You are here: NI Home > Support > Product Reference > Manuals > LabVIEW 8.6 Datalogging and Supervisory Control Module Help

Owning Palette: Database Management VIs

Installed With: DSC Module

Programmatically removes the logical connection between the LabVIEW Datalogging and Supervisory Control (DSC) Module and a Citadel database and removes the database from the tree view of the Historical Data Viewer in Measurement & Automation Explorer (MAX).

Details  

	timeout limits the time that the VI waits for data to be returned from the database. The default value is 30 seconds. A timeout value of less than or equal to 0 indicates no timeout, and the VI waits indefinitely until the data is returned. The VI ignores this value if you set show status bar to TRUE.
	database name is the name of the Citadel database which you want to detach. Note  This VI does not operate on a remote database.
	error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	show status bar enables a progress bar during the operation if show status bar is TRUE.
	error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.

Detach Database Details

When you detach a Citadel database, National Instruments software no longer recognizes the database. Detach a database if you want to manually move the database files.

Note  To attach or reattach a database, use the Create Database VI or the Create Database command in the Historical Data Viewer in MAX.

Refer to the Measurement & Automation Explorer Help for Historical Data Viewer, available by selecting Help»Help Topics»Historical Data Viewer in MAX, for more information about creating, attaching, and detaching Citadel databases.