Microsoft SQL Server database ranks third in the relational database, second only to Oracle and MySQL database. when using it, it is inevitable to encounter various problems and warnnings. You may be dba or a developer, I hope this content can help you solve SQL Server error number 18840.

Error number: 18840

Severity level: 16

Event logged: Cannot locate database information in the article cache. Stop and restart SQL Server and the Log Reader Agent. If the problem persists, back up the publication database, and then contact Customer Support Services.