22.3.4.4 Delete Tables

You can use the delete() method to remove some or all records from a table in a database. The X DevAPI provides additional methods to use with the delete() method to filter and order the records to be deleted.

Delete Records Using Conditions

The following example passes search conditions to the delete() method. All records matching the condition are deleted from the city table. In this example, one record matches the condition.

mysql-js> db.city.delete().where("Name = 'Olympia'")

Delete the First Record

To delete the first record in the city table, use the limit() method with a value of 1.

mysql-js> db.city.delete().limit(1)

Delete All Records in a Table

You can delete all records in a table. To do so, use the delete() method without specifying a search condition.

Caution

Use care when you delete records without specifying a search condition; doing so deletes all records from the table.

Drop a Table

The dropCollection() method is also used in MySQL Shell to drop a relational table from a database. For example, to drop the citytest table from the world_x database, issue:

mysql-js> session.dropCollection("world_x", "citytest")

Related Information

• See TableDeleteFunction for the full syntax definition.

• See Section 22.3.2, “Download and Import world_x Database” for instructions to recreate the world_x database.