SQL Statement Merge Column Values Combine multiple values of a column into one row

Oralce writing:

select WM_CONCAT(A.title) as citys from tmpcity A

 

sql server writing:

select stuff((select ','+A.title from tmpCity A FOR xml PATH('')), 1, 1, '') as citys

 

MySQL writing:

select GROUP_CONCAT(A.title) as cities from tmpcity A; --default comma separated
select GROUP_CONCAT(A.title SEPARATOR ' ') as cities from tmpcity A; --separated by spaces