Oracle数据字典(9) USER_TRIGGER_COLS Column usage in user's triggers USER_TS_QUOTAS Tablespace quotas for the user USER_USERS Information about the current user USER_VIEWS Text of views owned by the user AUDIT_ACTIONS Description table for audit trail action type codes. Maps action type numbers to action type names COLUMN_PRIVILEGES Grants on columns for which the user is the grantor, grantee, owner, or an enabled role or PUBLIC is the grantee DICTIONARY Description of data dictionary tables and views DICT_COLUMNS Description of columns in data dictionary tables and views DUAL GLOBAL_NAME global database name INDEX_HISTOGRAM statistiCS on keys with repeat count