Table of Contents
How do I arrange descending in SQL?
The SQL ORDER BY Keyword The ORDER BY keyword is used to sort the result-set in ascending or descending order. The ORDER BY keyword sorts the records in ascending order by default. To sort the records in descending order, use the DESC keyword.
How does ORDER BY work with NULL?
Ordering. When you order by a field that may contain NULL values, any NULLs are considered to have the lowest value. So ordering in DESC order will see the NULLs appearing last. To force NULLs to be regarded as highest values, one can add another column which has a higher value when the main field is NULL.
How do I sort SQL in Db2?
First, specify expression1 , expression2 , etc., that can be columns or expressions by which you want to sort the result set. Second, use ASC to sort the result set in ascending order (from low to high) and DESC to sort the result set in descending order (from high to low).
How do I sort NULL values?
How Are NULLs Sorted by Default?
- The SQL standard does not define the default ordering of NULLs.
- If you apply the ORDER BY clause to a column with NULLs, the NULL values will be placed either first or last in the result set.
- By default, PostgreSQL considers NULL values larger than any non-NULL value.
What is SQL DESC?
The DESC command is used to sort the data returned in descending order.
How do I sort SQL from newest to oldest?
If you’d like to see the latest date first and the earliest date last, you need to sort in descending order. Use the DESC keyword in this case. ORDER BY ExamDate DESC ; Note that in T-SQL, NULL s are displayed first when sorting in ascending order and last when sorting in descending order.
How do I sort NULL values first in SQL?
ASC clause will always place NULL values first. On MS SQL Server, the ORDER BY DESC clause will always place NULL values last.
What is the default ORDER BY in DB2?
DB2 – SQL Order By Keyword. To explicitly sort data retrieved using a SELECT statement, the ORDER BY clause is used. The ORDER BY keyword sorts the records in ascending order by default. To sort the records in descending order, use the DESC keyword.
How to sort values in the descending order but nulls come first?
To sort values in the descending order but with NULLs coming first, we can use the following query in MySQL: The query will result in the output being ordered by the year column in descending order. Here, the NULLs appear first – the same result we get with the NULLS FIRST option in SQLite. Using the IS (NOT) NULL operator.
What is the default order of null values in SQL?
If you specify the ORDER BY clause, NULL values by default are ordered as less than values that are not NULL. Using the ASC order, a NULL value comes before any non-NULL value; using DESC order, the NULL comes last. The NULLS FIRST keywords instruct the database server to put NULL values first in the sorted query results.
How do you use the ORDER BY clause in DB2?
Introduction to Db2 ORDER BY clause When you use the SELECT statement to query data from a table, the order of rows in the result set is unspecified. To sort the result set by values in one or more columns, you use the ORDER BY clause. The ORDER BY clause is an optional clause of the SELECT statement.
How do I sort a column in MySQL with nulls first?
To sort values in the descending order but with NULLs coming first, we can use the following query in MySQL: The query will result in the output being ordered by the year column in descending order. Here, the NULLs appear first – the same result we get with the NULLS FIRST option in SQLite.