Retrieving SQL Connection Data with Node.js via C++

Aspose.Cells can help you retrieve SQL connection data. This includes any and all data that is required to make a connection to the SQL server, for example, server URL, username, table name, full SQL query, query type, location of the table, and name of the named range associated with it.

In Microsoft Excel, connect to a database by:

Clicking the Data menu and selecting From Other Sources followed by From SQL Server.
Then select Data followed by Connections.
Use the Connections wizard to connect to the database and create a database query.

Aspose.Cells for Node.js via C++ provides the Workbook.dataConnections property for retrieving external connections. It returns an array of ExternalConnection objects in the workbook.

If the ExternalConnection object contains SQL connection data, it can be type-cast to a DBConnection object and its properties can be used to retrieve database command, command type, connection description, connection information, credentials, and so on.

const path = require("path");
const AsposeCells = require("aspose.cells.node");

// The path to the documents directory.
const dataDir = path.join(__dirname, "data");
const filePath = path.join(dataDir, "connection.xlsx");
// Create a workbook object from source file
const workbook = new AsposeCells.Workbook(filePath);

// Access the external collections
const connections = workbook.getDataConnections();
const connectionCount = connections.getCount();

let connection = null;

for (let i = 0; i < connectionCount; i++) {
connection = connections.get(i);

// Check if the Connection is DBConnection, then retrieve its various properties
if (connection.getClassType() === AsposeCells.ExternalConnectionClassType.DBConnection) {

const dbConn = connection;

// Retrieve DB Connection Command
console.log("Command: " + dbConn.getCommand());

// Retrieve DB Connection Command Type
console.log("Command Type: " + dbConn.getCommandType());

// Retrieve DB Connection Description
console.log("Description: " + dbConn.getConnectionDescription());

// Retrieve DB Connection ID
console.log("Id: " + dbConn.getId());

// Retrieve DB Connection Info
console.log("Info: " + dbConn.getConnectionString());

// Retrieve DB Connection Credentials
console.log("Credentials: " + dbConn.getCredentialsMethodType());

// Retrieve DB Connection Name
console.log("Name: " + dbConn.getName());

// Retrieve DB Connection ODC File
console.log("OdcFile: " + dbConn.getOdcFile());

// Retrieve DB Connection Source File
console.log("Source file: " + dbConn.getSourceFile());

// Retrieve DB Connection Type
console.log("Type: " + dbConn.getSourceType());

// Retrieve DB Connection Parameters Collection
const paramCollection = dbConn.getParameters();
const paramCount = paramCollection.getCount();

// Iterate the Parameter Collection
for (let j = 0; j < paramCount; j++) {
const param = paramCollection.get(j);

// Retrieve Parameter Cell Reference
console.log("Cell reference: " + param.getCellReference());

// Retrieve Parameter Name
console.log("Parameter name: " + param.getName());

// Retrieve Parameter Prompt
console.log("Prompt: " + param.getPrompt());

// Retrieve Parameter SQL Type
console.log("SQL Type: " + param.getSqlType());

// Retrieve Parameter Type
console.log("Param Type: " + param.getType());

// Retrieve Parameter Value
console.log("Param Value: " + param.getValue());
} // End for
} // End if
} // End for

Modify existing SQL Data Connection using Aspose.Cells for Node.js via C++