[CBRD-25372] Create views without type checking

[beyondykk9]

http://jira.cubrid.org/browse/CBRD-25372 When CUBRID creates a view using the "CREATE VIEW ... AS SELECT ..." statement, it checks whether type conversion is possible for each column of the view. However, in the case of Oracle, the view is created without performing this type check. Type conversion is checked when the created view is executed, and if type conversion is not possible, an error is processed.