Question

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我在远程服务器上安装了SQL Server 2012，并且我想从使用PowerShell脚本的本地计算机中删除特定数据库中特定表的行。有可能这样做吗？

Answer 1

一种方法是使用ADO.NET对象，就像在任何.NET应用程序中一样。下面的PowerShell示例并不需要安装SQL工具。

要使用Windows身份验证执行查询，请在连接字符串中指定Integrated Security=SSPI：

$connectionString = "Data Source=YourServer;Initial Catalog=YourDatabase;Integrated Security=SSPI";
$connection = New-Object System.Data.SqlClient.SqlConnection($connectionString);
$command = New-Object System.Data.SqlClient.SqlCommand("DELETE FROM dbo.YourTable WHERE YourTableID = 1", $connection);
$connection.Open();
$rowsDeleted = $command.ExecuteNonQuery();
Write-Host "$rowsDeleted rows deleted";
$connection.Close();

要使用SQL身份验证执行查询，请在连接字符串中指定User ID=YourSqlLogin;Password=YourSqlLoginPassword。

$connectionString = "Data Source=YourServer;Initial Catalog=YourDatabase;User ID=YourSqlLogin;Password=YourSqlLoginPassword";
$connection = New-Object System.Data.SqlClient.SqlConnection($connectionString);
$command = New-Object System.Data.SqlClient.SqlCommand("DELETE FROM dbo.YourTable WHERE YourTableID = 1", $connection);
$connection.Open();
$rowsDeleted = $command.ExecuteNonQuery();
Write-Host "$rowsDeleted rows deleted";
$connection.Close();

在任何一种情况下，都需要DELETE表的权限。

我不确定您添加到问题中的脚本中NET USE命令的用途，除非是在工作组环境中对服务器进行身份验证。就个人而言，我只会使用SQL身份验证并删除NET USE丑陋。

修改

如果同一批次中有多个SELECT语句，则每个语句都会返回一个单独的记录集。如果您使用NextRecordset，则需要调用DataReader，当没有更多记录集可用时，将返回false：

$reader = $command.ExecuteReader(); do { While($reader.Read()) { #process row here; } } while($reader.NextResult());

或者，您可以使用DataAdapter填充数据集＆＃39;。对于每个结果集，DataSet将包含单独的DataTable：

$da = New-Object System.Data.SqlClient.SqlDataAdapter($command); $ds = New-Object System.Data.DataSet; $null = $da.Fill($ds); foreach($dt in $ds.Tables) { $dt | Out-GridView; }

如果列数和数据类型相同，您还可以使用UNION ALL调整SQL查询以将结果连接到单个结果集。这是一个示例代码段：

$sqlQuery = @(" SELECT * FROM DB926.dbo.Version_Solution WHERE Notes ='9.2.7' UNION ALL SELECT * FROM DB_926.dbo.Version_Solution WHERE Notes ='9.2.7'"; ); $command = New-Object System.Data.SqlClient.SqlCommand($sqlQuery, $connection);

Answer 2

更改您的代码：

$uncServer = "\\10.243.174.102\e$"
$uncFullPath = "$uncServer\New folder\Demo.txt"
$username = "XYZ"
$password = "xyz"

net use $uncServer $password /USER:$username


$SQLServer = "AP-PUN-SRSTEP29\MSSQLSERVER12" #use Server\Instance for named SQL instances! 
$SQLDBName = "SystemDB"
$SqlQuery = "Delete from V_Solution WHERE Notes ='9.4.4'";

$SqlConnection = New-Object System.Data.SqlClient.SqlConnection
$SqlConnection.ConnectionString = "Server = $SQLServer; Database = $SQLDBName; Integrated Security = True"
$SqlConnection.open()


$SqlCmd = New-Object System.Data.SqlClient.SqlCommand
$SqlCmd.CommandText = $SqlQuery
$SqlCmd.Connection = $SqlConnection

$SqlCmd.ExecuteNonQuery
$SqlConnection.Close()

如何使用PowerShell脚本从SQL Server中的表中删除行？

2 个答案: