How can data pagination be implemented in Cassandra?

5 months ago

2 minutes

To implement paging in Cassandra, you can use CQL (Cassandra Query Language) statements along with the LIMIT and TOKEN functions. Here are the specific steps:

Retrieve data using the SELECT statement and limit the amount of data returned in each query using the LIMIT keyword.
To implement paginated data queries, you can record the token value of the last query result’s last data each time you query. Then, in the next query, use the TOKEN function to use that token value as the starting point for the continued search.
Control the data returned for each query by setting the LIMIT keyword to enable pagination functionality on the client side.

The example code is as follows:

SELECT * FROM table_name WHERE token(column_name) > token('last_token_value') LIMIT 10;

In this example, ‘last_token_value’ is the token value of the last data entry from the previous query. This value is converted to a token using the TOKEN function, and the data returned in each query is limited to 10 entries using the LIMIT keyword.

This allows for paginated queries in Cassandra.