Snippet Name: Index_Enhancement_Deployment

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Created Date: 2025-06-16 13:12:41
Last Modified Date: 2025-05-31 10:32:06

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Title: Index Enhancement Deployment
Author: user
In SQL Server 2019, i want to enhance an existing index with the same index, but now with an include column . here are teh two index statements, where the second has the new include. can you help me writ ethe deploy script?  CREATE  NONCLUSTERED  INDEX [IDX_GYMT_Message_Thread_CC_UserIDStatus] 
 ON [GYMT_ODB].[GYMT_Message_Thread_CC] ([UserID] asc, [Status] asc)
 INCLUDE(UnreadCount)
 WITH ( DATA_COMPRESSION = PAGE )

  CREATE  NONCLUSTERED  INDEX [IDX_GYMT_Message_Thread_CC_UserIDStatus] 
 ON [GYMT_ODB].[GYMT_Message_Thread_CC] ([UserID] asc, [Status] asc)

 WITH ( DATA_COMPRESSION = NONE )

Author: ChatGPT
To deploy this change safely in SQL Server 2019 without causing disruption, you need to:

1. **Check if the index exists** before dropping it.
2. **Drop the existing index** to allow recreation.
3. **Recreate the index with the included column and data compression**.

Here???s the deployment script:

```sql
USE [GYMT_ODB];
GO

-- Check if the index exists before dropping
IF EXISTS (SELECT 1 
           FROM sys.indexes 
           WHERE name = 'IDX_GYMT_Message_Thread_CC_UserIDStatus' 
           AND object_id = OBJECT_ID('GYMT