Table Of Contents

DB Tools Select Data (G Dataflow)

Last Modified: August 13, 2019

Selects table data from the database you specify.

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condition

Selection criteria for choosing data.

This SQL clause is appended to the end of a SELECT statement.

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connection reference

Reference to an ADO Connection object. Connection objects represent a connection with a data source, including methods to open and close a connection with a database, which database to connect with, and the level of isolation for database transactions.

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table

Name of the table in the database from which to select data.

You can specify multiple tables by using commas as the delimiter.

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columns

Target column in the table for data insertion.

Wire an empty array to this input if you want to use all columns in the table.

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error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error

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error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.
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data

2D array of variant data retrieved from the Recordset.

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connection reference out

Reference to an ADO Connection object. Connection objects represent a connection with a data source, including methods to open and close a connection with a database, which database to connect with, and the level of isolation for database transactions.

Data returned by this function

Select Data returns data as a 2D array of variants.

How to use data returned by this function

You can convert each element in the returned array to its native LabVIEW NXG data type by using Database Variant To Data.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application


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