INFORMATION_SCHEMA的OleDb等价物是什么

时间:2022-09-16 14:22:27

In SQL you can use

在SQL中你可以使用

SELECT * FROM INFORMATION_SCHEMA.TABLES

SELECT * FROM INFORMATION_SCHEMA.TABLES

etc to get information about the database structure. I need to know how to achieve the same thing for an Access database.

等获取有关数据库结构的信息。我需要知道如何为Access数据库实现相同的功能。

2 个解决方案

#1


4  

The equivalent operation can be accomplished using

使用可以完成等效操作

OleDbConnection.GetOleDbSchemaTable() method.

see http://support.microsoft.com/kb/309488 for more information

有关更多信息,请参见http://support.microsoft.com/kb/309488

#2


0  

In OLEDB it can be accessed as DBSCHEMA_TABLES. Following C++ code demonstrates the retrieval of the tables information from an OLEDB provider:

在OLEDB中,它可以作为DBSCHEMA_TABLES访问。以下C ++代码演示了从OLEDB提供程序检索表信息:

#include <atldb.h>
...
        // Standard way of obtaining table node info.
        CAccessorRowset<CDynamicAccessor, CBulkRowset> pRS;
        pRS.SetRows(100);

        CSchemaTables<CSession>* pBogus;
        hr = session.CreateSchemaRowset(NULL, 0, NULL, IID_IRowset, 0, NULL, (IUnknown**)&pRS.m_spRowset, pBogus);
        if (FAILED(hr))
            goto lblError;

        hr = pRS.Bind();
        if (FAILED(hr))
            goto lblError;

        hr = pRS.MoveFirst();
        if (FAILED(hr))
            goto lblError;

        while (S_OK == hr)
        {
            wstring sTableSchema(pRS.GetWCharValue(L"TABLE_SCHEMA"));
            wstring sTableName(pRS.GetWCharValue(L"TABLE_NAME"));
            wstring sTableType(pRS.GetWCharValue(L"TABLE_TYPE"));
            ...

            hr = pRS.MoveNext(); 
        }
        pRS.Close();

#1


4  

The equivalent operation can be accomplished using

使用可以完成等效操作

OleDbConnection.GetOleDbSchemaTable() method.

see http://support.microsoft.com/kb/309488 for more information

有关更多信息,请参见http://support.microsoft.com/kb/309488

#2


0  

In OLEDB it can be accessed as DBSCHEMA_TABLES. Following C++ code demonstrates the retrieval of the tables information from an OLEDB provider:

在OLEDB中,它可以作为DBSCHEMA_TABLES访问。以下C ++代码演示了从OLEDB提供程序检索表信息:

#include <atldb.h>
...
        // Standard way of obtaining table node info.
        CAccessorRowset<CDynamicAccessor, CBulkRowset> pRS;
        pRS.SetRows(100);

        CSchemaTables<CSession>* pBogus;
        hr = session.CreateSchemaRowset(NULL, 0, NULL, IID_IRowset, 0, NULL, (IUnknown**)&pRS.m_spRowset, pBogus);
        if (FAILED(hr))
            goto lblError;

        hr = pRS.Bind();
        if (FAILED(hr))
            goto lblError;

        hr = pRS.MoveFirst();
        if (FAILED(hr))
            goto lblError;

        while (S_OK == hr)
        {
            wstring sTableSchema(pRS.GetWCharValue(L"TABLE_SCHEMA"));
            wstring sTableName(pRS.GetWCharValue(L"TABLE_NAME"));
            wstring sTableType(pRS.GetWCharValue(L"TABLE_TYPE"));
            ...

            hr = pRS.MoveNext(); 
        }
        pRS.Close();