Collections Overview

Collection data types are a way to group and store data together in a column.

The following collection data types are available in CQL:

  • set: store unordered items

  • list: store ordered items

  • map: store key-value pairs

Collections concepts

General concepts of collections in CQL.

Create collection

Create a collection column on a table.

Check collection

Check if a collection column exists on a table.

Alter collection

Alter a collection column on a table.

Drop collection

Drop a collection column from a table.

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