Most of the time, the ORDER BY function is used when using the aggregate. The data can be ordered either in ascending or descending way. It returns the sorted and ordered data based on a certain column (s) as the criteria to ORDER the data. By default, ORDER BY without any additional specifier sorts in ascending order (equivalent to using the ASC keyword explicitly). ORDER BY clause is one such clause that helps in getting the ordered data from the raw resultset. In our query, we sort by the last name of the customer. In our example, we first sorted the result by salary in descending order (higher salaries to lower ones) and then by last name in ascending order within those already sorted records. After the ORDER BY keyword, you name the column by which the records should be sorted. db.each('SELECT values ORDER BY timestamp DESC LIMIT 200') you are sorting strings. If you want to use descending order, put the DESC keyword after the appropriate column (in the example, we used descending order for the salary column). If you want to use ascending (low to high) order, you can use the ASC keyword this keyword is optional, though, as that is the default order when none is specified. You can modify the sorting order (ascending or descending) separately for each column. Then, after a comma, add the second column (in our example, last_name). This clause comes at the end of your SQL query.Īfter the ORDER BY keyword, add the name of the column by which you’d like to sort records first (in our example, salary). ) SELECT FROM Employees ORDER BY ISNULL (DepartmentId0,1), DepartmentId Any non-null number becomes 0, and nulls become 1, which sorts nulls last because 0 < 1. If you sort your output in ascending order by either adding the ASC keyword or by default (i.e. If you want to select records from a table but would like to see them sorted according to two columns, you can do so with ORDER BY. SQLite does not have an strptime or other similar text to date function, so you will have to piece together the date in the right order while sorting: SELECT projectcreationdate FROM projects ORDER BY SUBSTR (projectcreationdate, 7, 4) SUBSTR (projectcreationdate, 4, 2) SUBSTR (projectcreationdate, 1, 2) Again, take a look at. If youre sorting by a numeric type you can do this: (Borrowing the schema from another answer. This query returns sorted records according to two columns: salary and last_name. Let’s display all information for each employee but sort the records according to salary in descending order first and then by last name in ascending order. Our database has a table named employee with the following columns: id, first_name, last_name, and salary. You need to display records from a given table sorted by two columns.
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