The scope of SQL includes data insert, query, update and delete, schema creation and modification, and data access control. Although SQL is often described as, and to a great extent is, a declarative language, it also includes procedural elements. 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.
The presence of bile is indicated by a watery, yellow-green substance in the vomit contents. If vomiting does not occur and the bile remains in the stomach, the irritation to the stomach can lead to gastric reflux.
A little background. Always has been a very very nervous person. She has been throwing up bile now for 6 years. She describes it as foamy clean liquid. She can do this all day long on and off. It use to happen twice a year but now it happens once a week.