要导出到CSV的Powershell

我有我的方法（除非我做了一些愚蠢的事情）在昨天导出到csv时非常有效。然而，今天我不断地犯下这样的错误：

使用“1”参数调用“Fill”时出现异常：“ExecuteReader:CommandText属性尚未初始化”

• $rowCount=$SqlAdapter.Fill（$dt）
• ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  • CategoryInfo:NotSpecified:（：）[]，MethodInvocationException
  • FullyQualifiedErrorId:InvalidOperationException

这是我的语法：

$server = "serverinstance"
$database = "databaseinstance"
$savefile = "C:\Test\sqlresults.csv"
$SelectQuery = "Select Top 1 * from madeuptable"
$connectionTemplate = "Data Source={0};Integrated Security=SSPI;Initial Catalog={1};"
$connectionString = [string]::Format($connectionTemplate, $server, $database)
$connection=New-Object System.Data.SqlClient.SqlConnection($connectionString)

$cmd=$connection.CreateCommand()
$cmd.CommandText = $SelectQuery 

$SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter($cmd)
$dt = New-Object System.Data.DataTable
$rowCount=$SqlAdapter.Fill($dt)

if ($rowCount -gt 0) { $dt| Export-Csv $savefile -encoding UTF8 -NoTypeInformation }
$connection.Close()

---

尝试使用查询和连接创建SqlDataAdaper（并删除cmd）

例如：

$SqlAdapter = new-object system.data.sqlclient.sqldataadapter ($SelectQuery, $connection)

---

尝试使用查询和连接创建SqlDataAdaper（并删除cmd）

例如：

$SqlAdapter = new-object system.data.sqlclient.sqldataadapter ($SelectQuery, $connection)

---

我将检查您的$server和$database变量。我刚刚在我自己的SQL server上运行了您的脚本，它对我来说运行得很好

编辑：

以下是我的跑步记录：

$server = "FAR-L2484\HOLDER_SQL"  ## Hostname\InstanceID
$database = "MASTER"
$savefile = "C:\Test\sqlresults.csv"
$SelectQuery = "SELECT * FROM information_schema.tables"
$connectionTemplate = "Data Source={0};Integrated Security=SSPI;Initial Catalog={1};"
$connectionString = [string]::Format($connectionTemplate, $server, $database)
$connection=New-Object System.Data.SqlClient.SqlConnection($connectionString)

$cmd=$connection.CreateCommand()
$cmd.CommandText = $SelectQuery 

$SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter($cmd)
$dt = New-Object System.Data.DataTable
$rowCount=$SqlAdapter.Fill($dt)

$dt| Export-Csv $savefile -encoding UTF8 -NoTypeInformation
$connection.Close()

这是我在C:\test\sqlresults.csv中得到的

"TABLE_CATALOG","TABLE_SCHEMA","TABLE_NAME","TABLE_TYPE"
"master","dbo","spt_fallback_db","BASE TABLE"
"master","dbo","spt_fallback_dev","BASE TABLE"
"master","dbo","spt_fallback_usg","BASE TABLE"
"master","dbo","spt_values","VIEW"
"master","dbo","spt_monitor","BASE TABLE"
"master","dbo","MSreplication_options","BASE TABLE"

---

我将检查您的$server和$database变量。我刚刚在我自己的SQL server上运行了您的脚本，它对我来说运行得很好

编辑：

以下是我的跑步记录：

$server = "FAR-L2484\HOLDER_SQL"  ## Hostname\InstanceID
$database = "MASTER"
$savefile = "C:\Test\sqlresults.csv"
$SelectQuery = "SELECT * FROM information_schema.tables"
$connectionTemplate = "Data Source={0};Integrated Security=SSPI;Initial Catalog={1};"
$connectionString = [string]::Format($connectionTemplate, $server, $database)
$connection=New-Object System.Data.SqlClient.SqlConnection($connectionString)

$cmd=$connection.CreateCommand()
$cmd.CommandText = $SelectQuery 

$SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter($cmd)
$dt = New-Object System.Data.DataTable
$rowCount=$SqlAdapter.Fill($dt)

$dt| Export-Csv $savefile -encoding UTF8 -NoTypeInformation
$connection.Close()

这是我在C:\test\sqlresults.csv中得到的

"TABLE_CATALOG","TABLE_SCHEMA","TABLE_NAME","TABLE_TYPE"
"master","dbo","spt_fallback_db","BASE TABLE"
"master","dbo","spt_fallback_dev","BASE TABLE"
"master","dbo","spt_fallback_usg","BASE TABLE"
"master","dbo","spt_values","VIEW"
"master","dbo","spt_monitor","BASE TABLE"
"master","dbo","MSreplication_options","BASE TABLE"

---

$SelectQuery

脚本中似乎缺少。@Kenney-复制/粘贴错误已更新。如果运行发布的代码段，该怎么办？@Kenney-否发布的代码段会产生错误。我可以运行您的代码，没有问题。您的复制/粘贴错误将解释您收到的错误消息。

$SelectQuery

脚本中似乎缺少。@Kenney-复制/粘贴错误已更新。如果您运行发布的代码段，该操作是否有效？@Kenney-否发布的代码段会产生错误。我可以运行您的代码，没有问题。您的复制/粘贴错误可以解释您收到的错误消息。我注释掉了以$cmd开头并添加到yoursw中的两行，得到了相同的错误。我注释掉了以$cmd开头并添加到yoursw中的两行，得到了相同的错误。