Why is Objectivity/DB faster than an RDBMS?
Objectivity/DB is faster than an RDBMS in many instances. It may have equivalent, or even slightly worse, performance in some cases. It is almost always faster than an RDBMS in the following cases: • Complex Relationships If there are a lot of many-to-many relationships, tree structures or network (graph) structures then Objectivity/DB will traverse those relationships much faster than a relational database. If an object is linked to N other objects then an RDBMS will probably perform 2*N B-Tree [index] lookups and 2*N logical reads (into the rows of the JOIN and the target tables) to retrieve information from those other “objects”. Objectivity/DB will do 1 B-Tree lookup and N+1 logical reads. • Complex Data If the data has multiple varying length components, particularly multi-dimensional arrays, arrays of structs or binary streams then Objectivity/DB has a very powerful Storage Manager that is built to manipulate those kinds of data.
Objectivity/DB is faster than an RDBMS in many instances. It may have equivalent, or even slightly worse, performance in some cases. It is almost always faster than an RDBMS in the following cases: • Complex Relationships If there are a lot of many-to-many relationships, tree structures or network (graph) structures then Objectivity/DB will traverse those relationships much faster than a relational database. If an object is linked to N other objects then an RDBMS will probably perform 2*N B-Tree [index] lookups and 2*N logical reads (into the rows of the JOIN and the target tables) to retrieve information from those other “objects”. Objectivity/DB will do 1 B-Tree lookup and N+1 logical reads. • Complex Data If the data has multiple varying length components, particularly multi-dimensional arrays, arrays of structs or binary streams then Objectivity/DB has a very powerful Storage Manager that is built to manipulate those kinds of data. Relational databases are designed to manipulate da
