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Very late to this thread, but I had a similar situation and the following worked on MySQL. The following query will also return all the rows that match the condition of duplicate emails. SELECT * FROM TABLE WHERE EMAIL IN. (SELECT * FROM. (SELECT EMAIL FROM TABLE GROUP BY EMAIL HAVING COUNT(EMAIL) > 1) AS X);
30 lis 2013 · I need to find out the records where the article_title data is the same on more than one record. Here's what I've got: select a.* from articles a where a.article_title = (select article_title from articles where article_title = a.article_title AND a.id <> articles.id) mysql. duplication.
11 lut 2012 · The trick is to set the join condition to "the same locus and chromosome": select left.* from Genes left inner join Genes right on left.Locus = right.Locus and left.Chromosome = right.Chromosome and left.ID != right.ID
Have you ever encountered a situation where you need to find rows that have the same value in a specific column in your MySQL database? Maybe you have a table where multiple records share the same email address, and you want to identify them for further investigation or cleanup.
26 sty 2024 · By understanding how to combine the WHERE, GROUP BY, and HAVING clauses in MySQL, you can create powerful, precise queries that return exactly the data you need. Remember to utilize them in the correct order and beware of the common pitfalls associated with their use.
14 cze 2018 · I have a table say table1 with three columns lets name them col1 col2 and col3. I have a suspicion that col2 and col3 have some values that are identical i.e. to say there are some rows where col2 = col3. In case, if for these rows col1 is the same I will have no problem in my application.
You can select only particular rows from your table. For example, if you want to verify the change that you made to Bowser's birth date, select Bowser's record like this: mysql> SELECT * FROM pet WHERE name = 'Bowser'; +--------+-------+---------+------+------------+------------+.
