Fix syntax issue

src/data/question-groups/javascript/content/function-scope.md

@@ -2,21 +2,14 @@ Function scope refers to the scope of variables defined within a function. You c
 
 ```javascript
 function myStudyPlan() { 
+  var studyPlanOne = "Top JavaScript interview questions for web developers";
+  let studyPlanTwo = "Top JavaScript interview questions for web developers";
+  const studyPlanThree = "Top JavaScript interview questions for web developers"; 
 
-var studyPlanOne = "Top JavaScript interview questions for web developers";
-
-let studyPlanTwo = "Top JavaScript interview questions for web developers";
-
-const studyPlanThree = "Top JavaScript interview questions for web developers"; 
-
-
-
-console.log(studyPlanOne); 
-
-console.log(studyPlanTwo);  
-
-console.log(studyPlanThree); 
-
+  console.log(studyPlanOne); 
+  console.log(studyPlanTwo);  
+  console.log(studyPlanThree); 
 } 
 
-myStudyPlan(); // Calls the function 
+myStudyPlan(); // Calls the function 
+```

src/data/question-groups/sql/content/where-vs-having.md

@@ -0,0 +1,32 @@
+You use **WHERE** for filtering rows before applying any grouping or aggregation. 
+The code snippet below illustrates the use of **WHERE**. It filters the `Users` table for rows where the `Age` is greater than 18. 
+
+```sql
+SELECT * FROM Users
+WHERE Age > 18;
+```
+
+The result of the query is similar to the table below.
+
+| userId | firstName | lastName | age |
+| ------ | --------- | -------- | --- |
+| 1      | John      | Doe      | 30  |
+| 2      | Jane      | Don      | 31  |
+| 3      | Will      | Liam     | 25  |
+| 4      | Wade      | Great    | 32  |
+| 5      | Peter     | Smith    | 27  |
+
+On the other hand, you use **HAVING** to filter groups after performing grouping and aggregation. You apply it to the result of aggregate functions, and it is mostly used with the **GROUP BY** clause.
+
+```sql
+SELECT FirstName, Age FROM Users
+GROUP BY FirstName, Age
+HAVING Age > 30;
+```
+
+The code above selects the `FirstName` and `Age` columns, then groups by the `FirstName` and `Age`, and finally gets entries with age greater than 30. The result of the query looks like this:
+
+| firstName | age |
+| --------- | --- |
+| Wade      | 32  |
+| Jane      | 31  |