SELECT COUNT(*)(SELECT DISTINCT a.my_id, a.last_name, a.first_name, b.temp_val. FROM Table_A a INNER JOIN Table_B b on a.a_id = b.a_id).
You can do this with sum + case: SELECT w.nm_city, i.id_city, sum(case when sts = 1 then 1 else 0 end), sum(case when sts = 2 then 1 else 0 end), sum(case when sts = 0 then 1 else 0 end) FROM installation i JOIN city w ON i.id_city = w.id_city GROUP BY i.id_city. Btw. Your cities are not cities...
I have the following query. select main_cat_name,cat_url from mf_main order by main_cat_name. This returns whole data of my table.Now i want to have count of the total rows of this table.I can do it using another query but how can i use them in one single query???
select count(*) from (select count(*) from MyTable t group by t.col1, t.col2) g. But in HQL it seems I can not do a select in a select as I did in the previous sql. I guess the problem is that Hibernate does not support subquery in the from clause. Is there any way to do this in hql?
count(select * from bookings where b.id_customer = c.id) as purchased, count(select * from bookings where b.the_date > $now) as remaining
1' AND (SELECT * FROM Users) = 1--+ #Operand should contain 3 column(s) #. This error means query uses 3 column #
FROM (SELECT ...) Надо найти имя таблицы из другой таблицы, а потом из этой найденной таблицы сделать...
data: cnt type I value 0. select count( * ) into cnt from mytable WHERE myfield_0 = 123 and myfield_1 = '123'.
SELECT * FROM dbo.CityAddress WHERE City = N'London'. План выполнения с индексным представлением и без
Если вы используете базу данных MySQL, это очень важно, чтобы вы работали комфортно с командной строкой MySQL.На этом уроке мы расскажем, как использовать команду SELECT в MySQL с несколькими...