SQL 来自 powershell 的连接

Question

我正在尝试将我的脚本连接到数据库。以前我用：

psexec \servername -accepteula sqlcmd.exe -U username -P password -S database -Q query

现在，我想将其转换为 powershell 代码。我正在尝试这个：

Enter-PSSession servername
$SQLCred = New-Object System.Data.SqlClient.SqlCredential("username","password")
$Connection = New-Object System.Data.SqlClient.SqlConnection("Database",$SQLCred)
$Connection.Open()

但我总是得到这个错误：

Exception calling "Open" with "0" argument(s): "Login failed for user 'username'."

当然，我确定凭据是正确的。这两种连接方式有何不同？

Answer 1

连接字符串中提供了凭据：

$instance = "myInstance"
$userId = "myUserId"
$password = "myPassword"

$connectionString = "Data Source=$instance;Integrated Security=SSPI;Initial Catalog=master; User Id=$userId; Password=$password;"

$connection = New-Object System.Data.SqlClient.SqlConnection
$connection.ConnectionString = $connectionString
$connection.Open()

如果您已有凭证对象，可以这样使用它：

$cred = New-Object System.Data.SqlClient.credential($userId, $password)
$connectionString = "Data Source=$Instance;Integrated Security=SSPI;Initial Catalog=master; User Id = $($cred.username); Password = $($cred.GetNetworkCredential().password);"
$connection = New-Object System.Data.SqlClient.SqlConnection
$connection.ConnectionString = $connectionString
$connection.Open()

Answer 2

    $SQLCredential = New-Object System.Data.SqlClient.SqlCredential($SQLUserName, $SQLPassword)
    $SQLServerConnection = New-Object System.Data.SqlClient.SqlConnection("Data Source=$SQLInstanceName; Initial Catalog=MASTER")
    $SQLServerConnection.Credential = $SQLCredential
    try
    {
        $SQLServerConnection.Open()
    }

SQL 来自 powershell 的连接

SQL Connection From powershell

sql-server

powershell

sqlcmd