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What is transaction?
Collections of operations that form a single logical unit of work are known as transactions.
Explain Data Sublangauges ? Data sublanguage: In relational database theory, the term sublanguage, first used for this purpose through E. F. Codd in the year of 1970, refers t
Whst is logical schema ? Logical schema is the entire database.
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
What is DataWarehousing? Subject-oriented, meaning that the data in the database is organized so that all the data elements relating to the similar real-world event or object
State about the Tables- DBMS Data is stored in columns and rows (much like a spreadsheet -main difference is how data is organised). Every row in a table is known as a record
How Relational Calculus is different from Relational Algebra? What do understand by TRC queries and DRC queries? Ans: Relational calculus contain two calculi, the tuple relati
external view of DBMS in healthcare department?
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er diagtram for icici
define attribute inheritance with example?
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