Use parameters inside string

[VajiraPrabuddhaka]

How can I use these parameters inside a string?

For example I have the following line in my template

"path": "/v2/datasets/@{encodeURIComponent(encodeURIComponent(parameters('sql_2_server')))},@{encodeURIComponent(encodeURIComponent(parameters('sql_2_database')))}/query/sql"

As I have tried, I want to pass two parameters sql_2_server and sql_2_database inside this.

What's the syntax for this??