Latest Answer : Table Space : The table space is useful for storing the data in the
database. When a database is created two table spaces are created.
a) System Table Space : This data file stores
all the tables related to the system and ...
Latest Answer : No, it does not contain own data ...
Latest Answer : Block is the smallest unit of storage in the logical structure of the database where actual table rows are stored. ...
Latest Answer : The primary block size is defined by the Initiaization parameter DB_BLOCK_SIZE. ...
Latest Answer : A segment is a set of extents that contains all the data for a specific logical storage structure within a tablespace. For example, for each table, Oracle allocates one or more extents to form that table's data segment, and for each index, Oracle allocates ...
Latest Answer : Characteristics of a Data File :
- A Data file can be associated with only one tablespace.
- Once created, a datafile can be increased or decreased in size with RESIZE
command. Example: ALTER database datafile '/u03/oradata/dev01/users_02.dbf'
RESIZE ...
A deadlock is a condition where two or more users are waiting for data locked by each other. Oracle automatically detects a deadlock and resolves them by rolling back one of the statements involved in
Latest Answer : Deadlock occurs when two or more users are waiting for data locked by each other. When this happens, these users are stuck (deadly embraced) and cannot continue processing. Oracle automatically detects deadlocks and resolves them by rolling back ...
A database instance (Server) is a set of memory structure and background processes that access a set of database files. The process can be shared by all users. The
Latest Answer : Database instance(server) is the combination of memory structure and background process. It's a way to connect to the oracle database. ...
Multiple instances accessing the same database (Only In Multi-CPU environments)
Latest Answer : Very true---Multiple instances uses by single database files is called parallel server. in this condition database files act as a server and connected with differenet instances.But each instances can use database files in same time.So the database file ...
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. ...