diff --git a/Src/Asp.NetCore2/SqlSugar.OceanBaseForOracle/OceanBase/SqlBuilder/OceanBaseForOracleExpressionContext.cs b/Src/Asp.NetCore2/SqlSugar.OceanBaseForOracle/OceanBase/SqlBuilder/OceanBaseForOracleExpressionContext.cs
index 31c8bc592..5fc03c9aa 100644
--- a/Src/Asp.NetCore2/SqlSugar.OceanBaseForOracle/OceanBase/SqlBuilder/OceanBaseForOracleExpressionContext.cs
+++ b/Src/Asp.NetCore2/SqlSugar.OceanBaseForOracle/OceanBase/SqlBuilder/OceanBaseForOracleExpressionContext.cs
@@ -16,6 +16,7 @@ namespace SqlSugar.OceanBaseForOracle
         public OceanBaseForOracleExpressionContext()
         {
             base.DbMehtods = new OceanBaseForOracleMethod();
+            base.Case = new ExpressionContextCase();
         }
         public override string SqlParameterKeyWord
         {
@@ -76,7 +77,7 @@ namespace SqlSugar.OceanBaseForOracle
         public override string GetLimit()
         {
             int num = 1;
-            if (this.Case?.Num != 1)
+            if (this.Case?.Num > 1)
             {
                 num = this.Case.Num;
             }
diff --git a/Src/Asp.NetCore2/SqlSugar.TDSQLForPGODBC/TDSQLForPG/SqlBuilder/TDSQLForPGODBCExpressionContext.cs b/Src/Asp.NetCore2/SqlSugar.TDSQLForPGODBC/TDSQLForPG/SqlBuilder/TDSQLForPGODBCExpressionContext.cs
index 05cb81a82..c8b713ef9 100644
--- a/Src/Asp.NetCore2/SqlSugar.TDSQLForPGODBC/TDSQLForPG/SqlBuilder/TDSQLForPGODBCExpressionContext.cs
+++ b/Src/Asp.NetCore2/SqlSugar.TDSQLForPGODBC/TDSQLForPG/SqlBuilder/TDSQLForPGODBCExpressionContext.cs
@@ -8,6 +8,7 @@ namespace SqlSugar.TDSQLForPGODBC
         public TDSQLForPGODBCExpressionContext()
         {
             base.DbMehtods = new TDSQLForPGODBCMethod();
+            base.Case = new ExpressionContextCase();
         }
         public override string SqlTranslationLeft
         {
@@ -134,7 +135,7 @@ namespace SqlSugar.TDSQLForPGODBC
         public override string GetLimit()
         {
             int num = 1;
-            if (this.Case.Num != 1)
+            if (this.Case.Num > 1)
             {
                 num = this.Case.Num;
             }
diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/Items/SubTake.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/Items/SubTake.cs
index 534fa0a5d..3270810e6 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/Items/SubTake.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/Items/SubTake.cs
@@ -82,12 +82,9 @@ namespace SqlSugar
             }
             else if (this.Context.GetLimit() != null)
             {
-                if (this?.Context?.Case?.HasWhere == true)
+                if (this?.Context?.Case != null)
                 {
                     this.Context.Case.HasWhere = this.HasWhere;
-                }
-                if (this?.Context?.Case?.Num != 1)
-                {
                     this.Context.Case.Num = num;
                 }
                 return this.Context.GetLimit();
diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/Items/SubTop.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/Items/SubTop.cs
index 312ed677b..a9396d65a 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/Items/SubTop.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/Items/SubTop.cs
@@ -67,7 +67,7 @@ namespace SqlSugar
             }
             else if (this.Context.GetLimit()!=null)
             {
-                if (this?.Context?.Case?.HasWhere == true)
+                if (this?.Context?.Case != null)
                 {
                     this.Context.Case.HasWhere = this.HasWhere;
                 }