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https://github.com/dotnetcore/FreeSql.git
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50 lines
2.9 KiB
C#
50 lines
2.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Linq.Expressions;
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using System.Threading.Tasks;
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namespace FreeSql
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{
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public interface ISelect<T1, T2, T3, T4> : ISelect0<ISelect<T1, T2, T3, T4>, T1> where T1 : class where T2 : class where T3 : class where T4 : class
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{
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#if net40
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#else
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Task<bool> AnyAsync(Expression<Func<T1, T2, T3, T4, bool>> exp);
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Task<DataTable> ToDataTableAsync<TReturn>(Expression<Func<T1, T2, T3, T4, TReturn>> select);
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Task<List<TReturn>> ToListAsync<TReturn>(Expression<Func<T1, T2, T3, T4, TReturn>> select);
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Task<List<TDto>> ToListAsync<TDto>();
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Task<TReturn> ToAggregateAsync<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, TReturn>> select);
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Task<decimal> SumAsync<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
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Task<TMember> MinAsync<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
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Task<TMember> MaxAsync<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
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Task<double> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
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#endif
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bool Any(Expression<Func<T1, T2, T3, T4, bool>> exp);
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DataTable ToDataTable<TReturn>(Expression<Func<T1, T2, T3, T4, TReturn>> select);
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List<TReturn> ToList<TReturn>(Expression<Func<T1, T2, T3, T4, TReturn>> select);
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List<TDto> ToList<TDto>();
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string ToSql<TReturn>(Expression<Func<T1, T2, T3, T4, TReturn>> select, FieldAliasOptions fieldAlias = FieldAliasOptions.AsIndex);
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TReturn ToAggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, TReturn>> select);
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decimal Sum<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
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TMember Min<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
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TMember Max<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
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double Avg<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
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ISelect<T1, T2, T3, T4> LeftJoin(Expression<Func<T1, T2, T3, T4, bool>> exp);
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ISelect<T1, T2, T3, T4> InnerJoin(Expression<Func<T1, T2, T3, T4, bool>> exp);
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ISelect<T1, T2, T3, T4> RightJoin(Expression<Func<T1, T2, T3, T4, bool>> exp);
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ISelect<T1, T2, T3, T4> Where(Expression<Func<T1, T2, T3, T4, bool>> exp);
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ISelect<T1, T2, T3, T4> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, bool>> exp);
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ISelectGrouping<TKey, (T1, T2, T3, T4)> GroupBy<TKey>(Expression<Func<T1, T2, T3, T4, TKey>> exp);
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ISelect<T1, T2, T3, T4> OrderBy<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
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ISelect<T1, T2, T3, T4> OrderByDescending<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
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}
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} |