Advantage of SQL

RAID RAID refers to redundancy array of the independent disk. It is a technology which is used to connect multiple secondary storage…

SQL Datatype SQL Datatype is used to define the values that a column can contain. Every column is required to have a…

Third Normal Form (3NF) A relation will be in 3NF if it is in 2NF and not contain any transitive partial dependency.…

Recoverability of Schedule Sometimes a transaction may not execute completely due to a software issue, system crash or hardware failure. In that…

SQL DELETE Statement The SQL DELETE statement is used to delete rows from a table. Generally, DELETE statement removes one or more…

Thomas write Rule Thomas Write Rule provides the guarantee of serializability order for the protocol. It improves the Basic Timestamp Ordering Algorithm.…

Recovery with Concurrent Transaction Whenever more than one transaction is being executed, then the interleaved of logs occur. During recovery, it would…

SQL Index Indexes are special lookup tables. It is used to retrieve data from the database very fast. An Index is used…

Three schema Architecture The three schema architecture is also called ANSI/SPARC architecture or three-level architecture. This framework is used to describe the…

Reduction of ER diagram to Table The database can be represented using the notations, and these notations can be reduced to a…