Connect to remote PostgreSql database using Powershell

问题

I'm trying to connect to a remote PostgreSql database using powershell. This is my first time using powershell so I'm sorry if this is a noob question. This is my Code:

$DBConnectionString = "Driver={PostgreSQL UNICODE}:Server=$MyServer;Port=$MyPort;Database=$MyDB;Uid=$MyUid;Pwd=$MyPass;"
$DBConn = New-Object System.Data.Odbc.OdbcConnection;
$DBConn.ConnectionString = $DBConnectionString;
$DBConn.Open();
$DBCmd = $DBConn.CreateCommand();
$DBCmd.CommandText = "SELECT * FROM mytable;";
$DBCmd.ExecuteReader();
$DBConn.Close();

When I run this I get "Exception Calling "Open" with "0" argument(s): ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified". I've downloaded and installed the pgsqlodbc driver but I'm still getting this error. Does anyone have any ideas how I could fix this? I have searched the internet and I'm really not getting anywhere at this point.

Thanks.

回答1:

Check if the DSN exists in ODBC data source. If not you have to create one going to 'Control Panel', 'Admin. Tools', 'Data Sources (ODBC)'. Then select 'Add User DSN'- Select the PostgreSQL driver, and fill in your server and database details. Test connection to check is all ok!

回答2:

Consult: https://odbc.postgresql.org/
Download: https://www.postgresql.org/ftp/odbc/versions/msi/

Data sources (ODBC) on Windows: Start → Search → odbc → User DSN → Add/Configure

Example :

$MyServer = "<ip>"
$MyPort  = "5432"
$MyDB = "<database>"
$MyUid = "<user>"
$MyPass = "<pass>"

$DBConnectionString = "Driver={PostgreSQL UNICODE(x64)};Server=$MyServer;Port=$MyPort;Database=$MyDB;Uid=$MyUid;Pwd=$MyPass;"
$DBConn = New-Object System.Data.Odbc.OdbcConnection;
$DBConn.ConnectionString = $DBConnectionString;
$DBConn.Open();
$DBCmd = $DBConn.CreateCommand();
$DBCmd.CommandText = "SELECT * FROM tb_module;";
$DBCmd.ExecuteReader();
$DBConn.Close();

回答3:

I found the problem, I thought the Postgresql ODBC driver was installed, but it wasn't. I finally got it to work after finding this site: http://code.google.com/p/visionmap/wiki/psqlODBC Then I followed the instructions above. it works.

Thanks for all the help.

回答4:

You actually have a typo in your connection string after Driver declaration. There is a double colon instead of a semicolon :)

Wrong: {PostgreSQL UNICODE} : Server

Correct: {PostgreSQL UNICODE} ; Server

来源：https://stackoverflow.com/questions/9217650/connect-to-remote-postgresql-database-using-powershell

标签

postgresql

powershell

odbc