Excel2016: Cannot query PostgresSQL database: Server certificate not accepted

Question

I want to import some data to Excel2016 from a postgresSQL table. I have tried it by clicking "new query" and selecting From Database -> From PostgresSQL Database:

But then I receive the following error:

Details: "TlsClientStream.ClientAlertException: CertificateUnknown: Server certificate was not accepted. Chain status: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider. . The specified hostname was not present in the certificate. at TlsClientStream.TlsClientStream.ParseCertificateMessage(Byte[] buf, Int32& pos) at TlsClientStream.TlsClientStream.TraverseHandshakeMessages() at TlsClientStream.TlsClientStream.GetInitialHandshakeMessages(Boolean allowApplicationData) at TlsClientStream.TlsClientStream.PerformInitialHandshake(String hostName, X509CertificateCollection clientCertificates, RemoteCertificateValidationCallback remoteCertificateValidationCallback, Boolean checkCertificateRevocation)"

Any suggestions on how to solve this? Thank you so much in advance!

Answer 1

此错误表示正在建立与PostgreSQL db的连接，在此连接中客户端无法验证服务器的证书。仅当Excel用于连接到PostgreSQL（npgsql）的库中的“信任服务器证书”设置为FALSE时，才会发生此错误。

可以通过以下几种方式来解决此问题，按照我建议尝试的顺序：

1. 如果Excel中隐藏了一个选项（可能位于高级选项或类似选项下），则将“信任服务器证书”参数设置为True，则您的连接将开始工作。如果允许您指定整个连接字符串，那么也可以在连接字符串中完成。

2. 数据库应该在数据库的postgresql.conf文件中列出的SSL证书中具有公共密钥。如果您（或您的数据库管理员）可以获取该公钥并将其添加到您的计算机中（说明会因操作系统而异）。

Answer 2

我终于找到了解决我问题的方法。 您可以做的是：

1. 从here

安装当前的postgresql驱动程序

2. 遵循此video

中的说明

这样，您可以通过ODBC连接到您的postgreSQL数据库。