diff --git a/engine.go b/engine.go
index cdb2b541..44815f9f 100644
--- a/engine.go
+++ b/engine.go
@@ -373,12 +373,14 @@ func (engine *Engine) DumpAll(w io.Writer) error {
 				} else if col.SQLType.IsText() || col.SQLType.IsTime() {
 					var v = fmt.Sprintf("%s", d)
 					temp += ", '" + strings.Replace(v, "'", "''", -1) + "'"
-				} else if col.SQLType.IsBlob() /**/ {
+				} else if col.SQLType.IsBlob() {
 					if reflect.TypeOf(d).Kind() == reflect.Slice {
 						temp += fmt.Sprintf(", %s", engine.dialect.FormatBytes(d.([]byte)))
 					} else if reflect.TypeOf(d).Kind() == reflect.String {
 						temp += fmt.Sprintf(", '%s'", d.(string))
 					}
+				} else if col.SQLType.IsNumeric() {
+					temp += fmt.Sprintf(", %s", string(d.([]byte)))
 				} else {
 					s := fmt.Sprintf("%v", d)
 					if strings.Contains(s, ":") || strings.Contains(s, "-") {
diff --git a/mssql_dialect.go b/mssql_dialect.go
index 5cd2f52b..eee50795 100644
--- a/mssql_dialect.go
+++ b/mssql_dialect.go
@@ -168,7 +168,7 @@ where a.object_id=object_id('` + tableName + `')`
 			}
 		}
 
-		if col.SQLType.IsText() {
+		if col.SQLType.IsText() || col.SQLType.IsTime() {
 			if col.Default != "" {
 				col.Default = "'" + col.Default + "'"
 			} else {
diff --git a/mysql_dialect.go b/mysql_dialect.go
index b7fdb01b..ee1f4e06 100644
--- a/mysql_dialect.go
+++ b/mysql_dialect.go
@@ -228,7 +228,7 @@ func (db *mysql) GetColumns(tableName string) ([]string, map[string]*core.Column
 			col.IsAutoIncrement = true
 		}
 
-		if col.SQLType.IsText() {
+		if col.SQLType.IsText() || col.SQLType.IsTime() {
 			if col.Default != "" {
 				col.Default = "'" + col.Default + "'"
 			} else {
diff --git a/oracle_dialect.go b/oracle_dialect.go
index e23ab297..57da2c50 100644
--- a/oracle_dialect.go
+++ b/oracle_dialect.go
@@ -158,7 +158,7 @@ func (db *oracle) GetColumns(tableName string) ([]string, map[string]*core.Colum
 
 		col.Length = dataLen
 
-		if col.SQLType.IsText() {
+		if col.SQLType.IsText() || col.SQLType.IsTime() {
 			if col.Default != "" {
 				col.Default = "'" + col.Default + "'"
 			} else {