RE: SQL design discussion - help required

SSC Guru

Points: 323504

January 28, 2013 at 9:51 am

besides identifying the columns in the table, you need another attribute to identify what makes a collection of columns unique, especially if it's not the PK of the table and there's no unique constraint.;

for example,

<fieldMapping DefaultField="Lastname" databaseField="Surname" IsPartOfUniqueCriteria="true">

then your app can use Linq or whatever to group the data by the IsPartOfUniqueCriteria=true columns and look for duplicates;

Lowell

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