Updates dbms notes.

This commit is contained in:
Tanmay 2022-09-10 15:55:44 +01:00
parent 34836a9bcf
commit 3ef8e9b5b5

View File

@ -224,7 +224,13 @@ SELECT * FROM USERS WHERE age > 25;
```
**Set operation - Subset**
![Set operation](media/subset.png)
<p align="center">
<img
src="../media/subset.png"
alt="Set operation - Subset"
width="500"
/>
</p>
**SQL Query**
```sql
@ -232,7 +238,13 @@ SELECT * FROM USERS WHERE age > 25 and age < 30;
```
**Set operation - Subset**
![Set operation](media/subsets-and.png)
<p align="center">
<img
src="../media/subsets-and.png"
alt="Set operation - Subset + AND"
width="500"
/>
</p>
### Relational Model