get version result and login from oracle

plugins/dbgate-plugin-oracle/src/backend/sql/columns.js

@@ -0,0 +1,23 @@
+module.exports = `
+select 
+	table_schema as "schema_name", 
+	table_name as "pure_name", 
+	column_name as "column_name",
+	is_nullable as "is_nullable",
+	data_type as "data_type",
+	character_maximum_length as "char_max_length",
+	numeric_precision as "numeric_precision",
+	numeric_scale as "numeric_scale",
+	column_default as "default_value"
+from information_schema.columns
+where 
+		table_schema <> 'information_schema' 
+		and table_schema <> 'pg_catalog' 
+		and table_schema !~ '^pg_toast' 
+		and (
+			('tables:' || table_schema || '.' || table_name) =OBJECT_ID_CONDITION
+			or
+			('views:' || table_schema || '.' || table_name) =OBJECT_ID_CONDITION
+		)
+order by ordinal_position
+`;