> <Property Name="RdbCommandType" Type="System.Data.CommandType, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> Text</Property> </Properties> <FilterDescriptors> <FilterDescriptor Type="Wildcard" Name="EmployeeName" /> </FilterDescriptors> <Parameters> <Parameter Direction="In" Name=":Name"> <TypeDescriptor TypeName="System.String" IdentifierName="EmployeeName" AssociatedFilter="EmployeeName" Name="EmployeeName" > <DefaultValues> <DefaultValue MethodInstanceName="IdEnumeratorInstance" Type="System.String">%</DefaultValue> <DefaultValue MethodInstanceName="EmployeeFinderInstance" Type="System.String">%</DefaultValue> </DefaultValues> </TypeDescriptor> </Parameter> <Parameter Direction="Return" Name="Employees"> <TypeDescriptor TypeName="System.Data.IDataReader, System.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" IsCollection="true" Name="Employees"> <TypeDescriptors> <TypeDescriptor TypeName="System.Data.IDataRecord, System.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Name="Employee"> <TypeDescriptors> <TypeDescriptor TypeName="System.Decimal" Name="EMPNO" /> <TypeDescriptor TypeName="System.String" ReadOnly ="true" IdentifierName="EmployeeName" Name="ENAME" /> <TypeDescriptor TypeName="System.String" Name="JOB" /> <TypeDescriptor TypeName="System.Decimal" Name="MGR" /> <TypeDescriptor TypeName="System.DateTime" Name="HIREDATE" /> <TypeDescriptor TypeName="System.Decimal" Name="SAL" /> <TypeDescriptor TypeName="System.Decimal" Name="COMM" /> <TypeDescriptor TypeName="System.Decimal" Name="DEPTNO" /> </TypeDescriptors> </TypeDescriptor> </TypeDescriptors> </TypeDescriptor> </Parameter> </Parameters> <MethodInstances> <MethodInstance Type="Finder" ReturnParameterName="Employees" ReturnTypeDescriptorName="Employees" ReturnTypeDescriptorLevel="0" Name="EmployeeFinderInstance" > <AccessControlList> <AccessControlEntry Principal="redmond\domain users"> <Right BdcRight="Execute"/> <Right BdcRight="Edit"/> <Right BdcRight="SetPermissions"/> <Right BdcRight="SelectableInClients"/> </AccessControlEntry> </AccessControlList> </MethodInstance> <MethodInstance Type="SpecificFinder" ReturnParameterName="Employees" ReturnTypeDescriptorName="Employee" ReturnTypeDescriptorLevel="1" Name="EmployeeSpecificFinderInstance" > <AccessControlList> <AccessControlEntry Principal="redmond\domain users"> <Right BdcRight="Execute"/> <Right BdcRight="Edit"/> <Right BdcRight="SetPermissions"/> <Right BdcRight="SelectableInClients"/> </AccessControlEntry> </AccessControlList> </MethodInstance> <MethodInstance Type="IdEnumerator" ReturnParameterName="Employees" ReturnTypeDescriptorName="Employees" ReturnTypeDescriptorLevel="0" Name="IdEnumeratorInstance" > <AccessControlList> <AccessControlEntry Principal="redmond\domain users"> <Right BdcRight="Execute"/> <Right BdcRight="Edit"/> <Right BdcRight="SetPermissions"/> <Right BdcRight="SelectableInClients"/> </AccessControlEntry> </AccessControlList> </MethodInstance> </MethodInstances> </Method> <Method Name="Update" DefaultDisplayName="EmployeeUpdater"> <Properties> <Property Name="RdbCommandType" Type="System.Data.CommandType, System.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> Text</Property> <Property Name="RdbCommandText" Type="System.String"> UPDATE SCOTT.EMP SET EMPNO=:EmpNo,JOB=:Job,MGR=:Mgr,HIREDATE=:HireDate, SAL=:Sal,COMM=:Comm,DEPTNO=:DeptNo WHERE ENAME=:Name</Property> </Properties> <AccessControlList> <AccessControlEntry Principal="redmond\domain users"> <Right BdcRight="Edit" /> <Right BdcRight="Execute" /> <Right BdcRight="SetPermissions" /> <Right BdcRight="SelectableInClients" /> </AccessControlEntry> </AccessControlList> <Parameters> <Parameter Direction="In" Name=":EmpNo"> <TypeDescriptor TypeName="System.Decimal" UpdaterField="true" Name="EMPNO" /> </Parameter> <Parameter Direction="In" Name=":Name"> <TypeDescriptor TypeName="System.String" IdentifierName="EmployeeName" Name="EmployeeName" > </TypeDescriptor> </Parameter> <Parameter Direction="In" Name=":Job"> <TypeDescriptor TypeName="System.String" UpdaterField="true" Name="JOB" /> </Parameter> <Parameter Direction="In" Name=":Mgr"> <TypeDescriptor TypeName="System.Decimal" UpdaterField="true" Name="MGR" /> </Parameter> <Parameter Direction="In" Name=":HireDate"> <TypeDescriptor TypeName="System.Nullable`1[[System.DateTime, mscorlib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]" UpdaterField="true" Name="HIREDATE" /> </Parameter> <Parameter Direction="In" Name=":Sal"> <TypeDescriptor TypeName="System.Nullable`1[[System.Decimal, mscorlib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]" UpdaterField="true" Name="SAL" /> </Parameter> <Parameter Direction="In" Name=":Comm"> <TypeDescriptor TypeName="System.Nullable`1[[System.Decimal, mscorlib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]" UpdaterField="true" Name="COMM"> <Properties> <Property Name="Decimal Digits" Type="System.Int32">9</Property> </Properties> </TypeDescriptor> </Parameter> <Parameter Direction="In" Name=":Deptno"> <TypeDescriptor TypeName="System.Nullable`1[[System.Decimal, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]" UpdaterField="true" Name="DEPTNO"> <Properties> <Property Name="Decimal Digits" Type="System.Int32">9</Property> </Properties> </TypeDescriptor> </Parameter> </Parameters> <MethodInstances> <MethodInstance Type="Updater" Name="Update" DefaultDisplayName="SQLAllTypes Update"> <AccessControlList> <AccessControlEntry Principal="redmond\domain users"> <Right BdcRight="Edit" /> <Right BdcRight="Execute" /> <Right BdcRight="SetPermissions" /> <Right BdcRight="SelectableInClients" /> </AccessControlEntry> </AccessControlList> </MethodInstance> </MethodInstances> </Method> <Method Name="Delete" DefaultDisplayName="EmployeeDelete"> <Properties> <Property Name="RdbCommandText" Type="System.String"> DELETE FROM SCOTT.EMP WHERE ENAME = :Name</Property> <Property Name="RdbCommandType" Type="System.Data.CommandType, System.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> Text</Property> </Properties> <AccessControlList> <AccessControlEntry Principal="redmond\domain users"> <Right BdcRight="Edit" /> <Right BdcRight="Execute" /> <Right BdcRight="SetPermissions" /> <Right BdcRight="SelectableInClients" /> </AccessControlEntry> </AccessControlList> <Parameters> <Parameter Direction="In" Name=":Name"> <TypeDescriptor TypeName="System.String" IdentifierName="EmployeeName" Name="EmployeeName" > </TypeDescriptor> </Parameter> </Parameters> <MethodInstances> <MethodInstance Type="Deleter" Name="Delete" DefaultDisplayName="Employee Delete"> <AccessControlList> <AccessControlEntry Principal="redmond\domain users"> <Right BdcRight="Edit" /> <Right BdcRight="Execute" /> <Right BdcRight="SetPermissions" /> <Right BdcRight="SelectableInClients" /> </AccessControlEntry> </AccessControlList> </MethodInstance> </MethodInstances> </Method> </Methods> </Entity> </Entities> </LobSystem> </LobSystems> </Model>