I have a table with columns for ID, firstname, lastname, address, email and so on. Is there any way to delete duplicate em开发者_JS百科ail addresses from the TABLE?
So basically what I am doing is building a tree backwards. I am starting at the leaves, then adding their parents, then theirs (it is a 3 level tree in the end).
I have 2 big CSV file with millions of rows. Because those 2 CSVs are from MySQL, I want to merge those 2 tables into one Document in couch DB.
I simply want to return duplicate records from a table.In my case, a record is duplicate if more than one record has the s开发者_开发百科ame value in col1, col2, col3, and col4.SELECT col1, col2, col3
I need regular expression to remove duplicate using statements. using NS.SN.Services.Common; using NS.SN.Data.BaseRegistry;
I have data like this : col1 | -------- |1| |2| |1| |2| |1| |2| |1| |2开发者_如何学C| |1| |2| How can I get like this and order by MAX to Min :
Background Remove duplicate city names from a temporary table, based on the length of the name. Problem
My program is really simple it inserts the same value in one column and updates the timestamp and date on another column. It also has an auto incrementing ID column that acts as the table\'s primary k
I have to write a bulk operation version of something our webapp lets you do on a more limited basis from the UI.The desired
I have the following query: SELECT word, count FROM t_word t JOIN t_counter tc ON t.word_id = tc.id Which produces something like:
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