Microsoft Access Database Engine ((top)) May 2026

Legacy systems, Windows-only automation, and rapid internal tools that need to query Excel or Access without overhead.

Console.WriteLine($"reader[0]: reader[1]"); microsoft access database engine

$conn = New-Object System.Data.OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Data\Customers.accdb") $conn.Open() $cmd = $conn.CreateCommand() $cmd.CommandText = "SELECT * FROM Orders WHERE OrderDate > #1/1/2023#" $reader = $cmd.ExecuteReader() while ($reader.Read()) Write-Host $reader["OrderID"] Persist Security Info=False

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Data\MyDatabase.accdb;Persist Security Info=False; OleDbCommand cmd = new OleDbCommand("SELECT [Region]

conn.Open(); OleDbCommand cmd = new OleDbCommand("SELECT [Region], SUM([Amount]) FROM [Sheet1$] GROUP BY [Region]", conn); OleDbDataReader reader = cmd.ExecuteReader(); while (reader.Read())