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Many databases offer the capability to store custom code in the database, primarily as functions and procedures, where a function has a return value but a procedure does not (a procedure may instead have output parameters). In addition, some databases offer a package concept, which means that a collection of functions and/or procedures are grouped together in one unit. A package is the interface describing the functions and procedures, while the package body contains the implementation. Many databases also support triggers: code that is executed when triggered by an event such as deleting a row in a table. 

You can use DbVisualizer actions to create and drop procedural object of these types, and use the code editor to browse, edit and compile these object types. Procedures and functions can also be executed in the SQL Commander, with return values and parameters bound to DbVisualizer variables.


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