System Variables

SQL Server Integration Services provides a set of system variables that store information about the running package and its objects. These variables can be used in expressions and property expressions to customize packages, containers, tasks, and event handlers.

All variables—system and user-defined— can be used in the parameter bindings that the Execute SQL task uses to map variables to parameters.

System Variables for Packages

The following table describes the system variables that Integration Services provides for packages.

System variable Data type Description
CancelEvent Int32 The handle to a Windows Event object that the task can signal to indicate that the task should stop running.
ContainerStartTime DateTime The start time of the container.
CreationDate DateTime The date that the package was created.
CreatorComputerName String The computer on which the package was created.
CreatorName String The name of the person who built the package.
ExecutionInstanceGUID String The unique identifier of the executing instance of a package.
FailedConfigurations String The names of package configurations that have failed.
IgnoreConfigurationsOnLoad Boolean Indicates whether package configurations are ignored when loading the package.
InteractiveMode Boolean Indicates whether the package is run in interactive mode. If a package is running in SSIS Designer, this property is set to True. If a package is running using the DTExec command prompt utility, the property is set to False.
LocaleId Int32 The locale that the package uses.
MachineName String The name of the computer on which the package is running.
OfflineMode Boolean Indicates whether the package is in offline mode. Offline mode does not acquire connections to data sources.
PackageID String The unique identifier of the package.
PackageName String The name of the package.
StartTime DateTime The time that the package started to run.
ServerExecutionID Int64 Execution ID for the package that is executed on the Integration Services server.

The default value is zero. The value is changed only if the package is executed by ISServerExec on the Integration Services Server. When there is a child package, the value is passed from the parent package to child package.
UserName String The account of the user who started the package. The user name is qualified by the domain name.
VersionBuild Int32 The package version.
VersionComment String Comments about the package version.
VersionGUID String The unique identifier of the version.
VersionMajor Int32 The major version of the package.
VersionMinor Int32 The minor version of the package.

System Variables for Containers

The following table describes the system variables that Integration Services provides for the For Loop, Foreach Loop, and Sequence containers.

System variable Data type Description Container
LocaleId Int32 The locale that the container uses. For Loop container

Foreach Loop container

Sequence container

System Variables for Tasks

The following table describes the system variables that Integration Services provides for tasks.

System variable Data type Description
CreationName String The name of the task.
LocaleId Int32 The locale that the task uses.
TaskID String The unique identifier of a task instance.
TaskName String The name of the task instance.
TaskTransactionOption Int32 The transaction option that the task uses.

System Variables for Event Handlers

The following table describes the system variables that Integration Services provides for event handlers. Not all variables are available to all event handlers.

System variable Data type Description Event handler
Cancel Boolean Indicates whether the event handler stops running when an error, warning, or query cancellation occurs. OnError event handler

OnWarning event handler

OnQueryCancel event handler
ErrorCode Int32 The error identifier. OnError event handler

OnInformation event handler

OnWarning event handler
ErrorDescription String The description of the error. OnError event handler

OnInformation event handler

OnWarning event handler
ExecutionStatus Boolean The current execution status. OnExecStatusChanged event handler
ExecutionValue DBNull The execution value. OnTaskFailed event handler
LocaleId Int32 The locale that the event handler uses. All event handlers
PercentComplete Int32 The percentage of completed work. OnProgress event handler
ProgressCountHigh Int32 The high part of a 64-bit value that indicates the total number of operations processed by the OnProgress event. OnProgress event handler
ProgressCountLow Int32 The low part of a 64-bit value that indicates the total number of operations processed by the OnProgress event. OnProgress event handler
ProgressDescription String Description of the progress. OnProgress event handler
Propagate Boolean Indicates whether the event is propagated to a higher level event handler.

Note: The value of the Propagate variable is disregarded during the validation of the package. If you set Propagate to False in a child package, this does not prevent an event from propagating up to the parent package.
All event handlers
SourceDescription String The description of the executable in the event handler that raised the event. All event handlers
SourceID String The unique identifier of the executable in the event handler that raised the event. All event handlers
SourceName String The name of the executable in the event handler that raised the event. All event handlers
VariableDescription String The variable description. OnVariableValueChanged event handler
VariableID String The unique identifier of the variable. OnVariableValueChanged event handler

System Variables in Parameter Bindings

It is frequently useful to save the values of system variables in tables when the package is run. For example, a package that dynamically creates a table and writes the GUID of the package execution instance that created the table in a table column.

If you use system variables to map to parameters in the SQL statement that an Execute SQL task uses, it is important that you set the data type of each parameter binding to the data type of the system variable. Otherwise, the values of system variables may be translated incorrectly. For example, if the ExecutionInstanceGUID system variable, which has the string data type and contains a string that represents the GUID of the executing instance of a package, is used in a parameter binding with the GUID data type, the GUID of the package instance will be translated incorrectly.

This rule applies to user-defined variables as well. But, whereas the data types of system variables cannot be changed and you have to tailor your use of these variables to fit the data types, user-defined are more flexible. The user-defined variables that are used in parameter bindings are usually defined with data types that are compatible with the data types of parameters to which they are mapped.

Map Query Parameters to Variables in an Execute SQL Task