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20.4.3.1 Create, List, and Drop Collections
In MySQL Shell, you can create new collections, get a list of the existing collections in a schema, and remove an existing collection from a schema. Collection names are case-sensitive and each collection name must be unique.
Confirm the Schema
To show the value that is assigned to the schema variable, issue:
mysql-py> db
If the schema value is not Schema:world_x,
then set the db variable by issuing:
mysql-py> \use world_x
To create a new collection in an existing schema, use the
db object's
createCollection() method. The following
example creates a collection called flags
in the world_x schema.
mysql-py> db.create_collection("flags")The method returns a collection object.
<Collection:flags>
To display all collections in the world_x
schema, use the db object's
get_collections() method. Collections
returned by the server you are currently connected to appear
between brackets.
mysql-py> db.get_collections()
[
<Collection:countryinfo>,
<Collection:flags>
]
To drop an existing collection from a schema, use the
db object's
drop_collection() method. For example, to
drop the flags collection from the world_x
schema, issue:
mysql-py> session.drop_collection("world_x", "flags")
The drop_collection() method is also used
in MySQL Shell to drop a relational table from a schema.
See Collection Objects for more examples.
Document created the 26/06/2006, last modified the 26/10/2018
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