The questions you've asked seem to be related to SQL queries. Here's how you can approach them:

1) To find the name of the driver who did not have an accident in 'Delhi', you would first need to identify the drivers who had an accident in 'Delhi', and then exclude them from the total list of drivers. However, the provided tables do not contain information about the location of the accident. If it did, the SQL query might look something like this:

```sql
SELECT name
FROM Person
WHERE SSN NOT IN (
SELECT SSN
FROM Accident
JOIN Person ON Accident.SSN = Person.SSN
WHERE city = 'Delhi'
)
```

2) To find the cars sold in 2006 and whose owners are from Vadodara, you can join the `Person` and `Car` tables on the `SSN` field and filter by `year` and `city`. Here's an example:

```sql
SELECT license_no, year, model
FROM Car
JOIN Person ON Car.SSN = Person.SSN
WHERE year = 2006 AND city = 'Vadodara'
```

3) To find out how many different models of car are used by Mr.abc, you can join the `Person` and `Car` tables on the `SSN` field and filter by `name`. Then, you can use the `COUNT DISTINCT` function to count the unique car models. Here's an example:

```sql
SELECT COUNT(DISTINCT model)
FROM Car
JOIN Person ON Car.SSN = Person.SSN
WHERE name = 'Mr.abc'
```

Please note that these queries are based on assumptions about your database schema and data, as the information provided in the question is not sufficient to write accurate queries.

Question

The questions you've asked seem to be related to SQL queries. Here's how you can approach them:

1) To find the name of the driver who did not have an accident in 'Delhi', you would first need to identify the drivers who had an accident in 'Delhi', and then exclude them from the total list of drivers. However, the provided tables do not contain information about the location of the accident. If it did, the SQL query might look something like this:

```sql
SELECT name 
FROM Person 
WHERE SSN NOT IN (
    SELECT SSN 
    FROM Accident 
    JOIN Person ON Accident.SSN = Person.SSN 
    WHERE city = 'Delhi'
)
```

2) To find the cars sold in 2006 and whose owners are from Vadodara, you can join the `Person` and `Car` tables on the `SSN` field and filter by `year` and `city`. Here's an example:

```sql
SELECT license_no, year, model 
FROM Car 
JOIN Person ON Car.SSN = Person.SSN 
WHERE year = 2006 AND city = 'Vadodara'
```

3) To find out how many different models of car are used by Mr.abc, you can join the `Person` and `Car` tables on the `SSN` field and filter by `name`. Then, you can use the `COUNT DISTINCT` function to count the unique car models. Here's an example:

```sql
SELECT COUNT(DISTINCT model) 
FROM Car 
JOIN Person ON Car.SSN = Person.SSN 
WHERE name = 'Mr.abc'
```

Please note that these queries are based on assumptions about your database schema and data, as the information provided in the question is not sufficient to write accurate queries.

Knowee AI · Accepted Answer