--- a/oracle.rst	Sat Sep 30 17:17:31 2017 +0300
+++ b/oracle.rst	Wed Oct 04 17:40:29 2017 +0300
@@ -81,10 +81,30 @@
 
   select sum(BYTES) from USER_EXTENTS;
 
-Tables indexes::
+Table indexes restricted to user::
 
   select * from USER_INDEXES order by TABLE_NAME;
 
+Table indexes available to user::
+
+  select * from ALL_INDEXES order by TABLE_NAME;
+
+All table indexes::
+
+  select * from DBA_INDEXES order by TABLE_NAME;
+
+View index columns::
+
+  select * from DBA_IND_COLUMNS;
+  select * from ALL_IND_COLUMNS;
+  select * from USER_IND_COLUMNS;
+
+Vie index expressions::
+
+  select * from DBA_IND_EXPRESSIONS;
+  select * from ALL_IND_EXPRESSIONS;
+  select * from USER_IND_EXPRESSIONS;
+
 List of index sizes::
 
   select index_name, table_name, sum(user_extents.bytes) as bytes from user_indexes
@@ -92,6 +112,13 @@
     group by index_name, table_name
     order by table_name;
 
+View index statistics::
+
+  select * from DBA_IND_STATISTICS;
+  select * from ALL_IND_STATISTICS;
+  select * from USER_IND_STATISTICS;
+  select * from INDEX_STATS;
+
 List of tables without primary keys::
 
   select OWNER || '.' || TABLE_NAME from ALL_TABLES
@@ -100,10 +127,28 @@
     ) and OWNER in ('USER1', 'USER2')
     order by OWNER, TABLE_NAME;
 
-List of currenct user constraints::
+List of current constraints limited to current user::
 
   select * from USER_CONSTRAINTS;
 
+List of constraints available to user::
+
+  select * from ALL_CONSTRAINTS;
+
+List of all constraints::
+
+  select * from DBA_CONSTRAINTS;
+
+.. note::
+   ``CONSTRAINT_TYPE``:
+
+   * ``C`` (check constraint on a table)
+   * ``P`` (primary key)
+   * ``U`` (unique key)
+   * ``R`` (referential integrity)
+   * ``V`` (with check option, on a view)
+   * ``O`` (with read only, on a view)
+
 List of tablespaces::
 
   select distinct TABLESPACE_NAME from USER_TABLES;