Tag:database engine

  • Mongodb sharding do not reuse the deleted namespace


    Server-17397: dropping a database or collection in a sharded cluster may not fully succeed is a very difficult problem in mongodb. If the deletion of a library or collection is not completed successfully, and a new collection with the same name is created, it may lead to the problem of reading the data of the […]

  • Detailed Introduction of SQL SERVER 2008 Database Engine


    The database engine component of SQL Server is the core service for storing, processing data and ensuring data security. The database engine provides controlled access and fast transaction processing to meet the requirements of highly demanding and data-intensive applications in the enterprise.SQL Server supports up to 50 database engine instances on the same computer. For […]