Clean the surface of your pond with a skimmer or algae net. 12. Vacuum the algae from the pond with a pond vacuum. 13. Place barley straw in a location that provides a good flow of water and sunlight. The barley straw will decompose adding hydrogen peroxide to the water, killing the algae.
SQL (Structured Query Language) SQL (Structured Query Language) is a standardized programming language used for managing relational databases and performing various operations on the data in them.
Freebase (0.00 / 0 votes) Rate this definition: sql SQL is a special-purpose programming language designed for managing data held in a relational database management system. Originally based upon relational algebra and tuple relational calculus, SQL consists of a data definition language and a data manipulation language.