The Scan and Get operations in HBase

6 months ago

2 minutes

The Scan and Get operations in HBase are both used to read data from a table, but there are some differences between them.

The Get operation is used to retrieve data for a specific row key by specifying the key itself. On the other hand, the Scan operation is used to scan a series of row keys in a table and return multiple rows of data that meet the specified conditions.
The Get operation is used to read data for a single row key, whereas the Scan operation can read data for multiple row keys within a specified range by setting a start and end row key.
The Get operation provides higher precision, as it only returns data for the specified row key. In contrast, the Scan operation may return multiple row key data that meets certain conditions, requiring filtering and processing.

In general, the Get operation is suitable for retrieving data from a single row key, while the Scan operation is suitable for retrieving data within a certain range of row keys.