When we perform any changes to the physical structure of the table in the database, we need DDL commands. CREATE, ALTER, RENAME, DROP, TRUNCATE, etc commands come into this category. Those commands can’t be rolled back. 1. CREATE:It is used to create a table or database. Query: CRE...
The following figure shows how Flink provides a variety of client operations to submit and interact with tasks, including the Flink command line, Scala Shell, SQL Client, Restful API, and Web. Among them, the most important is the command line, followed by the SQL Client for submitting SQL ...
The following figure shows how Flink provides a variety of client operations to submit and interact with tasks, including the Flink command line, Scala Shell, SQL Client, Restful API, and Web. Among them, the most important is the command line, followed by the SQL Client for submitting SQL ...