Dumitrescu Bogdan questions

Dumitrescu Bogdan answers

• Is it more efficient to filter rows in each union table select or filter only once on the parent select
• Trigger and update to a row in SQL Server after it's been updated
• How to implement FIFO in sql
• SQL Server Count is slow
• SQL Group BY, Top N Items for each Group
• Behaviour of SELECT @Var and SET @Var in T-SQL when dealing with NULLs
• Find first non-zero in a numeric string
• bit manipulation:print the next smallest and largest numbers with same no of 1 bits
• SQL select query help required
• SQL Server delete performance