diff --git a/Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleCodeFirst.cs b/Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleCodeFirst.cs
index 47eb5034..77f7d095 100644
--- a/Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleCodeFirst.cs
+++ b/Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleCodeFirst.cs
@@ -197,7 +197,7 @@ nvl((select 1 from user_triggers where upper(trigger_name)=upper('{Utils.GetCsNa
 b.comments
 from all_tab_columns a
 left join all_col_comments b on b.owner = a.owner and b.table_name = a.table_name and b.column_name = a.column_name
-where a.owner={{0}} and a.table_name={{1}}", tboldname ?? tbname);
+where a.owner={{0}} and a.table_name={{1}} and a.column_id is not null", tboldname ?? tbname);
                 var ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
                 var tbstruct = ds.ToDictionary(a => string.Concat(a[0]), a =>
                 {
diff --git a/Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleDbFirst.cs b/Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleDbFirst.cs
index e07f4437..3d75a870 100644
--- a/Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleDbFirst.cs
+++ b/Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleDbFirst.cs
@@ -331,7 +331,7 @@ to_char(b.comments),
 nvl(FREESQL_LONG_TO_CHAR_DEFAULT(a.table_name, a.column_name),'')
 from all_tab_cols a
 left join all_col_comments b on b.owner = a.owner and b.table_name = a.table_name and b.column_name = a.column_name
-where {(ignoreCase ? "lower(a.owner)" : "a.owner")} in ({databaseIn}) and {loc8}
+where {(ignoreCase ? "lower(a.owner)" : "a.owner")} in ({databaseIn}) and {loc8} and a.column_id is not null
 ";
             ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
             if (ds == null) return loc1;
diff --git a/Providers/FreeSql.Provider.Oracle/OracleCodeFirst.cs b/Providers/FreeSql.Provider.Oracle/OracleCodeFirst.cs
index e6a22742..e125eb65 100644
--- a/Providers/FreeSql.Provider.Oracle/OracleCodeFirst.cs
+++ b/Providers/FreeSql.Provider.Oracle/OracleCodeFirst.cs
@@ -198,7 +198,7 @@ nvl((select 1 from user_triggers where upper(trigger_name)=upper('{Utils.GetCsNa
 b.comments
 from all_tab_columns a
 left join all_col_comments b on b.owner = a.owner and b.table_name = a.table_name and b.column_name = a.column_name
-where a.owner={{0}} and a.table_name={{1}}", tboldname ?? tbname);
+where a.owner={{0}} and a.table_name={{1}} and a.column_id is not null", tboldname ?? tbname);
                 var ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
                 var tbstruct = ds.ToDictionary(a => string.Concat(a[0]), a =>
                 {
diff --git a/Providers/FreeSql.Provider.Oracle/OracleDbFirst.cs b/Providers/FreeSql.Provider.Oracle/OracleDbFirst.cs
index fc249b8d..a5036b80 100644
--- a/Providers/FreeSql.Provider.Oracle/OracleDbFirst.cs
+++ b/Providers/FreeSql.Provider.Oracle/OracleDbFirst.cs
@@ -331,7 +331,7 @@ to_char(b.comments),
 nvl(FREESQL_LONG_TO_CHAR_DEFAULT(a.table_name, a.column_name),'')
 from all_tab_cols a
 left join all_col_comments b on b.owner = a.owner and b.table_name = a.table_name and b.column_name = a.column_name
-where {(ignoreCase ? "lower(a.owner)" : "a.owner")} in ({databaseIn}) and {loc8}
+where {(ignoreCase ? "lower(a.owner)" : "a.owner")} in ({databaseIn}) and {loc8} and a.column_id is not null
 ";
             ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
             if (ds == null) return loc1;