Question

我有我的方法（除非我做了一些愚蠢的事情）昨天完美地工作导出到csv。但是，今天我不断得到这个错误：

异常通话＆＃34;填写＆＃34;用＆＃34; 1＆＃34;参数：＆＃34; ExecuteReader：CommandText属性尚未初始化＆＃34;



$ rowCount时= $ 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()

Answer 1

尝试使用查询和连接创建SqlDataAdaper（并删除cmd）。

示例：

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

Answer 2

我会检查你的$ server和$ database变量。我只是对我自己的SQL服务器运行你的脚本，它对我来说很好。

编辑：

这是我跑的：

$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"

Powershell导出为CSV

2 个答案: