I have a table, derived from several different tables, with several similar (near duplicate) rows and need to resolve similar rows into single rows. Using DISTINCT or UNION resolves the rows but in an
I am joining two tables (shipments and returns) and using group by to view totals for certain criteria. The two tables are related via shipment_id. this column is mostly unique, but contains a few dup
I\'ve a query like SELECT Id, Category, Title FROM articles WHERE 1 ORDER BY RAND() LI开发者_Python百科MIT 0,20
I asked a question earlier about a replacement to using SELECT DISTINCT as the query takes a lot longer to execute. I was recommended to use EXISTS and it worked A LOT better (0 second execution versu
number| time 421112233444 | 1304010250 421112233444 | 1304272979 421001122333 | 1303563263 421112233444 | 1300217115
SQL distinct for 2 fields in a database The above link I believe is not too far from what I\'开发者_C百科m looking for. There was a post talking about what I believe I need. It says that I should hav
I\'m not too familiar with SQL queries but have noticed a significant performance decrease when running a query using Select Distinct. I\'m running SQL Server 2008 R2. Below is my query:
I would like to take two columns of data in the same table, and return the unique records from both in an ordered list. I tried this:
I\'m having trouble on generating a report in MySQL.I have this table: CREATE TABLE users ( id INT UNSIGNED PRIMARY KEY AUTO_INCREMENT,
in my database I have a lot of entries that are very similar but not identical. For instance just two characters might be different such as:
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