Saturday, 12 July 2014

What are DML statements?


DML(Data Manipulation Language) statements enable users to query or manipulate data in existing schema objects. These are:
  • DELETE- used to remove rows from tables or views
  • INSERT- used to add new rows of data into tables or views
  • SELECT- used to retrieve data from one or more tables
  • UPDATE- used to change column values in existing rows of a table or view

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