Here are eight ways to keep the black dog at bay after you turn back the clocks.â I checked definition of âkeep the black dog at bayâ on several online dictionaries. None of Cambridge, Oxford, Merriam-Webster, and even Urban dictionary registers this phrase. What does keep the black dog at bay mean? Keep something or somebody at bay means to prevent something or someone unpleasant from coming too near you or harming you. Black dog means a bad mood, characterized by anger, depression, or a mixture of the two.
This term has been defined in many ways, but along similar lines. Doug Laney, then an analyst at the META Group, first defined big data in a 2001 report called â3-D Data Management: Controlling Data Volume, Velocity and Variety.â Volume refers to the sheer size of the datasets. Velocity refers to the speed at which the data is acquired and used.
SQL was one of the first commercial languages for Edgar F. Codd's relational model, as described in his influential 1970 paper, A Relational Model of Data for Large Shared Data Banks.. Despite not entirely adhering to the relational model as described by Codd, it became the most widely used database language.