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1. Click List under Cassandra Keyspaces and select a keyspace to add column families to.
   

2. Click Add a New Column Family to open the New Column Family window where you can enter column family details to the keyspace.
   
   
   The fields of the new column family window are described below:

   Fields	Description
   Name*	Column Family (CF) Name is mandatory. Must not contain the character "-".
   Comment	Description of the column family. Used to attach additional human-readable information about the column family to its definition
   Column Type	Standard Column Family Super Column Family
   Key Validation Class	Datatype of Row keys
   Comparator	Datatype of Column keys
   Default Validation Class	Default datatype of Column values

3. Click Save after adding column family details. The Keyspace Information window opens with links to column family operations such as Set Permissions, edit or delete.
   

4. Click on the Column Family's name and then theAdd New Index/Non-Index Column link to create a an indexed or non-indexed column.

   

   Field	Description	Required/Optional
   Name	Name of the new column	Required
   Index Name	Index Name (If you need an indexed column)	Optional
   Validation Class	Datatype of column value	Required

   There are 2 ways of defining a column. 

   1) Create a (non-indexed) column with a Validation class : Do not specify any values for 'Index Name'.

   Validation Class

   2) Create an indexed column with a Validation class : Specify a name for the Index in 'Index Name'.