Category "sql-execution-plan"

Insert of records into SQL Server is slow whereas select is quicker

I am trying to improve the performance of insert in SQL Server. INSERT INTO [dbo].[GroupCustomerAccountProductRebates]([GroupId],[GroupName],[ProductId],[Manufa

Postgres query cost is higher but runs faster

Update on 2022-05-15 After running vacuum analyze, the query plans are below. For A query Nested Loop Left Join (cost=45913.11..496597.16 rows=10 width=128) (a

Checking variable for NULL kills performance

I have following queries: DECLARE @application_number CHAR(8)= '37832904'; SELECT la.LEASE_NUMBER AS lease_number, la.[LEASE_APPLICATION] AS applicatio