Latest Answer : The related columns of the tables in a cluster are called the cluster key. The cluster key is indexed so that rows of the cluster can be retrieved with a minimum amount of I/O. ...
Latest Answer : An index cluster uses an index to maintain data within the cluster. The structure of a cluster index is similar to a normal index. Although a normal index does not store NULL key values, and index cluster can store it. And, a cluster index ...
Latest Answer : A hash cluster uses a hash algorithm, which could either be system generated or user defined, to calculate the location of a row, both for retreival and for DML. ...
Latest Answer : hash cluster --> preallocated based on number of keys and key size. index cluster --> not preallocated in both cases, you want to get the key size (amount of data associated with a given key) as good as possible, but with hash clusters ...
Group of tables physically stored together because they share common columns and are often used together is called Cluster.
Latest Answer : Yes that is true, For creating cluster we first create the cluster via index/hash, then we all the tables in the cluster. ...
The related columns of the tables are called the cluster key. The cluster key is indexed using a cluster index and its value is stored only once for multiple tables in the cluster.
