%%[
var @rows, @row, @rowCount, @numRowsToReturn, @lookupValue, @i

set @lookupValue = "whee"
set @numRowsToReturn = 0 /* 0 means all */
set @rows = LookupOrderedRows("DataExtensionName",@numRowsToReturn,"DEColumn1 desc, DEColumn2 asc","LookupColumn", @lookupValue)
set @rowCount = rowcount(@rows)

if @rowCount > 0 then

for @i = 1 to @rowCount do

var @DEColumn1, @DEColumn2
set @row = row(@rows,@i) /*get row based on loop counter */
set @DEColumn1 = field(@row,"DEColumn1")
set @DEColumn2 = field(@row,"DEColumn2")

]%%

Row %%=v(@i)=%%, DEColumn1 is %%=v(@DEColumn1)=%%, DEColumn2 is %%=v(@DEColumn2)=%%

%%[

next @i ]%%

%%[ else ]%%

No rows found

%%[ endif ]%%