CTE (1) 썸네일형 리스트형 [Syntax] Writing Efficient Query 1. Views In a database, a View is the result set of a stored query on the data, which the database users can query just as they would in a persistent database collection object. This pre-established query command is kept in the database dictionary. Unlike ordinary base tables in relational database, a view doesn't form part of physical schema. A a result, it is a virtual table computed or collec.. 이전 1 다음