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Difference between SQL and SQL*Plus SQL SQL*Plus SQL is a language SQL *Plus is an environment It is bas
read-set(T) : Each data items that are read by a transaction T Timestamps : for all transaction T, the start-time and the end time are reserved for all the three phases.
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
which component of DBMS can be embedded in a program? The data manipulation language (DML) is a component which is embedded in a program.
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
What is SQL, and why is it important? SQL stands for Structured Query Language, and is the most significant data processing language in use today. It is not a complete programm
explain in details about one to one binary relationship
What are the different integrity constraints in RDBMS? The various integrity constraints in RDBMS are as: Primary Key: primary key is a grouping of one or more attributes
Define Forms Based Interfaces? Forms-Based Interfaces - A forms-based interface display a form to each user. Forms are commonly designed and programmed for naive users and inte
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