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- 增加 ISelect.First<Dto>() 方法;
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@ -48,6 +48,13 @@ namespace FreeSql
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/// <returns></returns>
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TReturn ToOne<TReturn>(Expression<Func<T1, TReturn>> select);
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Task<TReturn> ToOneAsync<TReturn>(Expression<Func<T1, TReturn>> select);
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/// <summary>
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/// 执行SQL查询,返回 TDto 映射的字段,记录不存在时返回 Dto 默认值
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/// </summary>
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/// <typeparam name="TDto"></typeparam>
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/// <returns></returns>
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TDto ToOne<TDto>();
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Task<TDto> ToOneAsync<TDto>();
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/// <summary>
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/// 执行SQL查询,返回指定字段的记录的第一条记录,记录不存在时返回 TReturn 默认值
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@ -57,6 +64,13 @@ namespace FreeSql
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/// <returns></returns>
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TReturn First<TReturn>(Expression<Func<T1, TReturn>> select);
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Task<TReturn> FirstAsync<TReturn>(Expression<Func<T1, TReturn>> select);
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/// <summary>
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/// 执行SQL查询,返回 TDto 映射的字段,记录不存在时返回 Dto 默认值
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/// </summary>
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/// <typeparam name="TDto"></typeparam>
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/// <returns></returns>
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TDto First<TDto>();
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Task<TDto> FirstAsync<TDto>();
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/// <summary>
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/// 返回即将执行的SQL语句
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