# ICommand.h File Reference

`#include <FdoStd.h>`
`#include <Fdo/Connections/IConnection.h>`
`#include <Fdo/Connections/ITransaction.h>`
`#include <Fdo/Commands/ParameterValueCollection.h>`

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## Classes
class | FdoICommand
| The FdoICommand interface defines behavior common to all commands in FDO. In order to be executed, commands must have an association to a connection. Commands can also be optionally associated with a transaction if the connection supports transactions. The parameter values collection allows values to be specified for commands that support expressions and/or filters. More...