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.
Originally based upon relational algebra and tuple relational calculus, SQL consists of many types of statements, which may be informally classed as sublanguages, commonly: a data query language (DQL), a data definition language (DDL), a data control language (DCL), and a data manipulation language (DML).