检索SQL连接数据

Aspose.Cells for Python via .NET可以帮助您检索SQL连接数据。这包括连接到SQL服务器所需的所有数据，例如服务器URL、用户名、表名、完整SQL查询、查询类型、表位置和关联的命名范围等。

在Microsoft Excel中，通过以下步骤连接数据库：

1. 单击数据菜单，选择来自其他源，然后选择来自SQL Server。
2. 然后选择数据，然后选择连接。 3.使用连接向导连接到数据库并创建数据库查询。

Aspose.Cells for Python via .NET提供Workbook.DataConnections属性，用于检索外部连接。它返回工作簿中的ExternalConnection对象集合。

如果ExternalConnection对象包含SQL连接数据，它可以被类型转换为DBConnection对象，并且它的属性可以用于检索数据库命令、命令类型、连接描述、连接信息、凭据等。

from aspose import pycore
from aspose.cells import Workbook
from aspose.cells.externalconnections import DBConnection

#  For complete examples and data files, please go to https:# github.com/aspose-cells/Aspose.Cells-for-.NET
#  The path to the documents directory.
dataDir = RunExamples.GetDataDir(".")
#  Create a workbook object from source file
workbook = Workbook(dataDir + "connection.xlsx")
#  Access the external collections
connections = workbook.data_connections
connectionCount = len(connections)
connection = None
for i in range(connectionCount):
    connection = connections[i]
    #  Check if the Connection is DBConnection, then retrieve its various properties
    if connection is DBConnection:
        dbConn = pycore.cast(DBConnection, connection)
        #  Retrieve DB Connection Command
        print("Command: "  + dbConn.command)
        #  Retrieve DB Connection Command Type
        print("Command Type: "  + str(dbConn.command_type))
        #  Retrieve DB Connection Description
        print("Description: "  + dbConn.connection_description)
        #  Retrieve DB Connection ID
        print("Id: "  + str(dbConn.connection_id))
        #  Retrieve DB Connection Info
        print("Info: "  + dbConn.connection_info)
        #  Retrieve DB Connection Credentials
        print("Credentials: "  + str(dbConn.credentials_method_type))
        #  Retrieve DB Connection Name
        print("Name: "  + dbConn.name)
        #  Retrieve DB Connection ODC File
        print("OdcFile: "  + dbConn.odc_file)
        #  Retrieve DB Connection Source File
        print("Source file: "  + dbConn.source_file)
        #  Retrieve DB Connection Type
        print("Type: "  + str(dbConn.type))
        #  Retrieve DB Connection Parameters Collection
        paramCollection = dbConn.parameters
        paramCount = len(paramCollection)
        #  Iterate the Parameter Collection
        for j in range(paramCount):
            param = paramCollection[j]
            #  Retrieve Parameter Cell Reference
            print("Cell reference: "  + param.cell_reference)
            #  Retrieve Parameter Name
            print("Parameter name: "  + param.name)
            #  Retrieve Parameter Prompt
            print("Prompt: "  + param.prompt)
            #  Retrieve Parameter SQL Type
            print("SQL Type: "  + str(param.sql_type))
            #  Retrieve Parameter Type
            print("Param Type: "  + str(param.type))
            #  Retrieve Parameter Value
            print("Param Value: "  + str(param.value))