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9/9/2018CSCI 403 Database Management 8 Constraints, keys, indexesRestrictions on tablesCONSTRAINTS2Types of ConstraintsImplicit Constraints Implicit (model based) Explicit (schema based) ApplicationbasedImplied

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How to fill out constraints and keys in

01

Identify the entities in your database schema that need constraints and keys.

02

Determine the type of constraints needed for each entity such as primary key, foreign key, unique key, etc.

03

Define the constraints and keys using SQL commands like ALTER TABLE or CREATE TABLE.

04

Ensure that the constraints are enforceable and meet the required data integrity rules.

05

Test the constraints by inserting, updating, and deleting data to verify that they work as expected.

Who needs constraints and keys in?

01

Database administrators who want to ensure data integrity and consistency in the database.

02

Developers who are working on complex database systems that require relationships between tables.

03

Users who want to prevent data duplication and enforce business rules in the database.

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What is constraints and keys in?

Constraints and keys refer to the rules and identifiers that are used to enforce data integrity in a database.

Who is required to file constraints and keys in?

Database administrators and developers are typically responsible for defining and implementing constraints and keys in a database.

How to fill out constraints and keys in?

Constraints and keys are typically defined during the database design phase using SQL commands or GUI tools provided by the database management system.

What is the purpose of constraints and keys in?

Constraints and keys help ensure data accuracy, consistency, and integrity by enforcing rules such as uniqueness, referential integrity, and data type validation.

What information must be reported on constraints and keys in?

Information such as table columns, data types, relationships, and constraints must be defined when setting up constraints and keys in a database.

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