Question

match the command with its definition.
drop
select
revoke
insert
grant
update
deny
delete
alter
create
permanently deletes a database and its data
retrieves data from one or more tables based on specific criteria
creates a database or a table within a database
removes existing records from a table based on a condition
modifies an existing database’s structure (add/remove columns, change data types, etc)
changes existing data in a table’s records
explicitly prevents a user or role from performing certain actions, overriding granted permissions
permanently deletes a database and its data
removes previously granted permissions
adds new records (rows) into a table
gives a user or role specific permissions to perform actions on database objects

Explanation:

To solve this, we match each SQL command with its definition:

1. DROP: permanently deletes a database and its data
2. SELECT: retrieves data from one or more tables based on specific criteria
3. REVOKE: removes previously granted permissions
4. INSERT: adds new records (rows) into a table
5. GRANT: gives a user or role specific permissions to perform actions on database objects
6. UPDATE: changes existing data in a table’s records
7. DENY: explicitly prevents a user or role from performing certain actions, overriding granted permissions
8. DELETE: removes existing records from a table based on a condition
9. ALTER: modifies an existing database’s structure (add/remove columns, change data types, etc.)
10. CREATE: creates a database or a table within a database

If you need to present this as a table:

Command	Definition
SELECT	retrieves data from one or more tables based on specific criteria
REVOKE	removes previously granted permissions
INSERT	adds new records (rows) into a table
GRANT	gives a user or role specific permissions to perform actions on database objects
UPDATE	changes existing data in a table’s records
DENY	explicitly prevents a user or role from performing certain actions, overriding granted permissions
DELETE	removes existing records from a table based on a condition
ALTER	modifies an existing database’s structure (add/remove columns, change data types, etc.)
CREATE	creates a database or a table within a database

Answer:

To solve this, we match each SQL command with its definition:

1. DROP: permanently deletes a database and its data
2. SELECT: retrieves data from one or more tables based on specific criteria
3. REVOKE: removes previously granted permissions
4. INSERT: adds new records (rows) into a table
5. GRANT: gives a user or role specific permissions to perform actions on database objects
6. UPDATE: changes existing data in a table’s records
7. DENY: explicitly prevents a user or role from performing certain actions, overriding granted permissions
8. DELETE: removes existing records from a table based on a condition
9. ALTER: modifies an existing database’s structure (add/remove columns, change data types, etc.)
10. CREATE: creates a database or a table within a database

If you need to present this as a table:

Command	Definition
SELECT	retrieves data from one or more tables based on specific criteria
REVOKE	removes previously granted permissions
INSERT	adds new records (rows) into a table
GRANT	gives a user or role specific permissions to perform actions on database objects
UPDATE	changes existing data in a table’s records
DENY	explicitly prevents a user or role from performing certain actions, overriding granted permissions
DELETE	removes existing records from a table based on a condition
ALTER	modifies an existing database’s structure (add/remove columns, change data types, etc.)
CREATE	creates a database or a table within a database