Do we consider null values the same as that of blank space or zero?

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How rdbms is different from dbms?

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Single File Database: Develop a student record management program, which uses single file as its database. It is not supposed to create additional files at any part of the project and should never rewrite total content. It must be capable of storing 100000's of records. It should support variable length records to be added, deleted, modified, listed.

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1.If we have a Salary coloumn in Staff entity with this description the salary must be monetary and >=$35450.00, how we can write it in into schemain SQL? 2. If we have Weight and Marks in Assessment entity and the Weight has the description of this it must be Non-zero percentage. And also the Marks attribute stores the maximum possible raw mark for assessment (e.g., 30), while Weight stores of the weight of this assessment for the paper as a whole (e.g., 10%). If Marks is not specified, then Weight is used for both. How we can convert this into schema in SQL????

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What is meant by system analysis?

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Whats is an OLTP Database

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What are the types of database?

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What do you understand by fragmentation?

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What is a php database?

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How many types of database languages are?

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What is ordbms with example?

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What is a field in database?

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