What is the difference between a column constraint and a table constraint?
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What is the difference between a column constraint and a table constraint?
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- A Column spanner in a table should describe which of the following?An index is automatically created for a FOREIGN KEY constraint. Select one: a. True b. FalseDomain Constraints means violations in size only Select one: O True O False Key constraint means violation when the primary key value is repeated Select one: O True O False
- Task 3: The Car Maintenance team wants to insert and store the following maintenance types to the MAINTENANCE_TYPES table: ID: 1; Description: Tire Change; Price: 50 ID: 2; Description; Oil Change; Price: 45 ID: 3; Description; Full Cleaning; Price: 100 ID: 4; Description; Gas Pump Change; Price: 145 SQL Database Add the four maintenance types to the MAINTENANCE_TYPES table Test Query SELECT * FROM MAINTENANCE_TYPES Expected Results MAINTENANCE_TYPE_ID MAINTENANCE_TYPE_DESCRIPTION MAINTENANCE_PRICE 1 Tire Change 50 2 Oil Change 45 3 Full Cleaning 100 4 Gas Pump Change 145The database contains a Horse table, with columns: ID integer, primary key Registered Name variable-length string. The database contains a Student table, with columns: • ID integer, primary key First Name - variable-length string LastName variable-length string Write a SQL Query to create a Schedule table, with columns: HorseID - integer with range 0 to 65535, not NULL • Student ID integer with range 0 to 65535 Lesson DateTime - date/time, not NULL (HorseID, Lesson DateTime) is the primary key Also, create the following foreign key constraints on Schedule columns: HorseID references Horse. When an ID is deleted from Horse matching Lesson Schedule rows are deleted. Student ID references Student. When an ID is deleted from Student, matching Student ID 's are set to NULL).What happens when a constraint is followed? Unique I Primary Key (ii), Default (iii), and Check (iv) Unique I Primary Key (ii), Default (iii), and Check (iv)
- 1-Write the syntax to insert into a relational table called students the address column references an object table called addresses that was created using an address_type. Other columns exist in the students table, but you are only inserting into the ones below. Aliases used should be the first letter of the table name, eg students would be s, addresses would be a Relational Table Name students attribute student_id attribute surname attribute addressquestion 8 please use the picture below to answer the following question Write a SQL statement to modify the Position table in order to define a constraint to ensure that the column position receives only values 'Sales Rep' or 'Manager'.Write advantage and disadvantage of a query