Hi!I often run queries on my company’s Data Warehouse, which runs DB2. Due to the nature of my permissions, I cannot create Views or new Tables – thus, everything generally has to be done in a ...

The followin sql (valid in Oracle 11) is not accepted by the parser. select col1, min(col2) KEEP (DENSE_RANK FIRST ORDER BY col3), col4 from table1 group by col5 order by col3 see: ... (FIRST, LAST) ...

SQL defines aggregate functions which can summarize a whole column using an aggregative operation. The two most basic aggregate functions are SUM and COUNT, which can sum the total value of a column ...