Mysql order by double

I got a MySQL tablw which will store the contest participant informations. I would like to double sort my user list. Is this possible within one MySQL query? Sort by activity Sort by ID For example: Jack Active Jill Active Jens.

I have a script that I am pulling data from a MySQL db. Ok, here is a brief-overview. In this example, the ORDER BY clause sorts the result set by the last name in descending order first and then sorts the sorted result set by the first name in ascending order to produce the final result set. C) Using MySQL ORDER BY to sort a result set by an expression example. See the following orderdetails table from the sample database.

La commande ORDER BY permet de trier les lignes dans un résultat d’une requête SQL. Il est possible de trier les données sur une ou plusieurs colonnes, par ordre. I have problem with my query when I was trying to convert the varchar field to double (numeric). I have this sql statement: SELECT fullName, CAST(totalBal as numeric(2) FROM client_info ORDER BY totalBal DESC Actually I want to display the values of totalBal in descending order. But since that field is in varchar, the et is sometimes.

Das Ergebnis soll also abhängig von der Spalte „name“ aufsteigend (ASC) sortiert werden. This MySQL tutorial explains how to use the MySQL ORDER BY clause with syntax and examples. The MySQL ORDER BY clause is used to sort the records in your result set.

MySQL performs rounding when storing values, so if you insert 999. FLOAT(4) column, the approximate result is 999. FLOAT(M,D) and DOUBLE (M,D) syntax is deprecated and support for it will be removed in a future MySQL version. ORDER BY NULL at the end to suppress implicit sorting (as was done previously) is no longer necessary. However, query may differ from previous MySQL versions.

In some cases, MySQL may use an index to satisfy an ORDER BY clause and avoid the extra sorting involved in performing a filesort operation. The index may also be used even if the ORDER BY does not match the index exactly, as long as all unused portions of the index and all extra ORDER BY columns are constants in the WHERE clause. This tutorial shows you how to use MySQL CAST function to convert a value of any type into a value with a specified type.

Summary: in this tutorial, you will learn how to use the MySQL DISTINCT clause in the SELECT statement to eliminate duplicate rows in a result set. Introduction to MySQL DISTINCT clause. When querying data from a table, you may get duplicate rows. In order to remove these duplicate rows, you use the DISTINCT clause in the SELECT statement.

Return the thir fourth, and fifth records sorted in descending order on the commission field? Explicit evaluation order : 48. Display all products - including those with no orders: 50. If ORDER BY appears without LIMIT in a SELECT, it is optimized away because it will have no effect anyway. To use an ORDER BY or LIMIT clause to sort or limit the entire UNION result, parenthesize the individual SELECT statements and place the ORDER BY or LIMIT after the last one.

If you read the MySQL manual you might have seen the ORDER BY RAND () to randomize the the rows and using the LIMIT to just take one of the rows. Ask Question Asked years, months ago. Active years, months ago. Die Werte bei DOUBLE sind gerundet und mathematisch betrachtet ungenau.

Wer exakte Zahlen braucht, schaut bitte in die Dokumentation. Order by and then Concat. Die hier notierten Angaben beziehen sich auf die Version 5. Ich bitte dies zu beachten.

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