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pgsql/mysql/sqlserver适配

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2018-12-18 20:09:52 +08:00
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FreeSql/Interface/Curd/ISelect/ISelect3.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq.Expressions;
namespace FreeSql {
public interface ISelect<T1, T2, T3> : ISelect0<ISelect<T1, T2, T3>, T1> where T1 : class where T2 : class where T3 : class {
List<TReturn> ToList<TReturn>(Expression<Func<T1, T2, T3, TReturn>> select);
TMember Sum<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
TMember Min<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
TMember Max<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
TMember Avg<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
ISelect<T1, T2, T3> Where(Expression<Func<T1, T2, T3, bool>> exp);
ISelect<T1, T2, T3> WhereIf(bool condition, Expression<Func<T1, T2, T3, bool>> exp);
ISelect<T1, T2, T3> WhereLike(Expression<Func<T1, T2, T3, string[]>> columns, string pattern, bool notLike = false);
ISelect<T1, T2, T3> WhereLike(Expression<Func<T1, T2, T3, string>> column, string pattern, bool notLike = false);
ISelect<T1, T2, T3> GroupBy(Expression<Func<T1, T2, T3, object>> columns);
ISelect<T1, T2, T3> OrderBy<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
ISelect<T1, T2, T3> OrderByDescending<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
}
}