Question

I am trying to connect to SQL Server 2008 from Excel VBA using the connection string (ADODB.Connection).

"Driver={SQL Native Client};Data Source=" & Range("Svr").Value & ";Database=" & Range("DB").Value & ";Trusted_Connection=yes"

When I try to open the connection I get this error

Error (-2147467259) Description – [Microsoft][ODBC Driver Manager]
Data source name too long

Can some one please provide me a sample

Answer 1

I think the backslash in your connection string is causing your issues, try and escape it like so:

xxxxxxxxxxxx.xxx.xx.xxxxxxxx.xxx\\xxxx01xxx

Also, putting quotes around each value wouldn’t hurt:

"Driver={SQL Native Client};Data Source='" & Range("Svr").Value & "';Database='" & Range("DB").Value & "';Trusted_Connection=yes"

Based on this answer.