Grouping Selecting unique values in a single column
102883
how to show only changed rows
76577
Single query approach to split and copy string values in a column
15594
Select the row with the maximum value in each group
88569
Increment value based on grouped field
22985
SQL query that gives distinct results that match multiple columns
35430
selecting where two columns are in a set
96679
Group By Multiple Columns
155779
Selecting Unique Elements From a List in C#
118231
Return multiple values in one column
103622
Select Multiple Values from Same Column; one sql statment
74036
Count the occurrences of DISTINCT values
10182
Combining values in one column (or part) when values in another column (or part) match
69570
How to count number of distinct values in a range?
147808
PHP splitting arrays into groups based on one field's value
5745
SQL group_concat function in SQL Server
56088
Single drop down with data from separate columns
21053
How to use GROUP BY to concatenate strings in MySQL?