說我有一個MySQL查詢像這樣： SELECT id,
something,
CASE colour
WHEN 1 THEN 'not ripe'
WHEN 2 THEN 'ripe'
ELSE 'rotten'
END AS 'ripeness'
FROM fruit
WHERE fruit_type = 'app
我有以下查詢，我想刪除管理部門中的3名員工。 Delete from Employee_tbl where emp_Id = 123 and emp_dep = 'Admin';
Delete from Employee_tbl where emp_Id = 456 and emp_dep = 'Admin';
Delete from Employee_tbl where emp_Id = 7
我使用MS SQL Server 2012中： 這兩個查詢是： 1： with cte as
(
<some code>
)
delete p from table p join cte on p.id=cte.id
and p.date>cte.date
2： with cte as
(
<some code>
)
delete p from table p join ct
我想通過大量的變量選項來進行一些高級查詢的自動化SQL分析。什麼我希望做的是類似於以下 set statistics io on
set statistics time on
select *
from MyTable
set statistics time off
set statistics io off
--Somehow return the statistics for
我有這樣的SQL查詢的SQL查詢的性能： IF NOT EXISTS (SELECT TOP 1 RowId
FROM dbo.Cache AS C
WHERE StringSearched = @pcpnpi
AND colName = 'pcpnpi'
AND ModifiedAt > (SELECT ModifiedAt