Consider the following emp relation and rename it with your name:                                 emp_no ,  emp_name  , emp_grade , emp_salary ,    dept_no  , start_date Insert Some data in above table: apply truncate and drop command on the table to show the difference between both commands. Drop constraint from emp_no and consider deptno as primary key. Note: this question is from database subject

Q: Considering Vaccination Database, write queries to: Display the Subject CNIC, Name, Contact, Dose1…

A: The subjects who have been vaccinated different types in Dose1 and Dose2. For instance, subjects who…

Q: Using the Henry Books database,update the paperback field for the book titled Black Houseto Y. You…

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Q: What are the references to the main key in the same relation?

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Q: The first requirement: Using the SQL language, transform the following entity model into tables in…

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Q: Indicate all the functional dependencies and the normal form for each relation

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A: All lower case Underscore separator between root and suffix Foreign keys have the same name as…

Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

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Q: Write a database description for each of the relations shown, using SQL DDL (shorten, abbreviate, or…

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Q: Indicate all the functional dependencies and the normal form for each relation. Decompose your…

A: Indicate all the functional dependencies and the normal form for each relation. Decomposeyour…

Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

A: SQL: Database management is done using a programming language called SQL, or Structured Query…

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A: First check whether phone_id column exists in your customer, staff, and store table or not. If…

Q: One row in the PAT_ENC table represents one patient encounter. One row in the ORDER MED table…

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Q: ANSWER THE FOLLOWING QUESTIONS BASED ON THE GIVEN TABLE a) write the DDL statement to create the…

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Normalization

Normalization is the process of eliminating redundancy in a database by organizing the data into several smaller tables. The large tables are normalized (converted) into smaller tables by using normalization rules, so that a database administrator can easily handle them. It also eliminates insertion, deletion, and update anomalies.