all you should do is just join the tables like this. UPDATE table2 t2 JOIN table1 t1 ON t1.id = t2.id SET t2.name = t1.name; RESULTS WITH JOIN if you are set on doing it with a select you could do it like this. UPDATE table2 t2, ( SELECT Name, id FROM table1 ) t1 … Read more
It’s a nasty little idiom for setting autoflush on a filehandle other than STDOUT. select() takes the supplied filehandle and (basically) replaces STDOUT with it, and it returns the old filehandle when it’s done. So (select($s),$|=1) redirects the filehandle (remember select returns the old one), and sets autoflush ($| = 1). It does this in … Read more
Using a subquery, you can get the highest id for each name, then select the rest of the rows based on that: SELECT * FROM table WHERE id IN ( SELECT MAX(id) FROM table GROUP BY name ) If you’d prefer, use MIN(id) to get the first record for each name instead of the last. … Read more
Try this: Select user_id from yourtable where ancestry in (‘England’, ‘France’, ‘Germany’) group by user_id having count(user_id) = 3 The last line means the user’s ancestry has all 3 countries.
solution with inside check: jq ‘with_entries(select([.key] | inside([“key1”, “key2”])))’
$(‘meta[property=”og:image”]’).attr(‘content’) http://jsfiddle.net/ZxmCw/
There is a select method in ARel, but you must use the correct table names (i.e. plural and beware if you have polymorphic models or if you’re using set_table_name or some other similar non-standard practice) @items = Item. select(‘users.name’, ‘users.created_at’, ‘orders.created_at’, ‘suppliers.name’, ‘agents.name’, ‘manufacturers.name’). where(:users => { :fulfilled => true }). includes(:orders => [:supplier, :agent], … Read more
The problem is that the CASE statement won’t work in the way you’re trying to use it. You can only use it to switch the value of one field in a query. If I understand what you’re trying to do, you might need this: SELECT ActivityID, FieldName = CASE WHEN ActivityTypeID <> 2 THEN (Some … Read more
Like this: case when FirstEvent.TitleID = SecondEvent.TitleID then 1 else 0 end as titlesSameCheck
This should give you a list of all the tables in your database SELECT Distinct TABLE_NAME FROM information_schema.TABLES So you can use it similar to your database check. If NOT EXISTS(SELECT Distinct TABLE_NAME FROM information_schema.TABLES Where TABLE_NAME = ‘Your_Table’) BEGIN –CREATE TABLE Your_Table END GO