This article is the part of Does it matter ? series. We'll discuss various aspects to save cost and optimize the database performance by archiving the data.
Tag: Performance Tuning
Pseudo Code for batch processing using WHILE LOOP
Leveraging WHILE LOOP
Leveraging WHILE LOOP
WHILE LOOP can be used for batch processing and can be helpful if you are dealing with huge data processing. Recently I did an analytics project where I had to iterate through 70K customers and generate the Monthly, Last One Year and Since Inception returns of all the customers and their respective benchmark index since … Continue reading Leveraging WHILE LOOP
Best way to deal with Index Fragmentation
Fragmentation can hurt the performance of your query very badly. It is one of the key factor behind poor performing database. Many a times, DBA takes it very easy and respond when there is complete slowdown of the application. DBA respond to the situation in reactive manner instead of the proactive manner. It is essential to removes fragmentation and reclaims disk … Continue reading Best way to deal with Index Fragmentation
EXISTS() and NOT EXISTS()
Many a times we have requirements to check existence of a particular value in a particular table. There could be several ways to accomplish it viz. using left join and sub-query. All of us know that sub-queries are not optimized way while dealing with large volume of data. So what is the alternative to the Left Join which could also cause performance … Continue reading EXISTS() and NOT EXISTS()
SQL Server Carpenter 