Articles by Elina Blank (Tip/Tricks: 6)

Another option:declare @commaStringList varchar(max)set @commaStringList = ''select @commaStringList = @commaStringList + ', ' + CAST(ColumnName as VARCHAR) from MyTable -- remove leading commentif len(@commaStringList) > 3 set @commaStringList =...

Using window functions (partition by) will speed up the process:SELECT Val, SUM(Val) OVER (Partition BY [YourPartitionValue] Order BY [OrderColumn] as CumulativeSumFROM [Table]

When cursors are inside transaction, it is sometimes easy to forget to close the cursor

An alternative (simpler way :) ) is:BEGIN TRANDECLARE IdCursor CURSOR FOR SELECT Id FROM MyTable OPEN IdCursor FETCH NEXT FROM IdCursor INTO @CurrentIdWHILE (@@FETCH_STATUS) = 0 BEGIN -- do work IF @@error 0...

To see the default value of the cursor scope:select * from sys.databases(if value of "is_local_cursor_default" is 0 then scope id global, otherwise it is local).The scope is GLOBAL by default (for compatibility reasons).To change default scope use following:ALTER DATABASE...

sometimes we need last occurance of the character in the string