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specifies that the rows will be ordered first by the value of Country. The default sort order can be changed using the following PRAGMA statements. The results shown appear to be in the order specified. SELECT FROM test ORDER BY type ASC, CAST (ranking as SIGNED)IF (type 1, 1, -1) ASC SELECT FROM test ORDER BY type ASC, IF (type 1, ranking, -ranking) ASC. Prior to 0.8.0, DuckDB sorted using ASC NULLS FIRST. Since ranking is a VARCHAR column, you would need to to convert it to a number to use this technique. Note that this was a breaking change in version 0.8.0. This is identical to the default sort order of PostgreSQL. Combined with the LIMIT 1, the query returns a single record in the result. the values are sorted in ascending order and null values are placed last. specifies the results in descending order. Note that ALL may not be used in combination with other expressions in the ORDER BY clause - it must be by itself.īy default if no modifiers are provided, DuckDB sorts ASC NULLS LAST, i.e. Here, we order by the ArtistName field in. If you dont add anything, it will use ascending. The direction of this sort may be modified using either ORDER BY ALL ASC or ORDER BY ALL DESC and/or NULLS FIRST or NULLS LAST. You can add ASC for ascending order, or DESC for descending order. The ALL keyword indicates that the output should be sorted by every column in order from left to right.

ORDER BY Note that it is 1-indexed), or the keyword ALL.Įach expression can optionally be followed by an order modifier ( ASC or DESC, default is ASC), and/or a NULL order modifier ( NULLS FIRST or NULLS LAST, default is NULLS LAST). Unless you specify an order with an ORDER BY clause in your SELECT. The expressions may begin with either an arbitrary scalar expression (which could be a column name), a column position number (Ex: 1. Given a table Employee having columns empName and empId, what will be the result of the SQL query below select empName from Employee order by 2 asc. The ORDER BY clause may contain one or more expressions, separated by commas.Īn error will be thrown if no expressions are included, since the ORDER BY clause should be removed in that situation. In addition, every order clause can specify whether NULL values should be moved to the beginning or to the end.

The ORDER BY clause sorts the rows on the sorting criteria in either ascending or descending order. Logically it is applied near the very end of the query (just prior to LIMIT or OFFSET, if present).