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Can you tell me how I should translate below Progress SQL ?<br />
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a.facility_code = ifnull(nullif(?,''), a.facility_code) 
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Can you tell me how I should translate below Progress SQL ?

a.facility_code = ifnull(nullif(?,''), a.facility_code) 

Progress database syntax

Databases are organized collections of data, most commonly accessed through management systems including schemas, tables, queries and processes that allow users to enter and manipulate the information or utilize it in other fashions, such as with web applications or for reporting purposes.