What are the different ways to delete data in HBase?
There are several ways to delete data in HBase.
- remove
delete '<table_name>', '<row_key>'
- remove all
deleteall '<table_name>', '<row_key>'
- remove
delete '<table_name>', '<row_key>', '<column_family>:<column_qualifier>'
- Bulk delete: You can use batch operations to delete multiple rows of data.
deleteall '<table_name>', '<row1>', '<row2>', ..., '<rowN>'
- To delete all data in a table, you can achieve this by dropping the table and then recreating it.
disable '<table_name>'
drop '<table_name>'
create '<table_name>', '<column_family1>', '<column_family2>', ..., '<column_familyN>'
Please note that the above operations are commands executed in the HBase Shell, and the same operations can also be performed using HBase’s Java API.