login role idlogin usemamelogin iduser passwordLoginuser iduser namerole iduser mobileUserHasRolesrole nameuser emailrole descper iduser addressPermissionper role idper nameper moduleManageupid nameupld idwp img idmed descupid img-idwp idmed typewall papersmediaupleadsupld typewp typewp descHasmed titlemed idupid descwp namemed nameupld dateimg descimg idimg typeYour task for this week is to create SQL query to develop a table for Image schemaalso add all the necessary constraints according to the given database schema.

Brief Introduction: This question is based on to give the query for the table creation in the…

Answered: Your task for this week is to create…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Implement a new independent entity phone in the Sakila database. Attributes and relationships are shown in the following diagram: The diagram uses Sakila naming conventions. Follow the Sakila conventions for your table and column names: All lower case Underscore separator between root and suffix Foreign keys have the same name as referenced primary key Write CREATE TABLE and ALTER TABLE statements that: Implement the entity as a new phone table. Implement the has relationships as foreign keys in the Sakila customer, staff, and store tables. Remove the existing phone column from the Sakila address table. Step 2 requires adding a foreign key constraint to an existing table. Ex: ALTER TABLE customer ADD FOREIGN KEY (phone_id) REFERENCES phone(phone_id) ON DELETE SET NULL ON UPDATE CASCADE; Specify data types as follows: phone_id, phone_number, and country_code have data type INT. phone_type has date type VARCHAR(12) and contains strings like 'Home', 'Mobile', and 'Other'. Apply…
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A concise explanation of the many reasons why the use of tables in database design is a good idea could be of some use. Would you mind providing a brief remark on the subject of NULL?
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please improe this writing: There is a big difference between time it takes to perform each of the queries. After adding primary key to each table, the time to perform each of the queries was faster than what it was before. Creating a primary key help identify unique data. Primary key in a table is a crucial column used in queries, optimized for fast performance with an associated index. The primary key index is the most efficient access path for a table. They are created after a table is created, optimizing search speed. Once constructed, indexes are internal structures that the user cannot actively access. If the internal query optimization procedure concludes that using an index will increase search efficiency, then it will be employed. When SQL queries are internally ready for execution, they automatically undergo optimization. The best way to run each query is determined by the optimization process, which may or may not include using a relevant index. Read and write speeds are…
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Your task for this week is to create SQL query to develop a table for Image schema also add all the necessary constraints according to the given database schema.