Could not allocate space for object

 The error "Could not allocate space for object" typically indicates that the database has run out of space in the filegroup or the file where the object (table, index, etc.) resides. This can happen due to several reasons such as the filegroup being full, the database reaching its maximum size, or the disk being out of space.

Here are steps to troubleshoot and resolve this issue:

1. Check Disk Space:

   • Ensure that there is enough free space on the disk where the database files are stored. If the disk is full, free up some space.

2. Check Database File Sizes:

• Verify the current size and the maximum size of the database files. Use the following query to check the size of the database files:

USE YourDatabaseName;
GO
EXEC sp_helpfile;

    3. Increase Database File Size:

• If the database file has reached its maximum size, you can increase its size or set it to auto-grow. Use the following command to increase the size:

ALTER DATABASE YourDatabaseName
MODIFY FILE (NAME = 'YourLogicalFileName', SIZE = new_size_in_MB);

To set the file to auto-grow, use:

ALTER DATABASE YourDatabaseName
MODIFY FILE (NAME = 'YourLogicalFileName', FILEGROWTH = growth_increment_in_MB);

  4.  Add a New File to the Filegroup:

• If the filegroup is full, you can add a new file to the filegroup:

ALTER DATABASE YourDatabaseName
ADD FILE (
    NAME = 'NewFileName',
    FILENAME = 'path_to_new_file',
    SIZE = initial_size_in_MB,
    FILEGROWTH = growth_increment_in_MB
) TO FILEGROUP 'YourFileGroupName';

  5. Shrinking Files:

• If there is unused space within the database files, you can reclaim it by shrinking the files. However, use this option with caution as it can lead to fragmentation.

DBCC SHRINKFILE (YourLogicalFileName, target_size_in_MB);

  6. Monitor and Maintenance:

• Regularly monitor the database size and growth patterns to anticipate and manage space issues before they become critical.