http://www.dba-oracle.com/bk_show_indexes_in_oracle.htm WebI need a small clarification on Bitmap Indexes. Example: My table Structire. Usage_type not null Primary key Used_or_not null check (used_or_not in ('Y','N') With this structure I acn insert a null value into Used_or_not column. But my queires or much based on used_or_not, The designer is not accepting to change the column used_or_not to Not Null.
How to check index on a Table and its Size in Oracle - orahow
WebYou can only see the object-level detail once a flush occurs, so you will need to keep an eye on the LAST_FLUSH_TIME value when you are monitoring index usage. The following query checks the V$INDEX_USAGE_INFO view, performs some actions that use indexes and checks the view again. -- Check statistics. WebMay 6, 2024 · Query to check unusable indexes in oracle We can have an index, index partition, and index subpartitions in an unusable state. Let’s check the queries to find and rebuild them Indexes: SELECT owner, index_name, tablespace_nameFROM dba_indexesWHERE status = 'UNUSABLE'; Index partitions: horse race tracks in massachusetts
How to find the actual space being consumed by indexes …
WebApr 18, 2024 · how to find all indexes and their columns for tables, views and synonyms in oracle. I jotted down the following query which will list the index name and its columns for … WebSep 8, 2024 · how to check unusable indexes in oracle SELECT owner, index_name, tablespace_name,status FROM dba_indexes WHERE status = 'UNUSABLE'; Index … WebMar 11, 2024 · There are 6 different types of indexes in oracle (1) B-Tree (2) Compressed B-Tree (3) Bitmap (4) Function-Based (5) Reverse Key (RKI) (6) Index organized table (IOT). Let’s find out each of them in detail and how to create an index in oracle for each of these types B – Tree Index: B-Tree Indexes (balanced tree) are the most common type of index. psa supply chain