Data Lake Analytics (DLA) allows you to query and analyze data stored in Object Storage Service (OSS), ApsaraDB RDS, Tablestore, PolarDB, ApsaraDB for Redis, ApsaraDB for MongoDB, and AnalyticDB for MySQL.
The DLA result data can be displayed on a terminal or written into OSS. If you run an asynchronous query, the query result is automatically written into OSS. If you run a synchronous query, the query result is not automatically written into OSS. You can set the hint parameter force-persist-result to true or false to determine whether to write the query result into OSS.
DLA allows you to create a maximum of 10 JDBC connections by using a client IP address at a time. In addition, DLA allows you to initiate a maximum of 10 JDBC connection requests by using a client IP address within one minute.
By default, DLA allows you to use an Alibaba Cloud account to create a maximum of 100 schemas. You can create a maximum of 4,096 tables under each schema. Each table can contain a maximum of 4,096 columns.
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