Select Count(*) [Activity], T.[ID Name],From MyTable[ID Name], Case when Count(*) < 6 then 'Other Shop' Else 浏览2提问于2017-04-12得票数 1 1回答 Using Count with Case语句(T-SQL) 、、、 我正在尝试从一个表中获取元素(贷款)的计数,该计数基于我已放入case语句中的特定条件。我使用...
group by rs.stratum_id, rs.treatment_group_id order by countz desc; This query returns the three stratum/treatment combinations that have rows for them, but does not return the one combination that has no rows. I've tried using an NVL on the count but to no avail—it just seems to...
mysql quick query row count using sql 1. command show table status like '{table-name}'; 2. sample mysql> use inventory; Database changed mysql> show tables; +---+ | Tables_in_inventory | +---+ | customers | | decimalTest | | orders | | orders1 | | products | | products_on...
上面的sql中 订单表中(orders) 存在user_id,而又有用户表(users),所以我们用orders表中user_id和user表中的id 来in 和 exists。 结果 1.where后面是小表 (1)select count(1) from orders o where o.user_id in(select u.id from users u); (2)select count(1) from orders o where exists (select...
TheCOUNT(*) OVER (PARTITION BY 1)makes the trick. SELECT Name, TotalRows = COUNT(*) OVER (PARTITION BY 1) FROM sys.tables Code You can see the number of rows within the returned sql result set is displayed in an additional sql column TotalRows. ...
select dept.name,count(teacher.name)from teacher right join dept on dept.id=teacher.dept group by dept.name; Use CASE to show thenameof each teacher followed by ‘Sci’ if the teacher is indept1 or 2 and ‘Art’ otherwise. 代码语言:javascript ...
reader.Read(); for (int i = 0; (i < items.Count) && (!reader.IsClosed); i++) { ((Item)(items[i])).readData(reader); } // ensure the reader is closed if (!reader.IsClosed) reader.Close(); foreach (Item item in items) { // Compute the schedule and report it item....
selectdept.name,count(teacher.name) from teacher right join dept onteacher.dept=dept.idGROUP BYdept.name; Using CASE 9.Use CASE to show the name of each teacher followed by 'Sci' if the teacher is in dept 1 or 2 and 'Art' otherwise. ...
MONTHS_BETWEEN function returns the count of months between the two dates. ADD_MONTHS function add 'n' number of months to an input date. NEXT_DAY function returns the next day of the date specified. LAST_DAY function returns last day of the month of the input date. ROUND and TRUNC func...
If the statement was a SELECT query, you can retrieve the results by calling the getResultSet() method. If the statement was an UPDATE, INSERT, or DELETE statement, you can retrieve the affected rows count by calling getUpdateCount() on the Statement instance. ...