How many non-clustered index can be created on a table in SQL Server 2005?
In SQL Server 2005 and earlier, a maximum of 249 non-clustered indexes could be created on a table but now in SQL Server 2008 that limit has been increased and now 999 non-clustered indexes can be created on a single table.
What is the maximum number of non-clustered index in SQL Server?
999
The maximum number of nonclustered indexes that can be created per table is 999. This includes any indexes created by PRIMARY KEY or UNIQUE constraints, but does not include XML indexes. After a unique clustered index has been created on a view, nonclustered indexes can be created.
What is the maximum number of nonclustered indexes you can have for each table?
Database Engine objects
| SQL Server Database Engine object | Maximum values for SQL Server (64-bit) |
|---|---|
| Nested trigger levels | 32 |
| Nonclustered indexes per table | 999 |
| Number of distinct expressions in the GROUP BY clause when any of the following are present: CUBE , ROLLUP , GROUPING SETS , WITH CUBE , WITH ROLLUP | 32 |
Can there be 2000 non-clustered index per table?
Maximum of non-clustered indexes per table is 999 for SQL Server 2012. Typically tables have only a few indexes because each index is an overhead.
How can use non-clustered index in SQL query?
There can be 999 non-clustered indexes on a single table is 999. When you create a Unique constraint, a unique non-clustered index is created on the table. The syntax for creating a non-clustered index is similar to the clustered index. Just use the keyword “NONCLUSTERED” instead of “CLUSTERED”.
What is the maximum number of index per table?
You can create a maximum of 999 (Non-Clustered Indexes) per table as per limitations. You can create 999 Unique constraints per table.
What is non-clustered index in SQL?
The Non-Clustered index is an index structure separate from the data stored in a table that reorders one or more selected columns. The non-clustered index is created to improve the performance of frequently used queries not covered by clustered index.
What is the maximum number of columns that we can combine to create a non-clustered index key?
In SQL Server, you can include up-to 1023 columns per each non-clustered index. But you have to add minimum one key column to your non-clustered index in order to create it.