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What Is Sql? Structured Query Language (SQL) is a standard query language. It is usually used with all relational databases for data manipulation and definition. All the re
List and explain the memory constructs of the Oracle 12c databases?
In a job interview with a branch manager of a bank that operates in multiple Canadian provinces and the Yukon, you learn that all of the information is captured in real time in a s
Describe integrity constraints? Integrity Constraints - A database is just as excellent as the information stored in it, and a DBMS must therefore help avoid the entry of inc
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
write-set(T): Each data items that are written by a transaction T
Improved availability: The data in a distributed system may be replicated so that it is at more than one site. Thus, the failure of a node or a communication link does not necessar
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
What is Asterisk in SQL? Asterisk (*): In SQL, the columns for all the tables and views in the FROM clause will be displayed.
Define access time. Access time is the time from when a read or write request is issued to when data transfer starts.
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