SQL - AVG() on * fields
117343
Average of multiple columns
118016
sqlalchemy: get max/min/avg values from a table
3438
How do I ignore ampersands in a SQL script running from SQL Plus?
137984
How do I use "GROUP BY"?
9374
How to concatenate strings of a string field in a PostgreSQL 'group by' query?
37685
queries with db_select don't respect integers
118546
In SQL, how can you "group by" in ranges?
60555
How to count occurrences of a column value efficiently in SQL?
87213
Summing a comma separated column in MySQL 4 (not 5)
127641
GROUP BY / aggregate function confusion in SQL
91887
Select statement to find duplicates on certain fields
10080
MySQL Syntax error message "Operand should contain 1 column(s)"
158751
Oracle ORA-00979 - "not a GROUP BY expression"
53925
Converting a date in MySQL from string field
39545
New field based on sum field
51536
Concatenate fields in SOQL queries in the WHERE clause (no Apex)
132785
Comma separated value & wildcards in mysql