I was wondering if someone could help me with this. This is a quick representation of a much more complicated schema. I am looking to get this implementation which is part of a larger stored proc. …
Set MySQL timestamp to random time within past 24 hours
I have a timestamp column in my MySQL table. I’m wanting to set this timestamp to a random time within the past 24 hours for all rows in the table. I know I can update all the rows doing this: …
SQL query to get the latest price from the data?
I have this data in my Oracle table: In this table, I have multiple products with having product_id and price at a particular time. I want to write a SQL query to get latest price of each product …
Select data from specific row of grouped and joined table in MySQL
I have two tables, customers and orders which are inner joined. A customer can have several orders associated with them. In my selection, I then group by customers.id. I need to select the most recent …
How to read double signups for a class in two separate databases without subqueries? SQL
I am using MySQL for an intro to databases course. We are currently practicing using aggregations and joins to create new relevant columns. I have a class table that contains information about classes such as the class id, name, code, etc. I also have a ClassStudent table that shows all students that are sign…
How can I check if the time is more than an hour later?
So I have a database entry that update the date/time in yyyy-mm-dd hh:mm:ss. Now I want to check, if there is a space inbetween the the database and the actual time from 60 minutes. How can I do that? Example: Answer You can use something like this:
How do I utilize a WHERE clause with a MONEY data type?
So to keep it simple, I’m working on a problem that requires a simple case of utilizing the WHERE clause to bring back records that have the field (we’ll call it ‘tax’) equal to $0.00 So as per usual, I thought I could do: WHERE tax = 0; But I keep getting an error. And I’m prett…
With PostgreSQL how to determine the average completion time given two time stamps while accounting for nulls
In my PostgreSQL database I have an invitations table with the following fields: Invitations: id, created_at, completed_at (timestamp) I am working to write a PostgreSQL query that tells me the …
Keeps counting all the text values instead of me providing a criteria in SQL
I have very simple query, to count the number of Cause Cancel from the Decision column. It keeps counting all the text values in the column and not just cause cancel. Answer I think you want a WHERE clause not a HAVING clause:
Sum last two records including last record of a group
In SQL Server 2017, how do I sum the last two records and show the last record in a single query? Expected output: I tried using SUM with LAST_VALUE with ORDER BY Answer You can filter out rows by using the ROW_NUMBER() window function, as in: See SQL Fiddle.