error while creating external database connection with mssql server

[Rajkumar V]

Bitbucket requires a case-sensitive database, but the target database is case-insensitive. For information about creating a database for use with Bitbucket, please refer to the Bitbucket documentation.

[Nic Brough -Adaptavist-]

Welcome to the community!

Do you have a question or something to talk about here?  Pasting error messages which explain what the problem is and suggest you read docs is not really going to get a conversation started. 

Have you tried connecting it to a case-sensitive database?  Or read the docs?