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select * from concat(',', ServiceCodes, ',') like '%,33,%';
»òselect * from (','||ServiceCodes||',') like '%,33,%';

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C# code:

or.Add(Restrictions.Like(Projections.SqlFunction("concat", NHibernateUtil.String, Projections.Property("ServiceCodes")), "%," + item + ",%"));


//....

Projections.SqlFunctionº¯ÊýµÚÈý¸ö²ÎÊýÊÇparams IProjection[] projections£¬µ«ÊǶÔÓÚ¶ººÅ(,)ÎÒ²»ÖªµÀÔõô´´½¨IProjectionÀàËÆ¡£


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select * from concat(',', ServiceCodes, ',') like '%,33,%';
»òselect * from (','||ServiceCodes||',') like '%,33,%';

->

select * from table where concat(',', ServiceCodes, ',') like '%,33,%';
»òselect * from table where (','||ServiceCodes||',') like '%,33,%';


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