Trova Tabelle di Query e Oggetti Elenco relativi a Connessioni Dati Esterne

A volte è necessario scoprire le Tabelle di Query e gli Oggetti Elenco relativi a alcune Connessioni Dati Esterne. Le Tabelle di Query sono correlate all’oggetto Connessione Dati Esterne con Id Connessione, mentre gli Oggetti Elenco sono correlati a una Tabella di Query.

Trova query tabelle e oggetti elenco relativi alle connessioni esterne dei dati

I seguenti codici di esempio con file Excel di esempio spiegano come trovare tabelle di query e oggetti elenco correlati a una connessione dati esterne.

from aspose.cells import CellsHelper, Workbook
from aspose.cells.tables import TableDataSourceType

#  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(".")
#  Load workbook object
workbook = Workbook(dataDir + "sample.xlsm")
#  Check all the connections inside the workbook
for i in range(len(workbook.data_connections)):
    externalConnection = workbook.data_connections[i]
    print("connection: "  + externalConnection.name)
    #  Iterate all the worksheets
    for j in range(len(workbook.worksheets)):
        worksheet = workbook.worksheets[j]
        #  Check all the query tables in a worksheet
        for k in range(len(worksheet.query_tables)):
            qt = worksheet.query_tables[k]
            #  Check if query table is related to this external connection
            if externalConnection.id == qt.connection_id and qt.connection_id >= 0:
                #  Print the query table name and print its refersto range
                print("querytable "  + qt.name)
                n = qt.name
                n = n.replace("+", "_")
                n = n.replace("=", "_")
                name = workbook.worksheets.names.get("'"  + worksheet.name + "'!"  + n)
                if name != None:
                    range = name.get_range()
                    if range != None:
                        print("refersto: "  + range.refers_to)
        #  Iterate all the list objects in this worksheet
        for k in range(len(worksheet.list_objects)):
            table = worksheet.list_objects[k]
            #  Check the data source type if it is query table
            if table.data_source_type == TableDataSourceType.QUERY_TABLE:
                #  Access the query table related to list object
                qt = table.query_table
                #  Check if query table is related to this external connection
                if externalConnection.id == qt.connection_id and qt.connection_id >= 0:
                    #  Print the query table name and print its refersto range
                    print("querytable "  + qt.name)
                    print("Table "  + table.display_name)
                    print("refersto: "  + worksheet.name + "!"  + CellsHelper.cell_index_to_name(table.start_row, table.start_column) + ":"  + CellsHelper.cell_index_to_name(table.end_row, table.end_column))
    print()
print("Press any key to continue...")
input()

Il seguente è l’output della console dell’esecuzione dei codici di esempio precedenti con questo file Excel di esempio.

 connection: AAPL Connection

querytable hp?s=AAPL+Historical+Prices

refersto: =Sheet1!$Q$1:$W$69

connection: BOSL066360W7_SQLEXPRESS Test

querytable BOSL066360W7_SQLEXPRESS Test

Table Table_BOSL066360W7_SQLEXPRESS_Test

refersto: Sheet1!A1:B3

connection: BOSL066360W7_SQLEXPRESS Test1

querytable BOSL066360W7_SQLEXPRESS Test_1

Table Table_BOSL066360W7_SQLEXPRESS_Test_1

refersto: Sheet1!D1:E2

connection: UWTI Connection

querytable hp?s=UWTI+Historical+Prices

refersto: =Sheet1!$H$1:$N$69