I'm pretty new to Python and am completely confused by .join() which I have read is the preferred method for concatenating strings. I tried: strid = repr(595) print array.array('c', random.sample(

Dec 7, 2012 · a = ['hello1', 'hello2', 'hello3'] ','.join(a) I would like to have 'and' instead of a comma before the last element of the list. So I would get: hello 1, hello 2 and hello 3. instead of.... hello …

Aug 16, 2011 · The following will also work: SELECT DISTINCT b.ClientName, a.TranID, a.TranRemark1, a.TranDateOfService, a.TranPayment FROM (select TranRemark1, TranID …

Note that a JOIN without any other JOIN keywords (like INNER, OUTER, LEFT, etc) is an INNER JOIN. In other words, JOIN is a Syntactic sugar for INNER JOIN (see: Difference between …

Jan 2, 2009 · LEFT OUTER JOIN - fetches data if present in the left table. RIGHT OUTER JOIN - fetches data if present in the right table. FULL OUTER JOIN - fetches data if present in either …

Inner join - An inner join using either of the equivalent queries gives the intersection of the two tables, i.e. the two rows they have in common. Left outer join - A left outer join will give all rows …

Apr 21, 2012 · A CASE expression returns a value from the THEN portion of the clause. You could use it thusly: SELECT * FROM sys.indexes i JOIN sys.partitions p ON i.index_id = p.index_id …

By using the merge function and its optional parameters:. Inner join: merge(df1, df2) will work for these examples because R automatically joins the frames by common variable names, but you …

update ud u inner join sale s on u.id = s.udid set u.assid = s.assid SQL Server: update u set u.assid = s.assid from ud u inner join sale s on u.id = s.udid PostgreSQL: update ud set assid …

Basically when you are doing a join to see which objects have no association, then putting the conditions inside the JOIN ON will avoid getting redundant data and help the RDBMS engine …