我一直在努力解决从 Powershell 到 PostgreSQL 的数据库连接问题。我终于能够连接并插入到数据库中。现在我不知道如何从数据库选择中提取数据到变量中。
为了清楚起见，我不包括我的插入内容，但稍后会将其添加到此线程上，因为我知道它很难找到并且可能对某人有帮助。
所以这是我的代码：
# use existing 64 bit ODBC System DSN that we set up manually
$DBconn = New-Object -comobject ADODB.Connection
$DBconn.Open("PostgreSQL35W")
$theQuery = "select * from test1"
$theObject = $DBconn.Execute($theQuery) # $theObject is a System.__ComObject
$numRecords = $theObject.RecordCount
write-host "found $numRecords records" # getting -1
$theObject.MoveFirst() # throws no error
# $theValue = $theObject.DataMember # throws no error, but gives no result
$theValue = $theObject.Index[1] # throws "Cannot index into a null array"
write-host($theValue)