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POwhy DbCommandBuilder (Oracle) produces weird WHERE-clause to UpdateCommand?
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2010-03-25T11:55:07
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2016-10-20T09:57:08.303
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2010-03-25T14:00:06.720
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I have a table HolidayHome in oracle db which has unique db index on Id (I haven't specified this in the code in any way for adapter/table/dataset, don't know if i should/can). DbDataAdapter.SelectCommand is like this: <pre> SELECT Id, ExtId, Label, Location1, Location2, Location3, Location4, ClassId, X, Y, UseType FROM HolidayHome </pre> but UpdateCommand generated by DbCommandBuilder has very weird where clause: <pre> UPDATE HOLIDAYHOME SET ID = :p1, EXTID = :p2, LABEL = :p3, LOCATION1 = :p4, LOCATION2 = :p5, LOCATION3 = :p6, LOCATION4 = :p7, CLASSID = :p8, X = :p9, Y = :p10, USETYPE = :p11 WHERE ((ID = :p12) AND ((:p13 = 1 AND EXTID IS NULL) OR (EXTID = :p14)) AND ((:p15 = 1 AND LABEL IS NULL) OR (LABEL = :p16)) AND ((:p17 = 1 AND LOCATION1 IS NULL) OR (LOCATION1 = :p18)) AND ((:p19 = 1 AND LOCATION2 IS NULL) OR (LOCATION2 = :p20)) AND ((:p21 = 1 AND LOCATION3 IS NULL) OR (LOCATION3 = :p22)) AND ((:p23 = 1 AND LOCATION4 IS NULL) OR (LOCATION4 = :p24)) AND (CLASSID = :p25) AND (X = :p26) AND (Y = :p27) AND (USETYPE = :p28)) </pre> all these fields that have like: <pre> ((:p17 = 1 AND LOCATION1 IS NULL) OR (LOCATION1 = :p18)) </pre> are defined in oracle db like this: <pre> LOCATION1 VARCHAR2(30) </pre> so they allow null values. the code looks like this: <pre> static bool CreateInsertUpdateDeleteCmds(DbDataAdapter dataAdapter) { DbCommandBuilder builder = _trgtProvFactory.CreateCommandBuilder(); builder.DataAdapter = dataAdapter; // Get the insert, update and delete commands. dataAdapter.InsertCommand = builder.GetInsertCommand(); dataAdapter.UpdateCommand = builder.GetUpdateCommand(); dataAdapter.DeleteCommand = builder.GetDeleteCommand(); } </pre> what to do? The UpdateCommand is utter madness. Thanks & Best Regards: Matti
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why DbCommandBuilder (Oracle) produces weird WHERE-clause to UpdateCommand?
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