Requirements: Because the project just uploaded, no votes, in order to show a certain popularity, the need to be in the beginning of the number of votes to assign a value,
But each project can not be the same, otherwise easy to see the problem, hehe.
Copy Code code as follows:
DECLARE @Id varchar (50)
DECLARE my_cursor Cursor--Defining cursors
For (SELECT Id from Dbo.kinpanawardproject where session=9)--Find the desired collection and place it in cursor
OPEN My_cursor; --Open cursor
FETCH NEXT from My_cursor into @Id; --Read the first row of data (put the ID in the @id variable)
While @ @FETCH_STATUS = 0
BEGIN
PRINT @Id; --Print data (ID)
UPDATE dbo.kinpanawardproject SET proticketcount = CAST (Floor (rand () *30) as int) +40 WHERE Id = @Id; --Update the data using random numbers.
FETCH NEXT from My_cursor into @Id; --Read the next line of data (put the ID of the query into the @id variable)
End
Close my_cursor; --Close cursor
Deallocate my_cursor; --Releasing cursors
Go
There is also a usage that may be better, and I think that if you do not need to judge the ID, you do not need a where query at the time of the modification, and it is faster to modify the cursor's current position directly.
Copy Code code as follows:
DECLARE my_cursor Cursor--Defining cursors
For the SELECT * FROM dbo. Memberaccount)--Find the desired collection and put it in the cursor
OPEN My_cursor; --Open cursor
FETCH NEXT from My_cursor; --Read the first row of data
While @ @FETCH_STATUS = 0
BEGIN
--update dbo. Memberaccount SET UserName = UserName + ' A ' WHERE current of my_cursor; --Update
--delete from dbo. Memberaccount WHERE Current of my_cursor; --Delete
FETCH NEXT from My_cursor; --Read the next line of data
End
Close my_cursor; --Close cursor
Deallocate my_cursor; --Releasing cursors
Go
