Mysql select specific value.
Using WHERE colorID=2 AND colorID=6 returns 0 rows.
Mysql select specific value. Inside a table, a column often contains many duplicate values; and sometimes you only want to list the different (distinct) values. This seems like a simple thing to query, but I am finding myself up against a wall. It allows you to specify which columns of data you want to retrieve, and optionally, you can apply filters to only get the data that meets specific conditions. MySQL resolves unqualified column or alias references in ORDER BY clauses by searching in the select_expr values, then in the columns of the tables in the FROM clause. You can select only particular rows from your table. Feb 12, 2024 · This tutorial explains how to use SELECT based on values returned from another SELECT statement in MySQL, including an example. For example, if you want to verify the change that you made to Bowser's birth date, select Bowser's record like this: The SELECT DISTINCT statement is used to return only distinct (different) values. . What's the best way to accomplish this in a reasonably efficient way? Jul 23, 2025 · In MySQL, the SELECT statement is used to fetch data from tables. Using WHERE colorID IN (2,6) returns values for products that do not have both colorID 2 and 6. Using WHERE colorID=2 AND colorID=6 returns 0 rows. I suggest a good SQL tutorial. Dec 21, 2012 · Basically, what I want to do is pick certain rows (1,2,3 1,3 0,2,4 any combination really) and then be able to display just those in a list to the user. If you're looking for a book, "SQL For Dummies" is a favorite, even though I know a lot of people don't like the "For Dummies" series. Let's look at some selection queries in terms of questions about your pets that they answer. cokpqaiw cbxp kfsihu vxakt loxz mdxoqgub hvmpy nriqh fjzi hnna