pyspark.sql.Catalog.databaseExists

Catalog.databaseExists(dbName: str) → bool[source]

Check if the database with the specified name exists.

New in version 3.3.0.

Parameters
dbNamestr

name of the database to check existence

Changed in version 3.4.0: Allow dbName to be qualified with catalog name.

Returns
bool

Indicating whether the database exists

Examples

Check if ‘test_new_database’ database exists

>>> spark.catalog.databaseExists("test_new_database")
False
>>> _ = spark.sql("CREATE DATABASE test_new_database")
>>> spark.catalog.databaseExists("test_new_database")
True

Using the fully qualified name with the catalog name.

>>> spark.catalog.databaseExists("spark_catalog.test_new_database")
True
>>> _ = spark.sql("DROP DATABASE test_new_database")

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