[Translation] Tricks with SQL from DBA. Not banal councils for developers of Big Data

When I began the career of the developer, DBA (the administrator of a database, ABD) became my first work. Those years, to AWS RDS, Azure, Google Cloud Platform and other cloudy services, existed two ABD:ABD types of infrastructure were responsible for database control , a configuration of storage and care of backup copies and replication. After control of Big Data the infrastructure administrator from time to time "adjusted copies", for example, specified the sizes of caches. ABD of the appendix received pure base from infrastructure ABD and was responsible for it architecture: creation of tables, indexes, restrictions and SQL control...