```python
import random
def generate_unique_random(start, end, num):
unique_numbers = set()
while len(unique_numbers) < num:
random_number = random.randint(start, end)
unique_numbers.add(random_number)
return list(unique_numbers)
```
```python
import uuid
def generate_unique_string(length=10):
return str(uuid.uuid4())[:length]
```
```python
import hashlib
def generate_unique_id(data):
return hashlib.md5(data.encode()).hexdigest()
```
```python
from datetime import datetime
def generate_unique_datetime():
return datetime.now().strftime("%Y%m%d%H%M%S%f")
```
```python
def generate_unique_sequence():
with open("sequence.txt", "r+") as file:
current_number = int(file.read().strip()) + 1
file.seek(0)
file.write(str(current_number))
return current_number
```
