diff --git a/htdocs/core/db/DoliDB.class.php b/htdocs/core/db/DoliDB.class.php
index 0caba62bf2d..a246bb6f15c 100644
--- a/htdocs/core/db/DoliDB.class.php
+++ b/htdocs/core/db/DoliDB.class.php
@@ -89,6 +89,16 @@ abstract class DoliDB implements Database
 		return dol_print_date($param,"%Y%m%d%H%M%S");
 	}
 
+	/**
+	 *	Return last error code
+	 *
+	 *	@return	    string	lasterrno
+	 */
+	function lasterrno()
+	{
+		return $this->lasterrno;
+	}
+
 	/**
 	 * Define sort criteria of request
 	 *
diff --git a/htdocs/core/db/mssql.class.php b/htdocs/core/db/mssql.class.php
index 5d3f9b449ce..6f215e9d6f0 100644
--- a/htdocs/core/db/mssql.class.php
+++ b/htdocs/core/db/mssql.class.php
@@ -583,16 +583,6 @@ class DoliDBMssql extends DoliDB
 		return $this->lasterror;
 	}
 
-	/**
-	 *	Return last error code
-	 *
-	 *	@return	    string	lasterrno
-	 */
-	function lasterrno()
-	{
-		return $this->lasterrno;
-	}
-
 	/**
      *	Return generic error code of last operation.
      *
diff --git a/htdocs/core/db/mysql.class.php b/htdocs/core/db/mysql.class.php
index d1d86711513..7ebb8f84c16 100644
--- a/htdocs/core/db/mysql.class.php
+++ b/htdocs/core/db/mysql.class.php
@@ -548,16 +548,6 @@ class DoliDBMysql extends DoliDB
 		return $this->lasterror;
 	}
 
-	/**
-	 *	Return last error code
-	 *
-	 *	@return	    string	lasterrno
-	 */
-	function lasterrno()
-	{
-		return $this->lasterrno;
-	}
-
 	/**
      *	Return generic error code of last operation.
      *
diff --git a/htdocs/core/db/mysqli.class.php b/htdocs/core/db/mysqli.class.php
index f4d8d6f6a44..f7bb2c3515b 100644
--- a/htdocs/core/db/mysqli.class.php
+++ b/htdocs/core/db/mysqli.class.php
@@ -559,16 +559,6 @@ class DoliDBMysqli extends DoliDB
         return $this->lasterror;
     }
 
-    /**
-     *	Renvoie le code derniere erreur
-     *
-     *	@return	    string	lasterrno
-     */
-    function lasterrno()
-    {
-        return $this->lasterrno;
-    }
-
     /**
      *	Return generic error code of last operation.
      *
diff --git a/htdocs/core/db/pgsql.class.php b/htdocs/core/db/pgsql.class.php
index 7b2961e623c..5ee421b9a50 100644
--- a/htdocs/core/db/pgsql.class.php
+++ b/htdocs/core/db/pgsql.class.php
@@ -796,16 +796,6 @@ class DoliDBPgsql extends DoliDB
 		return $this->lasterror;
 	}
 
-	/**
-	 * 	Renvoie le code derniere erreur
-	 *
-	 * 	@return	    string	lasterrno
-	 */
-	function lasterrno()
-	{
-		return $this->lasterrno;
-	}
-
 	/**
 	 * Renvoie le code erreur generique de l'operation precedente.
 	 *
diff --git a/htdocs/core/db/sqlite.class.php b/htdocs/core/db/sqlite.class.php
index 4695bb15807..aae07cce299 100644
--- a/htdocs/core/db/sqlite.class.php
+++ b/htdocs/core/db/sqlite.class.php
@@ -692,16 +692,6 @@ class DoliDBSqlite extends DoliDB
         return $this->lasterror;
     }
 
-	/**
-	 *	Return last error code
-	 *
-	 *	@return	    string	lasterrno
-	 */
-    function lasterrno()
-    {
-        return $this->lasterrno;
-    }
-
     /**
      *	Renvoie le code erreur generique de l'operation precedente.
      *