What is the meaning of ORDER BY 1?

This: ORDER BY 1. …is known as an “Ordinal” – the number stands for the column based on the number of columns defined in the SELECT clause. In the query you provided, it means: ORDER BY A.PAYMENT_DATE. It’s not a recommended practice, because: It’s not obvious/explicit.

How do I sort by specific value in SQL?

In SQL ORDER BY clause, we need to define ascending or descending order in which result needs to be sorted.

1. ASC: We can specify ASC to sort the result in ascending order.
2. DESC: We can specify DESC to sort the result in descending order.

What does ORDER BY 2 mean in SQL?

SELECT first_name, last_name FROM sales.customers ORDER BY 1, 2; In this example, 1 means the first_name column and 2 means the last_name column. Using the ordinal positions of columns in the ORDER BY clause is considered as bad programming practice for a couple of reasons.

What is order by used for?

The ORDER BY statement in sql is used to sort the fetched data in either ascending or descending according to one or more columns. By default ORDER BY sorts the data in ascending order. We can use the keyword DESC to sort the data in descending order and the keyword ASC to sort in ascending order.

What does 1 mean in SQL?

It means ALWAYS TRUE so it won’t have any filtering impact on your query. Query planner will probably ignore that clause. It’s usually used when you build a client side query by concatenating filtering conditions.

Can we use 2 ORDER BY in SQL?

However we can use multiple columns in ORDER BY clause. When multiple columns are used in ORDER BY, first the rows will be sorted based on the first column and then by the second column.

What is the use of 1 1 in SQL?

The 1=1 is ignored by always all rdbms. There is no tradeoff executing a query with WHERE 1=1. Building dynamic WHERE conditions, like ORM frameworks or other do very often, it is easier to append the real where conditions because you avoid checking for prepending an AND to the current condition.

How do you do multiple sorting?

Here are the steps to do it:

1. Select the column that you want to be sorted last (in this case, select the Sales data first – C1:C13).
2. Click on the Data tab.
3. In the Sort and Filter group, click on the Z to A sorting icon.
4. The above step would make a Sort Warning dialog box pop-up.
5. Click Sort.
6. Select the Region column.

Can we use case in ORDER BY clause?

We can use Case statement with order by clause as well. In SQL, we use Order By clause to sort results in ascending or descending order. Suppose in a further example; we want to sort result in the following method. We can define this condition with a combination of Order by and Case statement.

Can you ORDER BY 2 columns in SQL?

Discussion: 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 . This clause comes at the end of your SQL query. Then, after a comma, add the second column (in our example, last_name ).

What is meant by ORDER BY?

An ORDER BY clause in SQL specifies that a SQL SELECT statement returns a result set with the rows being sorted by the values of one or more columns. ORDER BY is the only way to sort the rows in the result set. Without this clause, the relational database system may return the rows in any order.

When to use order by in SQL query?

In case the SELECT statement contains a WHERE clause, the ORDER BY clause must appear after the WHERE clause. To sort the result set, you specify the column in which you want to sort and the kind of the sort order: If you don’t specify the sort order, the database system typically sorts the result set in ascending order ( ASC) by default.

How to sort by name in descending order?

To sort customer by name alphabetically in descending order, you explicitly use DESC after the column name in the ORDER BY clause as follows: The following picture shows the result that customers sorted by names alphabetically in descending order: To sort multiple columns, you separate each column in the ORDER BY clause by a comma.

How to sort values by order in MySQL?

First, sort the result set by the values in the column1 in ascending order. Then, sort the sorted result set by the values in the column2 in descending order. Note that the order of values in the column1 will not change in this step, only the order of values in the column2 changes.

How to sort from highest value to lowest value?

DESC sorts from highest value to lowest value. ASC is the default sort order. Null values are treated as the lowest possible values. OFFSET { integer_constant | offset_row_count_expression } { ROW | ROWS } Specifies the number of rows to skip before it starts to return rows from the query expression.