Each INFORMATION_SCHEMA schema is read-only (i.e. the schema, and all the views and table functions in the schema, cannot be modified or dropped). Queries on INFORMATION_SCHEMA views do not guarantee consistency with respect to concurrent DDL. For example, if a set of tables are created w...
MongoDB、Couchbase Server和Apache Cassandra等文档存储近年来越来越受到应用程序开发人员的欢迎,因为它们提供了可伸缩性、简单性和灵活的schema。然而,这些系统的简单key value和CRUD(create、read、update和delete)的API带来的一个挑战是难以表达更复杂的查询。我们看到了一些类似SQL的查询语言的出现,比如用于Couchbase的...
("schema","schema_name")# Optional - will use default schema "public" if not specified..option("dbtable","table_name").load())# The following example applies to Databricks Runtime 10.4 and below.snowflake_table=(spark.read.format("snowflake").option("dbtable",table_name).option("sf...
jsonReader - The JsonReader being read. Returns: An instance of SnowflakeDataset if the JsonReader was pointing to an instance of it, or null if it was pointing to JSON null. Throws: IOException - If the deserialized JSON object was missing any required properties. schemaTypePropertiesSche...
ConnectionString = "account=testaccount;authenticator=snowflake_jwt;user=testuser;private_key_file={pathToThePrivateKeyFile};private_key_pwd={passwordForDecryptingThePrivateKey};db=testdb;schema=testschema"; conn.Open(); conn.Close(); } where: {pathToThePrivateKeyFile} is the path to the...
GRANT USAGE ON ALL PROCEDURES IN DATABASE <your_database_name> TO role purview_reader; GRANT SELECT ON ALL TABLES IN DATABASE <your_database_name> TO role purview_reader; GRANT SELECT ON ALL VIEWS IN DATABASE <your_database_name> TO role purview_reader; GRANT USAGE, READ on ALL STAGES...
DATABASE_ID: "1" DATABASE_NAME:"SNOWFLAKE" SCHEMA_ID: "3" SCHEMA_NAME: "ACCOUNT_USAGE"QUERY_TYPE: "SELECT" SESSION_ID: "1111111111111"USER_NAME: "TEST" ROLE_NAME:"ACCOUNTADMIN" WAREHOUSE_ID: "1" WAREHOUSE_NAME: "COMPUTE_WH" WAREHOUSE_SIZE: "X-Small" WAREHOUSE_TYPE: "STANDARD" ...
("schema","schema_name")# Optional - will use default schema "public" if not specified..option("dbtable","table_name") .load() )# The following example applies to Databricks Runtime 10.4 and below.snowflake_table = (spark.read .format("snowflake") .option("dbtable", table_name) ....
GRANT USAGE ON ALL PROCEDURES IN DATABASE <your_database_name> TO role purview_reader; GRANT SELECT ON ALL TABLES IN DATABASE <your_database_name> TO role purview_reader; GRANT SELECT ON ALL VIEWS IN DATABASE <your_database_name> TO role purview_reader; GRANT USAGE, READ on ALL STAGES...
Deadlocks cannot occur while autocommit query statements are being executed concurrently. This is true for both standard tables and hybrid tables because SELECT statements are always read-only. Deadlocks cannot occur with autocommit DML operations on standard tables, but they can occur with autocommit ...