---
title: Add an Index
description: "To create a new Index for a Model Object, access the Indexes overview page for a Model Object:\nThen click on the Add Index button:"
---

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# Add an Index

### Add an Index

To create a new Index for a Model Object, access the **Indexes overview** page for a Model Object:

![](https://knowledge.bigenius-x.com/hs-fs/hubfs/image-png-Mar-04-2026-01-25-48-6715-PM.png?width=670&height=203&name=image-png-Mar-04-2026-01-25-48-6715-PM.png)

Then click on the **Add Index** button:

![](https://knowledge.bigenius-x.com/hs-fs/hubfs/image-png-Mar-04-2026-01-27-26-9355-PM.png?width=140&height=46&name=image-png-Mar-04-2026-01-27-26-9355-PM.png)

The **New Index** side panel window is opened:

![](https://knowledge.bigenius-x.com/hs-fs/hubfs/image-png-Mar-04-2026-01-28-18-4006-PM.png?width=670&height=290&name=image-png-Mar-04-2026-01-28-18-4006-PM.png)

Fill in the following information:

1. **Index Name**: Index name
2. **Index Type**: choose the Index type:  
   ![](https://knowledge.bigenius-x.com/hs-fs/hubfs/image-png-Mar-04-2026-01-31-44-9037-PM.png?width=489&height=152&name=image-png-Mar-04-2026-01-31-44-9037-PM.png)  
     1. **Clustered Rowstore Index**: Physically sorts all table rows by key (1/table); fast OLTP lookups/ranges.
     2. **Non-clustered Rowstore Index**: Separate pointer index (many/table); selective queries, extra row fetch.
     3. **Clustered Columnstore Index**: Table is columnar/compressed (1/table); analytics scans/aggs.
     4. **Non-clustered Columnstore Index**: Columnar overlay on rowstore (many/table); hybrid OLTP+analytics.
    Depending on the Index Type, more information to fill in:  
   ![](https://knowledge.bigenius-x.com/hs-fs/hubfs/image-png-Mar-04-2026-01-37-03-2625-PM.png?width=670&height=337&name=image-png-Mar-04-2026-01-37-03-2625-PM.png)
3. **Create as Unique Index**: Enforces no duplicate values in index key columns.  
     1. For*Clustered Rowstore*, *Non-clustered Rowstore*, and *Non-clustered Columnstore Index*
4. **Included Columns**: Non-key columns stored at leaf level; covers queries without key lookups. 
     1. For*Non-clustered Rowstore* and *Non-clustered Columnstore Index*
5. **Index Columns**: Key columns forming the index structure; sorted/searched for fast lookups.   
     1. For*Clustered Rowstore* and *Non-clustered Rowstore*

To have a better understanding, let's take an example with the following table:

```
CREATE TABLE Sales (       SaleID int,       CustomerID int,       SaleDate datetime,       Amount decimal(10,2) );
```

**Clustered Rowstore** (Unique, Index Columns):

```
CREATE UNIQUE CLUSTERED INDEX IX_Sales_SaleID ON Sales (SaleID);  -- Physically sorts table by SaleID
```

**Non-clustered Rowstore** (Unique, Index+Include Columns):

```
CREATE UNIQUE NONCLUSTERED INDEX IX_Sales_CustomerDate ON Sales (CustomerID, SaleDate)  -- Index columnsINCLUDE (Amount);                -- Included column
```

**Clustered Columnstore** (Full table columnar, no INCLUDE/UNIQUE needed):

```
CREATE CLUSTERED COLUMNSTORE INDEX IX_Sales_Col ON Sales;  -- Replaces rowstore entirely
```

**Non-clustered Columnstore** (Unique, Index+Include Columns):

```
CREATE UNIQUE NONCLUSTERED COLUMNSTORE INDEX IX_Sales_CustAmt ON Sales (CustomerID)            -- Index column  INCLUDE (Amount, SaleDate);      -- Included columns
```

Then click on the **SAVE** button:

- The new Index appears:  
  ![](https://knowledge.bigenius-x.com/hs-fs/hubfs/image-png-Mar-04-2026-01-50-08-8748-PM.png?width=1383&height=278&name=image-png-Mar-04-2026-01-50-08-8748-PM.png)
- A notification confirms the correct creation:  
  **![](https://knowledge.bigenius-x.com/hs-fs/hubfs/image-png-Mar-04-2026-01-50-23-4209-PM.png?width=365&height=63&name=image-png-Mar-04-2026-01-50-23-4209-PM.png)**

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