This procedure will list down all the indexes (Clustered as well Nonclustered Indexes) whose first key column having poor cardinality.
Tag: Index Tuning
This procedure will estimate the cardinality of all the columns of the supplied table list. If the table list is not supplied (or supplied with NULL, the default value) then it will estimate the cardinality for all the tables in the database.
This procedure will list down all the nonclustered indexes, which includes key columns as that of the clustered index. It will also list the key columns of both – nonclustered index, and the corresponding clustered index, along with the key ordinal of the clustered index key columns in the respective nonclustered index. It is now up to you to decide which one makes sense, and which doesn’t. Take the decision accordingly and delete the ones that do not make sense. This procedure may be helpful in performance tuning assignments.
It's being quite a long time when I made the last post. Actually, I was lacking a topic that should trigger me to write. Finally, I got one when I was working on one of the Performance Tuning assignments. Performance Tuning is a mix of wisdom and exploring the unknown, especially when you have a … Continue reading Query to find Nonclustered Index clashing with Clustered Index