@@ -146,14 +146,14 @@ public enum GaussDBDbType
146146 Varchar = 22 ,
147147
148148 /// <summary>
149- /// Variable-length string. It is the alias of the NVARCHAR2(n) type .
149+ /// Variable-length string. For Oracle compatibility .
150150 /// </summary>
151151 Varchar2 = 2223 ,
152152
153153 /// <summary>
154- /// Variable-length string.
154+ /// Variable-length string. For Oracle compatibility.
155155 /// </summary>
156- Nvarchar2 = 2224 ,
156+ NVarchar2 = 2224 ,
157157
158158 /// <summary>
159159 /// Corresponds to the PostgreSQL internal "name" type.
@@ -635,7 +635,7 @@ public static DbType ToDbType(this GaussDBDbType gaussdbDbType)
635635 GaussDBDbType . Xml => DbType . Xml ,
636636 GaussDBDbType . Varchar => DbType . String ,
637637 GaussDBDbType . Varchar2 => DbType . String ,
638- GaussDBDbType . Nvarchar2 => DbType . String ,
638+ GaussDBDbType . NVarchar2 => DbType . String ,
639639 GaussDBDbType . Char => DbType . String ,
640640 GaussDBDbType . Name => DbType . String ,
641641 GaussDBDbType . Citext => DbType . String ,
@@ -678,7 +678,7 @@ public static DbType ToDbType(this GaussDBDbType gaussdbDbType)
678678 GaussDBDbType . Xml => "xml" ,
679679 GaussDBDbType . Varchar => "varchar" ,
680680 GaussDBDbType . Varchar2 => "varchar2" ,
681- GaussDBDbType . Nvarchar2 => "nvarchar2" ,
681+ GaussDBDbType . NVarchar2 => "nvarchar2" ,
682682 GaussDBDbType . Char => "bpchar" ,
683683 GaussDBDbType . Name => "name" ,
684684 GaussDBDbType . Refcursor => "refcursor" ,
@@ -797,7 +797,7 @@ internal static string ToUnqualifiedDataTypeNameOrThrow(this GaussDBDbType gauss
797797 GaussDBDbType . Xml => DataTypeNames . Xml ,
798798 GaussDBDbType . Varchar => DataTypeNames . Varchar ,
799799 GaussDBDbType . Varchar2 => DataTypeNames . Varchar2 ,
800- GaussDBDbType . Nvarchar2 => DataTypeNames . Nvarchar2 ,
800+ GaussDBDbType . NVarchar2 => DataTypeNames . NVarchar2 ,
801801 GaussDBDbType . Char => DataTypeNames . Bpchar ,
802802 GaussDBDbType . Name => DataTypeNames . Name ,
803803 GaussDBDbType . Refcursor => DataTypeNames . RefCursor ,
@@ -907,7 +907,7 @@ _ when gaussdbDbType.HasFlag(GaussDBDbType.Multirange)
907907 "xml" => GaussDBDbType . Xml ,
908908 "varchar" => GaussDBDbType . Varchar ,
909909 "varchar2" => GaussDBDbType . Varchar2 ,
910- "nvarchar2" => GaussDBDbType . Nvarchar2 ,
910+ "nvarchar2" => GaussDBDbType . NVarchar2 ,
911911 "bpchar" => GaussDBDbType . Char ,
912912 "name" => GaussDBDbType . Name ,
913913 "refcursor" => GaussDBDbType . Refcursor ,
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