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Categories / Oracle PLSQL / System Tables Views
 

User_tables structure

SQL> SQL> describe user_tables;  Name                                                                                                  Null?    Type  ----------------------------------------------------------------------------------------------------- -------- --------------------------------------------------------------------  TABLE_NAME                                                                                            NOT NULL VARCHAR2(30)  TABLESPACE_NAME                                                                                        VARCHAR2(30)  CLUSTER_NAME                                                                                           VARCHAR2(30)  IOT_NAME                                                                                               VARCHAR2(30)  STATUS                                                                                                 VARCHAR2(8)  PCT_FREE                                                                                               NUMBER  PCT_USED                                                                                               NUMBER  INI_TRANS                                                                                              NUMBER  MAX_TRANS                                                                                              NUMBER  INITIAL_EXTENT                                                                                         NUMBER  NEXT_EXTENT                                                                                            NUMBER  MIN_EXTENTS                                                                                            NUMBER  MAX_EXTENTS                                                                                            NUMBER  PCT_INCREASE                                                                                           NUMBER  FREELISTS                                                                                              NUMBER  FREELIST_GROUPS                                                                                        NUMBER  LOGGING                                                                                                VARCHAR2(3)  BACKED_UP                                                                                              VARCHAR2(1)  NUM_ROWS                                                                                               NUMBER  BLOCKS                                                                                                 NUMBER  EMPTY_BLOCKS                                                                                           NUMBER  AVG_SPACE                                                                                              NUMBER  CHAIN_CNT                                                                                              NUMBER  AVG_ROW_LEN                                                                                            NUMBER  AVG_SPACE_FREELIST_BLOCKS                                                                              NUMBER  NUM_FREELIST_BLOCKS                                                                                    NUMBER  DEGREE                                                                                                 VARCHAR2(10)  INSTANCES                                                                                              VARCHAR2(10)  CACHE                                                                                                  VARCHAR2(5)  TABLE_LOCK                                                                                             VARCHAR2(8)  SAMPLE_SIZE                                                                                            NUMBER  LAST_ANALYZED                                                                                          DATE  PARTITIONED                                                                                            VARCHAR2(3)  IOT_TYPE                                                                                               VARCHAR2(12)  TEMPORARY                                                                                              VARCHAR2(1)  SECONDARY                                                                                              VARCHAR2(1)  NESTED                                                                                                 VARCHAR2(3)  BUFFER_POOL                                                                                            VARCHAR2(7)  ROW_MOVEMENT                                                                                           VARCHAR2(8)  GLOBAL_STATS                                                                                           VARCHAR2(3)  USER_STATS                                                                                             VARCHAR2(3)  DURATION                                                                                               VARCHAR2(15)  SKIP_CORRUPT                                                                                           VARCHAR2(8)  MONITORING                                                                                             VARCHAR2(3)  CLUSTER_OWNER                                                                                          VARCHAR2(30)  DEPENDENCIES                                                                                           VARCHAR2(8)  COMPRESSION                                                                                            VARCHAR2(8)  DROPPED                                                                                                VARCHAR2(3) SQL> SQL> select table_name, tablespace_name   2        from user_tables   3        where rownum < 10   4       order by table_name; TABLE_NAME                     TABLESPACE_NAME ------------------------------ ------------------------------ CCOL$                          SYSTEM CDEF$                          SYSTEM CON$                           SYSTEM FET$                           SYSTEM FILE$                          SYSTEM PROXY_DATA$                    SYSTEM PROXY_ROLE_DATA$               SYSTEM TS$                            SYSTEM UNDO$                          SYSTEM 9 rows selected. SQL> SQL> SQL>