Write a query to display all the 'bills' with 'meter' details. Display the records in ascending order based on meter number.Note:1. Display all the columns of bill and meter table2. Use Joins3. Tables involved bill and meter4. Order by is mandatory5. Compare your executed result with the sample output given below.Sample output: [Only few records are shown here]ID METER_ID MONTH YEAR DUE_DATE TOTAL_UNITS PAYABLE_AMOUNT IS_PAYED PAYMENT_D FINE_AMOUNT ID METER_NUMBER BUILDING_ID39 26 8 2017 01-SEP-17 20700 724500 1 14-SEP-17 72450 26 SG190123 2614 10 10 2017 01-NOV-17 750 16875 1 09-NOV-17 1687.5 10 SG198329 10
Question
Write a query to display all the 'bills' with 'meter' details. Display the records in ascending order based on meter number.Note:1. Display all the columns of bill and meter table2. Use Joins3. Tables involved bill and meter4. Order by is mandatory5. Compare your executed result with the sample output given below.Sample output: [Only few records are shown here]ID METER_ID MONTH YEAR DUE_DATE TOTAL_UNITS PAYABLE_AMOUNT IS_PAYED PAYMENT_D FINE_AMOUNT ID METER_NUMBER BUILDING_ID39 26 8 2017 01-SEP-17 20700 724500 1 14-SEP-17 72450 26 SG190123 2614 10 10 2017 01-NOV-17 750 16875 1 09-NOV-17 1687.5 10 SG198329 10
Solution
The SQL query to display all the 'bills' with 'meter' details in ascending order based on meter number would look like this:
SELECT *
FROM bill
JOIN meter
ON bill.METER_ID = meter.ID
ORDER BY meter.METER_NUMBER ASC;
Here's a step-by-step breakdown of the query:
-
SELECT *- This selects all columns from the tables we're going to mention next. -
FROM bill- This specifies the first table we're pulling data from, which is the 'bill' table. -
JOIN meter- This is the SQL JOIN clause, which combines rows from two or more tables based on a related column between them. In this case, we're joining the 'bill' table with the 'meter' table. -
ON bill.METER_ID = meter.ID- This is the condition that must be met for the rows to be combined. We're saying that the 'METER_ID' column in the 'bill' table must be equal to the 'ID' column in the 'meter' table. -
ORDER BY meter.METER_NUMBER ASC;- This sorts the resulting records in ascending order ('ASC') based on the 'METER_NUMBER' column in the 'meter' table. If you wanted to sort the records in descending order, you would use 'DESC' instead of 'ASC'.
Please note that this is a basic JOIN query and assumes that 'METER_ID' in the 'bill' table and 'ID' in the 'meter' table are related, and that 'METER_NUMBER' in the 'meter' table is a numeric field. If your database schema is different, you may need to adjust the query accordingly.
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