What are the different methods for deleting data in PostgreSQL?

In PostgreSQL, data can be deleted using the following methods:

1. Delete data using the DELETE statement: The DELETE statement can be used to remove data from a table. The syntax is as follows:
2. Remove data from the table where the specified condition is met.
3. table_name is the name of the table from which data needs to be deleted, and condition is the criteria for deleting the data, which can be specified as needed.
4. To delete data using the TRUNCATE statement: The TRUNCATE statement can be used to delete all data in a table while keeping the table structure intact. The syntax is as follows:
5. Clear all data from table_name.
6. “Where table_name is the name of the table from which data needs to be deleted.”
7. Drop a table using the DROP TABLE statement: The DROP TABLE statement can be used to delete an entire table, including both the data and structure of the table. The syntax is as follows:
8. Delete the table named table_name.
9. “Among them, table_name is the name of the table to be deleted.”

Caution: Deleting data is a risky operation, please use it cautiously and always back up important data.