Hi, I need to evaluate an expression that I have stored in a table, and not sure how to force evaluation of a column value.
Some background. This is a generic testing application that we're using to test source to target ETL's. The specifics of the test expression depend on the actual tables involved. Typicallly it's been table_a.col_a = table_b.col_b but now they want to use inequality or other operators. The tester's define the test criteria in a table, then we use that criteria to actually score the runtime results. In my design I have 3 tables. Test - stores the test definition Testrun - stores the actual sql for a specific execution of a test Testscore - stores the actual values of the source and target values. The scores are stored in different rows, with a common name to allow them to be matched in the query. The pass/fail query looks something like this Update testscore Set metricstatus = case when table_a.col_a = table_b.col_b then 'PASS' else 'FAIL' end .. Where testrunid=x I want to replace the table_a.col_a = table_b.col_b with the expression stored in the test table and evaluate. I'm thinking - it's dynamic sql, so I need to build the statement and then evaluate using a function. Anybody have any comments? Thanks Doug Little Sr. Data Warehouse Architect | Business Intelligence Architecture | Orbitz Worldwide 500 W. Madison, Suite 1000 Chicago IL 60661| Office 312.260.2588 | Fax 312.894.5164 | Cell 847-997-5741 douglas.lit...@orbitz.com<mailto:douglas.lit...@orbitz.com> [cid:image001.jpg@01CDDD06.E43D5760] orbitz.com<http://www.orbitz.com/> | ebookers.com<http://www.ebookers.com/> | hotelclub.com<http://www.hotelclub.com/> | cheaptickets.com<http://www.cheaptickets.com/> | ratestogo.com<http://www.ratestogo.com/> | asiahotels.com<http://www.asiahotels.com/>
<<inline: image001.jpg>>
