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