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1.Suppose you are given a dataset that consists of a random sample of tasters, on which the following variables were obtained: (y) Zpref = taste preference for green beans store
Designing the fields in the data base The following are the considerations one has to remain in mind while designing the fields in the data base. Coding, compression, en
In Database software have only pure security or some dis secured by administrator?
need to get answer for questions 3&4 on this page in part 1
What is persistency? Persistency ensures which data is stored and that after the object is no longer available (program stops running) the data will be available to other users
Example- Search the salary of employees who are not 'ANALYST' but get a salary below than or equal to any people employed as 'ANALYST'. SELECT EMPNO, ENAME, JOB, SAL FROMEMP
WHY SHOULD NULL IN A RELATION BE AVOID AS possible?
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 entity in database system?
Databases and data warehouses both are databases and both contains number of rows and columns of tables containing data. Data warehouse is really different from databases because d
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