System Tables – Oracle

Não é muito comum realizarmos buscas nas tabelas de sistema das bases de dados, porém quando precisamos obter algumas informações como privilégios de usuários, índices, views, número de conexões ativas na instância, constraints, triggers, etc, utilizamos as tabelas de sistemas.

Aqui abaixo você encontra uma lista das tabelas mais comuns dos metadados do Oracle – em ordem alfabética:

System Table Description
ALL_ARGUMENTS Arguments in object accessible to the user
ALL_CATALOG All tables, views, synonyms, sequences accessible to the user
ALL_COL_COMMENTS Comments on columns of accessible tables and views
ALL_CONSTRAINTS Constraint definitions on accessible tables
ALL_CONS_COLUMNS Information about accessible columns in constraint definitions
ALL_DB_LINKS Database links accessible to the user
ALL_ERRORS Current errors on stored objects that user is allowed to create
ALL_INDEXES Descriptions of indexes on tables accessible to the user
ALL_IND_COLUMNS COLUMNs comprising INDEXes on accessible TABLES
ALL_LOBS Description of LOBs contained in tables accessible to the user
ALL_OBJECTS Objects accessible to the user
ALL_OBJECT_TABLES Description of all object tables accessible to the user
ALL_SEQUENCES Description of SEQUENCEs accessible to the user
ALL_SNAPSHOTS Snapshots the user can access
ALL_SOURCE Current source on stored objects that user is allowed to create
ALL_SYNONYMS All synonyms accessible to the user
ALL_TABLES Description of relational tables accessible to the user
ALL_TAB_COLUMNS Columns of user’s tables, views and clusters
ALL_TAB_COL_STATISTICS Columns of user’s tables, views and clusters
ALL_TAB_COMMENTS Comments on tables and views accessible to the user
ALL_TRIGGERS Triggers accessible to the current user
ALL_TRIGGER_COLS Column usage in user’s triggers or in triggers on user’s tables
ALL_TYPES Description of types accessible to the user
ALL_UPDATABLE_COLUMNS Description of all updatable columns
ALL_USERS Information about all users of the database
ALL_VIEWS Description of views accessible to the user
DATABASE_COMPATIBLE_LEVEL Database compatible parameter set via init.ora
DBA_DB_LINKS All database links in the database
DBA_ERRORS Current errors on all stored objects in the database
DBA_OBJECTS All objects in the database
DBA_ROLES All Roles which exist in the database
DBA_ROLE_PRIVS Roles granted to users and roles
DBA_SOURCE Source of all stored objects in the database
DBA_TABLESPACES Description of all tablespaces
DBA_TAB_PRIVS All grants on objects in the database
DBA_TRIGGERS All triggers in the database
DBA_TS_QUOTAS Tablespace quotas for all users
DBA_USERS Information about all users of the database
DBA_VIEWS Description of all views in the database
DICTIONARY Description of data dictionary tables and views
DICT_COLUMNS Description of columns in data dictionary tables and views
GLOBAL_NAME global database name
NLS_DATABASE_PARAMETERS Permanent NLS parameters of the database
NLS_INSTANCE_PARAMETERS NLS parameters of the instance
NLS_SESSION_PARAMETERS NLS parameters of the user session
PRODUCT_COMPONENT_VERSION version and status information for component products
ROLE_TAB_PRIVS Table privileges granted to roles
SESSION_PRIVS Privileges which the user currently has set
SESSION_ROLES Roles which the user currently has enabled.
SYSTEM_PRIVILEGE_MAP Description table for privilege type codes. Maps privilege type numbers to type names
TABLE_PRIVILEGES Grants on objects for which the user is the grantor, grantee, owner, or an enabled role or PUBLIC is the grantee
TABLE_PRIVILEGE_MAP Description table for privilege (auditing option) type codes. Maps privilege (auditing option) type numbers to type names

Para saber mais sobre os resultados mostrados por cada tabela, acessem este link (Documentação no site da Oracle): http://bit.ly/RWbeoE

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