diff --git a/CoreCms.Net.Model/Entities/Expression/PredicateBuilder.cs b/CoreCms.Net.Model/Entities/Expression/PredicateBuilder.cs
index 0af59b1..7961e1a 100644
--- a/CoreCms.Net.Model/Entities/Expression/PredicateBuilder.cs
+++ b/CoreCms.Net.Model/Entities/Expression/PredicateBuilder.cs
@@ -51,7 +51,7 @@ namespace CoreCms.Net.Model.Entities.Expression
         public static Expression<Func<T, bool>> And<T>(this Expression<Func<T, bool>> first,
             Expression<Func<T, bool>> second)
         {
-            return first.Compose(second, System.Linq.Expressions.Expression.And);
+            return first.Compose(second, System.Linq.Expressions.Expression.AndAlso);
         }
 
         public static Expression<Func<T, bool>> Or<T>(this Expression<Func<T, bool>> first,
diff --git a/CoreCms.Net.Repository/Bill/CoreCmsBillDeliveryRepository.cs b/CoreCms.Net.Repository/Bill/CoreCmsBillDeliveryRepository.cs
index eab1948..21a3143 100644
--- a/CoreCms.Net.Repository/Bill/CoreCmsBillDeliveryRepository.cs
+++ b/CoreCms.Net.Repository/Bill/CoreCmsBillDeliveryRepository.cs
@@ -41,30 +41,21 @@ namespace CoreCms.Net.Repository
         /// <returns></returns>
         public async Task<List<StatisticsOut>> Statistics()
         {
-            var dt = DateTime.Now.AddDays(-8).ToString("yyyy-MM-dd 00:00:00");
+            var dt = DateTime.Now.AddDays(-8);
 
-            var sqlStr = string.Empty;
-            string dbTypeString = AppSettingsConstVars.DbDbType;
-            if (dbTypeString == DbType.SqlServer.ToString())
-            {
-                sqlStr = @"SELECT  count(1) AS nums,CONVERT(varchar(100),createTime, 23)  AS day
-                            FROM  CoreCmsBillDelivery
-                            WHERE createTime >= '" + dt + @"'  
-                            GROUP BY CONVERT(varchar(100),createTime, 23)";
-            }
-            else if (dbTypeString == DbType.MySql.ToString())
-            {
-                sqlStr = @"SELECT  count(1) AS nums,date(createTime)  AS day
-                            FROM  CoreCmsBillDelivery
-                            WHERE createTime >= '" + dt + @"'  
-                            GROUP BY date(createTime)";
-            }
+            var list = await DbClient.Queryable<CoreCmsBillDelivery>()
+                .Where(p => p.createTime >= dt)
+                .Select(it => new
+                {
+                    it.deliveryId,
+                    createTime = it.createTime.Date
+                })
+                .MergeTable()
+                .GroupBy(it => it.createTime)
+                .Select(it => new StatisticsOut { day = it.createTime.ToString("yyyy-MM-dd"), nums = SqlFunc.AggregateCount(it.deliveryId) })
+                .ToListAsync();
 
-            if (string.IsNullOrEmpty(sqlStr))
-            {
-                return null;
-            }
-            return await DbClient.SqlQueryable<StatisticsOut>(sqlStr).ToListAsync();
+            return list;
         }
 
     }
diff --git a/CoreCms.Net.Repository/Bill/CoreCmsBillPaymentsRepository.cs b/CoreCms.Net.Repository/Bill/CoreCmsBillPaymentsRepository.cs
index d2d20ca..d69dc92 100644
--- a/CoreCms.Net.Repository/Bill/CoreCmsBillPaymentsRepository.cs
+++ b/CoreCms.Net.Repository/Bill/CoreCmsBillPaymentsRepository.cs
@@ -41,31 +41,20 @@ namespace CoreCms.Net.Repository
         /// <returns></returns>
         public async Task<List<StatisticsOut>> Statistics()
         {
-            var dt = DateTime.Now.AddDays(-8).ToString("yyyy-MM-dd 00:00:00");
+            var dt = DateTime.Now.AddDays(-8);
 
-            var sqlStr = string.Empty;
-            string dbTypeString = AppSettingsConstVars.DbDbType;
-            if (dbTypeString == DbType.SqlServer.ToString())
-            {
-                sqlStr = @"SELECT  count(1) AS nums,CONVERT(varchar(100),createTime, 23)  AS day
-                            FROM  CoreCmsBillPayments
-                            WHERE createTime >= '" + dt + @"' AND status = " + (int)GlobalEnumVars.BillPaymentsStatus.Payed + @" AND type=" + (int)GlobalEnumVars.BillPaymentsType.Order + @" 
-                            GROUP BY CONVERT(varchar(100),createTime, 23)";
-            }
-            else if (dbTypeString == DbType.MySql.ToString())
-            {
-                sqlStr = @"SELECT  count(1) AS nums,date(createTime) AS day
-                            FROM  CoreCmsBillPayments
-                            WHERE createTime >= '" + dt + @"' AND status = " + (int)GlobalEnumVars.BillPaymentsStatus.Payed + @" AND type=" + (int)GlobalEnumVars.BillPaymentsType.Order + @" 
-                            GROUP BY date(createTime)";
-            }
+            var list = await DbClient.Queryable<CoreCmsBillPayments>()
+                .Where(p => p.createTime >= dt && p.status == (int)GlobalEnumVars.BillPaymentsStatus.Payed && p.type == (int)GlobalEnumVars.BillPaymentsType.Order)
+                .Select(it => new
+                {
+                    it.paymentId,
+                    createTime = it.createTime.Date
+                })
+                .MergeTable()
+                .GroupBy(it => it.createTime)
+                .Select(it => new StatisticsOut { day = it.createTime.ToString("yyyy-MM-dd"), nums = SqlFunc.AggregateCount(it.paymentId) })
+                .ToListAsync();
 
-            if (string.IsNullOrEmpty(sqlStr))
-            {
-                return null;
-            }
-
-            var list = await DbClient.SqlQueryable<StatisticsOut>(sqlStr).ToListAsync();
             return list;
         }
 
diff --git a/CoreCms.Net.Repository/User/CoreCmsUserRepository.cs b/CoreCms.Net.Repository/User/CoreCmsUserRepository.cs
index 295704d..0fc8bb9 100644
--- a/CoreCms.Net.Repository/User/CoreCmsUserRepository.cs
+++ b/CoreCms.Net.Repository/User/CoreCmsUserRepository.cs
@@ -150,30 +150,19 @@ namespace CoreCms.Net.Repository
         /// <returns></returns>
         public async Task<List<StatisticsOut>> Statistics(int day)
         {
-            var dt = DateTime.Now.AddDays(-day).ToString("yyyy-MM-dd");
+            var dt = DateTime.Now.AddDays(-day);
+            var list = await DbClient.Queryable<CoreCmsUser>()
+                .Where(p => p.createTime >= dt)
+                .Select(it => new
+                {
+                    it.id,
+                    createTime = it.createTime.Date
+                })
+                .MergeTable()
+                .GroupBy(it => it.createTime)
+                .Select(it => new StatisticsOut { day = it.createTime.ToString("yyyy-MM-dd"), nums = SqlFunc.AggregateCount(it.id) })
+                .ToListAsync();
 
-            var sqlStr = string.Empty;
-            string dbTypeString = AppSettingsConstVars.DbDbType;
-            if (dbTypeString == DbType.SqlServer.ToString())
-            {
-                sqlStr = @"SELECT  count(1) AS nums,CONVERT(varchar(100),createTime, 23)  AS day
-                            FROM  CoreCmsUser
-                            WHERE createTime > '" + dt + @"'  
-                            GROUP BY CONVERT(varchar(100),createTime, 23)";
-            }
-            else if (dbTypeString == DbType.MySql.ToString())
-            {
-                sqlStr = @"SELECT  count(1) AS nums,date(createTime)  AS day
-                            FROM  CoreCmsUser
-                            WHERE createTime > '" + dt + @"'  
-                            GROUP BY date(createTime)";
-            }
-            if (string.IsNullOrEmpty(sqlStr))
-            {
-                return null;
-            }
-
-            var list = await DbClient.SqlQueryable<StatisticsOut>(sqlStr).ToListAsync();
             return list;
         }