Powershell導出為CSV

Question

我有我的方法（除非我做過一些愚蠢的方法），昨日可以完美地導出到csv。 但是，今天我仍然得到這個錯誤：

帶有“ 1”參數的調用“填充”的異常：“ ExecuteReader：CommandText屬性尚未初始化”

• $ rowCount時= $ SqlAdapter.Fill（$ DT）
• ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  • CategoryInfo：未指定：（:) []，MethodInvocationException
  • FullyQualifiedErrorId：InvalidOperationException

這是我的語法：

$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()

Answer 1

嘗試使用查詢和連接來創建SqlDataAdaper（並刪除cmd）。

例：

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

Answer 2

我將檢查您的$ server和$ database變量。 我只是在我自己的SQL服務器上運行了您的腳本，它對我來說就很好了。

編輯 ：

這是我運行的內容：

$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()

這就是我在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"