To count each value only once, even if it appears multiple times, you should use the DISTINCT keyword in your SQL query. Here's how you can do it:

Step 1: Start with the SELECT keyword which is used to select data from a database.

Step 2: Use the COUNT() function. This function returns the number of rows that matches a specified criterion.

Step 3: Inside the COUNT() function, use the DISTINCT keyword. DISTINCT is used to remove duplicate values from the result set.

Step 4: After the DISTINCT keyword, specify the column name where you want to count the distinct values.

Step 5: Use the FROM keyword followed by the name of the table where the column exists.

Step 6: Use the WHERE clause to filter records and define the range of values you want to count.

Here's an example of how the SQL query might look:

```sql
SELECT COUNT(DISTINCT column_name)
FROM table_name
WHERE column_name BETWEEN value1 AND value2;
```

In this query, replace `column_name` with the name of the column you're interested in, `table_name` with the name of the table where this column exists, and `value1` and `value2` with the range of values you want to count.

Question

To count each value only once, even if it appears multiple times, you should use the DISTINCT keyword in your SQL query. Here's how you can do it:

Step 1: Start with the SELECT keyword which is used to select data from a database.

Step 2: Use the COUNT() function. This function returns the number of rows that matches a specified criterion.

Step 3: Inside the COUNT() function, use the DISTINCT keyword. DISTINCT is used to remove duplicate values from the result set.

Step 4: After the DISTINCT keyword, specify the column name where you want to count the distinct values.

Step 5: Use the FROM keyword followed by the name of the table where the column exists.

Step 6: Use the WHERE clause to filter records and define the range of values you want to count.

Here's an example of how the SQL query might look:

```sql
SELECT COUNT(DISTINCT column_name)
FROM table_name
WHERE column_name BETWEEN value1 AND value2;
```

In this query, replace `column_name` with the name of the column you're interested in, `table_name` with the name of the table where this column exists, and `value1` and `value2` with the range of values you want to count.

Knowee AI · Accepted Answer

To count each value only once, even if it appears multiple times, you should use the DISTINCT keyword in your SQL query. Here's how you can do it:

Step 1: Start with the SELECT keyword which is used to select data from a database.

Step 2: Use the COUNT() function. This function returns the number of rows that matches a specified criterion.

Step 3: Inside the COUNT() function, use the DISTINCT keyword. DISTINCT is used to remove duplicate values from the result set.

Step 4: After the DISTINCT keyword, specify the column name where you want to count the distinct values.

Step 5: Use the FROM keyword followed by the name of the table where the column exists.

Step 6: Use the WHERE clause to filter records and define the range of values you want to count.

Here's an example of how the SQL query might look:

```sql
SELECT COUNT(DISTINCT column_name)
FROM table_name
WHERE column_name BETWEEN value1 AND value2;
```

In this query, replace `column_name` with the name of the column you're interested in, `table_name` with the name of the table where this column exists, and `value1` and `value2` with the range of values you want to count.

Question 3You write a SQL query that will count values in a specified range. Which function should you include in your query to only count each value once, even if it appears multiple times?

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