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Define- relational algebra.
The relational algebra is a procedural query language. It having of a set of operations that take one or two relation as input and make a new relation as output.
how to write a in a text and load it on mysql
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
The Conceptual Level or Global level The conceptual level presents a logical view of the complete database as a unified whole. It permits the user to bring all the data in th
What are the time stamps associated with each data item? W-timestamp (Q) denotes the largest time stamp if any transaction that implemented WRITE (Q) successfully. R-timesta
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
Differentiate between a unique key and a primary key. - By default, clustered index on column are created by primary key while nonclustered index are created by unique key.
Which is a legal expression in SQL? SELECT NAME FROM EMPLOYEE is a legal expression in SQL.
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This project will involve designing and creating a database for an organization. In the design of a database, there is no single "perfect" design. So your database design may not
entity relationship diagram about finance
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