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How to perform an update query from a UDF that receives parameters from multiple tables?

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Last Modified: 2016-08-02
Hi Experts,

I have a table called Employeestbl

I would like to perform an update to a field of this table to all records that a UDF called EmployeesMissingDocs returns '1'.

Now my main issue is that this UDF expects values as parameters from different tables.

See example below

FUNCTION [dbo].[EmployeesMissingDocs] (
@EmployeeID int,
@Title varchar(50) = null,
@LicenseNumSignedYN bit = null,
@LicenseExpires DATETIME= null,
@BclsExpires DATETIME= null 
) RETURNS VARCHAR(2000)

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Where EmployeeID and Title come from Employeestbl, License info come from a second table and Bcls from a third one..

How can I perform this in a single update statement?
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Data Warehouse / Database Architect
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