ETL Tools for Data Warehouses. Designing and maintaining the ETL process is often considered one of the most difficult and resource-intensive portions of a data warehouse project. Many data warehousing projects use ETL tools to manage this process.
phalange (plural phalanges) ( 1 obsolete) A phalanx (of soldiers, people etc.). ( 2 anatomy) A phalanx. ( 3 rare) Alternative form of.
  Apparently, the singular form of bacteria is bacterium, but you can use the word bacteria for singular, too, and no one will correct you. If you are in science class or â¦ something, if you want to use a word other than bacteria for singular, then bacterium is the word to use.