Sql select unique rows based on a column

Stort utbud ekologisk och naturlig hälsokost - för en bättre vardag. Boka Best Western Plus Row idag! SQL Server QA from the SQL Server Central community. I want to select rows that have a distinct MessageI.

The SQL Distinct command can be used in the SELECT statement to ensure that the query returns only distinct ( unique ) rows. When the query is selecting the rows it discards any row which is a duplicate of any other row already selected by the query. How to select rows based on unique column.

SQL - Selecting unique values from one column then filtering based on another. I have tried distinct and group by but none of them working. There is a situation when we need to retrieve only unique row based on one column.

And also used join two tables to retrieve unique data. In this case we use distinct keyword to select unique records. Example: In the below example first two rows has same value for first columns. But they have different value for column DEF.

So both these rows to be listed in output. But rows and has unique combination for first columns but they have same values in DEF column. So not to be listed in output. From my table, I need to select top one for all distinct value for a specific column. Obviously, above is not correct.

Select top distinct colname from table. How do you query for three unique customers with the largest. All Products and Pricing. It returns duplicate rows.

DISTINCT on one column and return TOP rows. I just needed to omit those non-duplicate valued columns from the select list of a distinct clause, which were trivial anyways. The result set would then only include entirely distinct rows. In this syntax, the combination of values in the column _ column _ and column _are used to determine the uniqueness of the data.

Would be great to extend unique or have a uniquerows, so that one can create a dataframe from an existing one that has unique rows - but the uniqueness could be based on unique values in a particular column. The following query selects some of the information I nee but it does not only grab one row per UniqueID. If a row has different values for FreightPay (or any other column ) it will be SELECTED as a new row.

And if I put it like select distinct colcocol colfrom tableI will only get unique rows based on all the columns - this is not what I want. You might’ve noticed that. The query returns the unique combination of bcolor and fcolor from the ttable. Notice that the ttable has two rows with red value in both bcolor and. Hi all, how do i generate duplicates based on a column value.

Suppose that I have columns : id ,name,No:ofCopies.